Author: "Daelemans, C." - Searchworks@Jio Institute Digital Library Search Results

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1. High-throughput analysis of candidate imprinted genes and allele-specific expression

Author: Daelemans, C. S. F.
Subjects: 618.92
Abstract: In diploid human organisms, the ~20,000 genes are usually functional as two active copies or alleles. Exceptionally, some genes have only one active allele while the other is silenced. Two different groups of genes fall into this minor category; the genes that exhibit random monoallelic expression (e.g. odorant receptor genes and genes coding for immunoglobulins), and those genes exhibiting monoallelic expression in a parent-of-origin specific manner, named imprinted genes. At the outset of this study in October 2006, 56 genes in humans were known to be imprinted and 98 in mice, but the total number of imprinted genes in either species was unknown. I have used high-throughput allele-specific PCR assays to screen human term placental tissue samples for new imprinted genes. Hundreds of genes were tested either because they were predicted to be imprinted or because they were candidates for which the imprinted status was simply unknown in human term placenta. My results suggested that we are reaching saturation in the number of human placentally imprinted genes. I show that ZNF331 is imprinted in human placenta and is part of a primate lineagespecific imprinted locus showing differential methylation. My data also highlights that parental allelic specific expression is a continuum, from imprinted monoallelic expression to partial imprinting (i.e., one parental allele is slightly more (or less) expressed than the other). This continuum suggests a requirement to sequence the transcriptome of every human tissue at each different developmental stage exhaustively to assess genes for parent-of-origin specific expression and to clearly define what imprinting means. Most importantly whether ‘partial’ imprinting has functional significance or is just a part of the dynamic flux of gene expression. Specifically, my results call for thorough investigation of the ZNF331 locus in human development, physiology and parent-of-origin specific diseases.
Published: 2013

2. Impact of implementation of a breech clinic in a tertiary hospital

Author: Derisbourg, S., Costa, E., De Luca, L., Amirgholami, S., Bogne Kamdem, V., Vercoutere, A., Zhang, W. H., Alexander, S., Buekens, P. M., Englert, Y., Pintiaux, A., and Daelemans, C.
Published: 2020
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3. Recurrent severe thiamine deficiency following bariatric surgery in pregnant women

Author: Safraoui, S, primary, Brenez, C, additional, De Raedt, S, additional, Vandemeulebroucke, E, additional, Decochez, K, additional, Lefèvre, G, additional, Derisbourg, S, additional, Daelemans, C, additional, and Vercoutere, A, additional
Published: 2023
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4. Accouchement vaginal après une césarienne en 2022 : revue narrative de la littérature [Trial of labour after c-section in 2022: a narrative review of the literature]

Author: Desseauve, D., Legardeur, H., Haydar, A., Vial, Y., Jastrow, N., and Daelemans, C.
Subjects: Female, Pregnancy, Humans, Cesarean Section, Vaginal Birth after Cesarean, Trial of Labor, Delivery, Obstetric, Parturition
Abstract: One in three women in Switzerland gives birth by c-section. This high incidence of c-section frequently exposes obstetricians and midwives to the management of women and their deliveries with a scarred uterus. The decision of couples is multifactorial, but the information that will be delivered by their gynaecologist will necessarily influence the delivery route choice. We propose to review the international recommendations and the literature on the subject, to provide the couple and the attending physician with elements of reflection to guide the choice of delivery route or to monitor adequately when attempting vaginal delivery after a caesarean section.
Published: 2022

5. Erratum: Risk factors associated with adverse fetal outcomes in pregnancies affected by Coronavirus disease 2019 (COVID-19): A secondary analysis of the WAPM study on COVID-19 (Journal of Perinatal Medicine (2020) 48:9 (950-958) DOI: 10.1515/jpm-2020-0355)

Author: Di Mascio D., Sen C., Saccone G., Galindo A., Grunebaum A., Yoshimatsu J., Stanojevic M., Kurjak A., Chervenak F., Vena F., Giancotti A., Brunelli R., Muzii L., Panici P. B., Mollo A., Berghella V., Flacco M. E., Manzoli L., Esposito R., Coviello A., Cerbone M., Maruotti G. M., Nazzaro G., Locci M., Guida M., Di Spiezio Sardo A., Bifulco G., Zullo F., Herraiz I., Villalain C., Suarez M. J. R., Gambacorti-Passerini Z. M., De Los Angeles Anaya Baz M., Galan E. V. A., Carbone I. F., Lopez Y. C., De Leon Luis J. A., Hernandez I. C., Venturella R., Rizzo G., Mappa I., Gerosolima G., Hellmeyer L., Frusca T., Volpe N., Schera G. B. L., Fieni S., Esposito E., Simonazzi G., Di Donna G., Youssef A., Gatta A. N. D., Di Donna M. C., Chiantera V., Buono N., Sozzi G., Greco P., Morano D., Bianchi B., Marino M. G. L., Laraud F., Ramone A., Cagnacci A., Barra F., Gustavino C., Ferrero S., Ghezzi F., Cromi A., Lagana A. S., Longo V. L., Stollagli F., Puri L., Sirico A., Scambia G., Lanzone A., Driul L., Fabiana Cecchini D., Xodo S., Rodriguez B., Mercado-Olivares F., Elkafrawi D., Sisti G., Morlando M., Schiattarella A., Colacurci N., De Franciscis P., Valori E., Cataneo I., Lenzi M., Sandri F., Buscemi R., Gattei G., Della Sala F., Rovellotti M. C., Done E., Faron G., Gucciardo L., Luigi N., Sorrentino F., Vasciaveo L., Liberati M., Buca D., Leombroni M., Di Sebastiano F., Di Tizio L., D'Antonio F., Gazzolo D., Franchi M., Ianniciello Q. C., Garzon S., Petriglia G., Borrello L., Nieto-Calvache A. J., Burgos-Luna J. M., Kadji C., Carlin A., Bevilacqua E., Moucho M., Pinto P. V., Figueiredo R., Rosello J. M., Loscalzo G., Martinez-Varea A., Diago V., Lopez J. S. J., Aykanat A. Y., Cosma S., Carosso A., Benedetto C., Bermejo A., Feuerschuette O. H. M., Uyaniklar O., Ocakouglu S. R., Atak Z., Gunduz R., Haberal E. T., Froessler B., Parange A., Palm P., Samardjiski I., Okuyan E., Daskalakis G., Antsaklis P., De Sa R. A. M., Pittaro A., Gonzalez-Duran M. L., Guisan A. C., Genc S. O., Zlatohlavkova B., Piqueras A. L., Oliva D. E., Cil A. P., Api O., Ples L., Kyvernitakis I., Lila A., Granese R., Ercoli A., Zoccali G., Villasco A., Biglia N., Madalina C., Costa E., Daelemans C., Pintiaux A., Cueto E., Hadar E., Dollinger S., Sinai N. A. B., Huertas E., Arango P., Sanchez A., Schvartzman J. A., Cojocaru L., Turan S., Turan O., Di Dedda M. C., Molpeceres R. G., Zdjelar S., Premru-Srsen T., Cerar L. K., Druskovic M., De Robertis V., Stefanovic V., Nupponen I., Nelskyla K., Khodjaeva Z., Gorina K. A., Sukhikh G. T., Visentin S., Cosmi E., Ferrari J., Gatti A., Luvero D., Angioli R., Palumbo M., D'Urso G., Colaleo F., Rapisarda A. M. C., Di Mascio D., Sen C., Saccone G., Galindo A., Grunebaum A., Yoshimatsu J., Stanojevic M., Kurjak A., Chervenak F., Vena F., Giancotti A., Brunelli R., Muzii L., Panici P.B., Mollo A., Berghella V., Flacco M.E., Manzoli L., Esposito R., Coviello A., Cerbone M., Maruotti G.M., Nazzaro G., Locci M., Guida M., Di Spiezio Sardo A., Bifulco G., Zullo F., Herraiz I., Villalain C., Suarez M.J.R., Gambacorti-Passerini Z.M., De Los Angeles Anaya Baz M., Galan E.V.A., Carbone I.F., Lopez Y.C., De Leon Luis J.A., Hernandez I.C., Venturella R., Rizzo G., Mappa I., Gerosolima G., Hellmeyer L., Frusca T., Volpe N., Schera G.B.L., Fieni S., Esposito E., Simonazzi G., Di Donna G., Youssef A., Gatta A.N.D., Di Donna M.C., Chiantera V., Buono N., Sozzi G., Greco P., Morano D., Bianchi B., Marino M.G.L., Laraud F., Ramone A., Cagnacci A., Barra F., Gustavino C., Ferrero S., Ghezzi F., Cromi A., Lagana A.S., Longo V.L., Stollagli F., Puri L., Sirico A., Scambia G., Lanzone A., Driul L., Fabiana Cecchini D., Xodo S., Rodriguez B., Mercado-Olivares F., Elkafrawi D., Sisti G., Morlando M., Schiattarella A., Colacurci N., De Franciscis P., Valori E., Cataneo I., Lenzi M., Sandri F., Buscemi R., Gattei G., Della Sala F., Rovellotti M.C., Done E., Faron G., Gucciardo L., Luigi N., Sorrentino F., Vasciaveo L., Liberati M., Buca D., Leombroni M., Di Sebastiano F., Di Tizio L., D'Antonio F., Gazzolo D., Franchi M., Ianniciello Q.C., Garzon S., Petriglia G., Borrello L., Nieto-Calvache A.J., Burgos-Luna J.M., Kadji C., Carlin A., Bevilacqua E., Moucho M., Pinto P.V., Figueiredo R., Rosello J.M., Loscalzo G., Martinez-Varea A., Diago V., Lopez J.S.J., Aykanat A.Y., Cosma S., Carosso A., Benedetto C., Bermejo A., Feuerschuette O.H.M., Uyaniklar O., Ocakouglu S.R., Atak Z., Gunduz R., Haberal E.T., Froessler B., Parange A., Palm P., Samardjiski I., Okuyan E., Daskalakis G., Antsaklis P., De Sa R.A.M., Pittaro A., Gonzalez-Duran M.L., Guisan A.C., Genc S.O., Zlatohlavkova B., Piqueras A.L., Oliva D.E., Cil A.P., Api O., Ples L., Kyvernitakis I., Lila A., Granese R., Ercoli A., Zoccali G., Villasco A., Biglia N., Madalina C., Costa E., Daelemans C., Pintiaux A., Cueto E., Hadar E., Dollinger S., Sinai N.A.B., Huertas E., Arango P., Sanchez A., Schvartzman J.A., Cojocaru L., Turan S., Turan O., Di Dedda M.C., Molpeceres R.G., Zdjelar S., Premru-Srsen T., Cerar L.K., Druskovic M., De Robertis V., Stefanovic V., Nupponen I., Nelskyla K., Khodjaeva Z., Gorina K.A., Sukhikh G.T., Visentin S., Cosmi E., Ferrari J., Gatti A., Luvero D., Angioli R., Palumbo M., D'Urso G., Colaleo F., Rapisarda A.M.C., Di Mascio, D., Sen, C., Saccone, G., Galindo, A., Grunebaum, A., Yoshimatsu, J., Stanojevic, M., Kurjak, A., Chervenak, F., Vena, F., Giancotti, A., Brunelli, R., Muzii, L., Panici, P. B., Mollo, A., Berghella, V., Flacco, M. E., Manzoli, L., Esposito, R., Coviello, A., Cerbone, M., Maruotti, G. M., Nazzaro, G., Locci, M., Guida, M., Di Spiezio Sardo, A., Bifulco, G., Zullo, F., Herraiz, I., Villalain, C., Suarez, M. J. R., Gambacorti-Passerini, Z. M., De Los Angeles Anaya Baz, M., Galan, E. V. A., Carbone, I. F., Lopez, Y. C., De Leon Luis, J. A., Hernandez, I. C., Venturella, R., Rizzo, G., Mappa, I., Gerosolima, G., Hellmeyer, L., Frusca, T., Volpe, N., Schera, G. B. L., Fieni, S., Esposito, E., Simonazzi, G., Di Donna, G., Youssef, A., Gatta, A. N. D., Di Donna, M. C., Chiantera, V., Buono, N., Sozzi, G., Greco, P., Morano, D., Bianchi, B., Marino, M. G. L., Laraud, F., Ramone, A., Cagnacci, A., Barra, F., Gustavino, C., Ferrero, S., Ghezzi, F., Cromi, A., Lagana, A. S., Longo, V. L., Stollagli, F., Puri, L., Sirico, A., Scambia, G., Lanzone, A., Driul, L., Fabiana Cecchini, D., Xodo, S., Rodriguez, B., Mercado-Olivares, F., Elkafrawi, D., Sisti, G., Morlando, M., Schiattarella, A., Colacurci, N., De Franciscis, P., Valori, E., Cataneo, I., Lenzi, M., Sandri, F., Buscemi, R., Gattei, G., Della Sala, F., Rovellotti, M. C., Done, E., Faron, G., Gucciardo, L., Luigi, N., Sorrentino, F., Vasciaveo, L., Liberati, M., Buca, D., Leombroni, M., Di Sebastiano, F., Di Tizio, L., D'Antonio, F., Gazzolo, D., Franchi, M., Ianniciello, Q. C., Garzon, S., Petriglia, G., Borrello, L., Nieto-Calvache, A. J., Burgos-Luna, J. M., Kadji, C., Carlin, A., Bevilacqua, E., Moucho, M., Pinto, P. V., Figueiredo, R., Rosello, J. M., Loscalzo, G., Martinez-Varea, A., Diago, V., Lopez, J. S. J., Aykanat, A. Y., Cosma, S., Carosso, A., Benedetto, C., Bermejo, A., Feuerschuette, O. H. M., Uyaniklar, O., Ocakouglu, S. R., Atak, Z., Gunduz, R., Haberal, E. T., Froessler, B., Parange, A., Palm, P., Samardjiski, I., Okuyan, E., Daskalakis, G., Antsaklis, P., De Sa, R. A. M., Pittaro, A., Gonzalez-Duran, M. L., Guisan, A. C., Genc, S. O., Zlatohlavkova, B., Piqueras, A. L., Oliva, D. E., Cil, A. P., Api, O., Ples, L., Kyvernitakis, I., Lila, A., Granese, R., Ercoli, A., Zoccali, G., Villasco, A., Biglia, N., Madalina, C., Costa, E., Daelemans, C., Pintiaux, A., Cueto, E., Hadar, E., Dollinger, S., Sinai, N. A. B., Huertas, E., Arango, P., Sanchez, A., Schvartzman, J. A., Cojocaru, L., Turan, S., Turan, O., Di Dedda, M. C., Molpeceres, R. G., Zdjelar, S., Premru-Srsen, T., Cerar, L. K., Druskovic, M., De Robertis, V., Stefanovic, V., Nupponen, I., Nelskyla, K., Khodjaeva, Z., Gorina, K. A., Sukhikh, G. T., Visentin, S., Cosmi, E., Ferrari, J., Gatti, A., Luvero, D., Angioli, R., Palumbo, M., D'Urso, G., Colaleo, F., and Rapisarda, A. M. C.
Subjects: N.A
Abstract: Due to a technical error, the author list at the end of this article is unfortunately incorrect. Elif Gül Yapar Eyi is not a co-author, and therefore, his name and affiliation should not appear in the list. The correct author list and affiliations read as follows: Daniele Di Mascio, Cihat Sen, Gabriele Saccone, Alberto Galindo, Amos Grünebaum, Jun Yoshimatsu, Milan Stanojevic, AsimKurjak, Frank Chervenak, María Jos´e Rodríguez Suárez, Zita Maria Gambacorti-Passerini, María de los Angeles Anaya Baz, Esther Vanessa Aguilar Galán, Yolanda Cuñarro López, Juan Antonio De León Luis, Ignacio Cueto Hernández, Ignacio Herraiz, Cecilia Villalain, Roberta Venturella, Giuseppe Rizzo, Ilenia Mappa, Giovanni Gerosolima, Lars Hellmeyer, Josefine Königbauer, Giada Ameli, Tiziana Frusca, Nicola Volpe, Giovanni Battista Luca Schera, Stefania Fieni, Eutalia Esposito, Giuliana Simonazzi, Gaetana Di Donna, Aly Youssef, Anna Nunzia Della Gatta, Mariano Catello Di Donna, Vito Chiantera, Natalina Buono, Giulio Sozzi, Pantaleo Greco, Danila Morano, Beatrice Bianchi, Maria Giulia Lombana Marino, Federica Laraud, Arianna Ramone, Angelo Cagnacci, Fabio Barra, Claudio Gustavino, Simone Ferrero, Fabio Ghezzi, Antonella Cromi, Antonio Simone Laganá, Valentina Laurita Longo, Francesca Stollagli, Angelo Sirico, Antonio Lanzone, Lorenza Driul, Fabiana Cecchini D, Serena Xodo, Brian Rodriguez, Felipe Mercado-Olivares, Deena Elkafrawi, Giovanni Sisti, Rosanna Esposito, Antonio Coviello, Marco Cerbone, Maddalena Morlando, Antonio Schiattarella, Nicola Colacurci, Pasquale De Franciscis, Ilaria Cataneo, Marinella Lenzi, Fabrizio Sandri, Riccardo Buscemi, Giorgia Gattei, Francesca della Sala, Eleonora Valori, Maria Cristina Rovellotti, Elisa Done, Gilles Faron, Leonardo Gucciardo, Valentina Esposito, Flaminia Vena, Antonella Giancotti, Roberto Brunelli, Ludovico Muzii, Luigi Nappi, Felice Sorrentino, Lorenzo Vasciaveo, Marco Liberati, Danilo Buca, Martina Leombroni, Francesca Di Sebastiano, Luciano Di Tizio, Diego Gazzolo, Massimo Franchi, Quintino Cesare Ianniciello, Simone Garzon, Giuliano Petriglia, Leonardo Borrello, Albaro Jos´e Nieto-Calvache, Juan Manuel Burgos-Luna, Caroline Kadji, Andrew Carlin, Elisa Bevilacqua, Marina Moucho, Pedro Viana Pinto, Rita Figueiredo, Jos´e Morales Roselló, Gabriela Loscalzo, Alicia Martinez-Varea, Vincente Diago, Jesús S Jimenez Lopez, Alicia Yeliz Aykanat, Stefano Cosma, Andrea Carosso, Chiara Benedetto, Amanda Bermejo, Otto Henrique May Feuerschuette, Ozlem Uyaniklar, Sakine Rahimli Ocakouglu, Zeliha Atak, Reyhan Gündüz, Esra Tustas Haberal, Bernd Froessler, Anupam Parange, Peter Palm, Igor Samardjiski, Chiara Taccaliti, Erhan Okuyan, George Daskalakis, Renato Augusto Moreira de Sa, Alejandro Pittaro, Maria Luisa Gonzalez-Duran, Ana Concheiro Guisan, Serife Özlem Genç, Blanka Zlatohlávková, Anna Luengo Piqueras, Dolores Esteban Oliva, Aylin Pelin Cil, Olus Api, Panos Antsaklis, Liana Ples, Ioannis Kyvernitakis, Holger Maul, Marcel Malan, Albert Lila, Roberta Granese, Alfredo Ercoli, Giuseppe Zoccali, Andrea Villasco, Nicoletta Biglia, Ciuhodaru Madalina, Elena Costa, Caroline Daelemans, Axelle Pintiaux, Elisa Cueto, Eran Hadar, Sarah Dollinger, Noa A. Brzezinski Sinai, Erasmo Huertas, Pedro Arango, Amadeo Sanchez, Javier Alfonso Schvartzman, Liviu Cojocaru, Sifa Turan, Ozhan Turan, Maria Carmela Di Dedda, Rebeca Garrote Molpeceres, Snezana Zdjelar, Tanja Premru-Srsen, Lilijana Kornhauser Cerar, Mirjam Druškovic, Valentina De Robertis, Vedran Stefanovic, Irmeli Nupponen, Kaisa Nelskylä, Zulfiya Khodjaeva, Ksenia A. Gorina, Gennady T. Sukhikh, Giuseppe Maria Maruotti, Silvia Visentin, Erich Cosmi, Jacopo Ferrari, Alessandra Gatti, Daniela Luvero, Roberto Angioli, Ludovica Puri, Marco Palumbo, Giusella D’Urso, Francesco Colaleo, Agnese Maria Chiara Rapisarda, Ilma Floriana Carbone, Antonio Mollo, Giovanni Nazzaro, Mariavittoria Locci, Maurizio Guida, Attilio Di Spiezio Sardo, Pierluigi Benedetti Panici, Vincenzo Berghella, Maria Elena Flacco, Lamberto Manzoli, Giuseppe Bifulco, Giovanni Scambia, Fulvio Zullo and Francesco D’Antonio Flaminia Vena, Antonella Giancotti, Roberto Brunelli, Ludovico Muzii and Pierluigi Benedetti Panici, Department of Maternal and Child Health and Urological Sciences, Sapienza University of Rome, Rome, Italy Rosanna Esposito, Antonio Coviello, Marco Cerbone, Giuseppe Maria Maruotti, Giovanni Nazzaro, Mariavittoria Locci, Maurizio Guida, Attilio Di Spiezio Sardo, Giuseppe Bifulco and Fulvio Zullo, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy Ignacio Herraiz and Cecilia Villalain, Department of Obstetrics and Gynaecology, Fetal Medicine Unit, Maternal and Child Health and Development Network, University Hospital 12 de Octubre, Complutense University of Madrid, Madrid, Spain María Jos´e Rodríguez Suárez, Hospital Universitario Central de Asturias, Asturias, Spain Zita Maria Gambacorti-Passerini, Department of Obstetrics and Gynaecology, Ciudad Real University General Hospital, Ciudad Real, Spain María de los Angeles Anaya Baz and Esther Vanessa Aguilar Galán, Department of Obstetrics and Gynaecology, Ciudad Real University General Hospital, Ciudad Real, Spain; University of Castilla-La Mancha, Ciudad Real, Spain Yolanda Cuñarro López, Juan Antonio De León Luis and Ignacio Cueto Hernández, Department of Obstetrics and Gynaecology, Fetal Medicine Unit, Maternal and Child Health and Development Network, Gregorio Marañón Hospital, Complutense University of Madrid, Madrid, Spain Roberta Venturella, Department of Obstetrics and Gynaecology, School of Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy Giuseppe Rizzo, University of Roma Tor Vergata, Division of Maternal Fetal Medicine, Ospedale Cristo Re Roma, Rome, Italy; Department of Obstetrics and Gynaecology, The First I.M. Sechenov Moscow State Medical University, Moscow, Russia Ilenia Mappa, University of Roma Tor Vergata, Division of Maternal Fetal Medicine, Ospedale Cristo Re Roma, Rome, Italy Giovanni Gerosolima, Department of Obstetrics and Gynaecology, Ospedale AOSG Moscati, Avellino, Italy Lars Hellmeyer, Josefine Königbauer and Giada Ameli, Department of Gynaecology and Obstetrics, Vivantes Klinikum im Friedrichshain, Berlin, Germany Tiziana Frusca, Nicola Volpe, Giovanni Battista Luca Schera and Stefania Fieni, Department of Obstetrics and Gynaecology, University of Parma, Parma, Italy Eutalia Esposito, Department of Obstetrics and Gynaecology, Ospedale di San Leonardo, Castellammare di Stabia, Italy Giuliana Simonazzi, Gaetana Di Donna, Aly Youssef and Anna Nunzia Della Gatta, Department of Obstetrics and Gynaecology, University of Bologna, Sant’Orsola- Malpighi University Hospital, Bologna, Italy Mariano Catello Di Donna, Vito Chiantera, Natalina Buono and Giulio Sozzi, Department of Gynaecologic Oncology, University of Palermo, Palermo, Sicilia, Italy Pantaleo Greco, Danila Morano, Beatrice Bianchi and Maria Giulia Lombana Marino, Department ofMedical Sciences, Section of Obstetrics and Gynaecology, Azienda Ospedaliera-Universitaria Sant’Anna, University of Ferrara, Ferrara, Italy Federica Laraud, Arianna Ramone, Angelo Cagnacci, Fabio Barra, Claudio Gustavino and Simone Ferrero, Academic Unit of Obstetrics and Gynaecology, IRCCS Ospedale Policlinico, San Martino, Genova, Italy Fabio Ghezzi, Antonella Cromi and Antonio Simone Laganà, Department of Obstetrics and Gynaecology, “Filippo Del Ponte” Hospita University of Insubria, Varese, Italy Valentina Laurita Longo, Department of Obstetrics and Gynaecology, Fondazione Policlinico Universitario A Gemelli IRCCS – Università Cattolica del Sacro Cuore, Rome, Italy; Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Rome, Italy; and Queen Margaret University, Institute for Global Health and Development, Edinburgh, UK Francesca Stollagli and Ludovica Puri, Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Rome, Italy Angelo Sirico and Giovanni Scambia, Department of Obstetrics and Gynaecology, Fondazione Policlinico Universitario A Gemelli IRCCS – Università Cattolica del Sacro Cuore, Rome, Italy Antonio Lanzone, Department of Obstetrics and Gynaecology, Fondazione Policlinico Universitario A Gemelli IRCCS – Università Cattolica del Sacro Cuore, Rome, Italy; Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Rome, Italy Lorenza Driul, Fabiana Cecchini D and Serena Xodo, Clinic of Obstetrics and Gynaecology, University of Udine, Udine, Italy Brian Rodriguez, Felipe Mercado-Olivares, Deena Elkafrawi and Giovanni Sisti, Department of Obstetrics and Gynaecology, New York Health and Hospitals/Lincoln Bronx, The Bronx, NY, USA Maddalena Morlando, Antonio Schiattarella, Nicola Colacurci and Pasquale De Franciscis, Department of Woman, Child and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy Ilaria Cataneo, Marinella Lenzi and Fabrizio Sandri, Unit of Obstetrics and Gynaecology, Ospedale Maggiore, Bologna, Italy Riccardo Buscemi, Giorgia Gattei, Francesca della Sala and Maria Cristina Rovellotti, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy Eleonora Valori, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy; Hospital Castelli, Verbania, Italy Elisa Done, Gilles Faron and Leonardo Gucciardo, UZ Brussel, Universitair Ziekenhuis, Brussel, Belgium Valentina Esposito, University of Milan, Milan, Italy Luigi Nappi, Felice Sorrentino and Lorenzo Vasciaveo, Department of Obstetrics and Gynaecology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy.
Published: 2021

6. Maternal and perinatal outcomes of pregnant women with SARS-CoV-2 infection

Author: Saccone, G. Sen, C. Di Mascio, D. Galindo, A. Grünebaum, A. Yoshimatsu, J. Stanojevic, M. Kurjak, A. Chervenak, F. Suárez, M.J.R. Gambacorti-Passerini, Z.M. de los Angeles Anaya Baz, M. Galán, E.V.A. López, Y.C. Luis, J.A.D.L. Hernández, I.C. Herraiz, I. Villalain, C. Venturella, R. Rizzo, G. Mappa, I. Gerosolima, G. Hellmeyer, L. Königbauer, J. Ameli, G. Frusca, T. Volpe, N. Schera, G.B.L. Fieni, S. Esposito, E. Simonazzi, G. Di Donna, G. Youssef, A. Gatta, A.N.D. Di Donna, M.C. Chiantera, V. Buono, N. Sozzi, G. Greco, P. Morano, D. Bianchi, B. Marino, M.G.L. Laraud, F. Ramone, A. Cagnacci, A. Barra, F. Gustavino, C. Ferrero, S. Ghezzi, F. Cromi, A. Laganà, A.S. Longo, V.L. Stollagli, F. Sirico, A. Lanzone, A. Driul, L. Cecchini, F. Xodo, S. Rodriguez, B. Mercado-Olivares, F. Elkafrawi, D. Sisti, G. Esposito, R. Coviello, A. Cerbone, M. Morlando, M. Schiattarella, A. Colacurci, N. De Franciscis, P. Cataneo, I. Lenzi, M. Sandri, F. Buscemi, R. Gattei, G. Sala, F.D. Valori, E. Rovellotti, M.C. Done, E. Faron, G. Gucciardo, L. Esposito, V. Vena, F. Giancotti, A. Brunelli, R. Muzii, L. Nappi, L. Sorrentino, F. Liberati, M. Buca, D. Leombroni, M. Di Sebastiano, F. Franchi, M. Ianniciello, Q.C. Garzon, S. Petriglia, G. Borrello, L. Nieto-Calvache, A.J. Burgos-Luna, J.M. Kadji, C. Carlin, A. Bevilacqua, E. Moucho, M. Viana Pinto, P. Figueiredo, R. Morales Roselló, J. Loscalzo, G. Martinez-Varea, A. Diago, V. Jimenez Lopez, J.S. Aykanat, A.Y. Cosma, S. Carosso, A. Benedetto, C. Bermejo, A. Feuerschuette, O.H.M. Uyaniklar, O. Ocakouglu, S.R. Atak, Z. Gündüz, R. Haberal, E.T. Froessler, B. Parange, A. Palm, P. Samardjiski, I. Taccaliti, C. Okuyan, E. Daskalakis, G. de Sa, R.A.M. Pittaro, A. Gonzalez-Duran, M.L. Guisan, A.C. Genç, S.Ö. Zlatohlávková, B. Piqueras, A.L. Oliva, D.E. Cil, A.P. Api, O. Antsaklis, P. Ples, L. Kyvernitakis, I. Maul, H. Malan, M. Lila, A. Granese, R. Ercoli, A. Zoccali, G. Villasco, A. Biglia, N. Madalina, C. Costa, E. Daelemans, C. Pintiaux, A. Cueto, E. Hadar, E. Dollinger, S. Brzezinski-Sinai, N.A. Huertas, E. Arango, P. Sanchez, A. Schvartzman, J.A. Cojocaru, L. Turan, S. Turan, O. Di Dedda, M.C. Molpeceres, R.G. Zdjelar, S. Premru-Srsen, T. Kornhauser-Cerar, L. Druškovic, M. De Robertis, V. Stefanovic, V. Nupponen, I. Nelskylä, K. Khodjaeva, Z. Gorina, K.A. Sukhikh, G.T. Maruotti, G.M. Visentin, S. Cosmi, E. Ferrari, J. Gatti, A. Luvero, D. Angioli, R. Puri, L. Palumbo, M. D'Urso, G. Colaleo, F. Rapisarda, A.M.C. Carbone, I.F. Manzoli, L. Flacco, M.E. Nazzaro, G. Locci, M. Guida, M. Sardo, A.D.S. Panici, P.B. Khalil, A. Berghella, V. Bifulco, G. Scambia, G. Zullo, F. D'Antonio, F. The WAPM (World Association of Perinatal Medicine) Working Group on COVID-19
Abstract: Objectives: To evaluate the maternal and perinatal outcomes of pregnancies affected by SARS-CoV-2 infection. Methods: This was a multinational retrospective cohort study including women with a singleton pregnancy and laboratory-confirmed SARS-CoV-2 infection, conducted in 72 centers in 22 different countries in Europe, the USA, South America, Asia and Australia, between 1 February 2020 and 30 April 2020. Confirmed SARS-CoV-2 infection was defined as a positive result on real-time reverse-transcription polymerase chain reaction (RT-PCR) assay of nasopharyngeal swab specimens. The primary outcome was a composite measure of maternal mortality and morbidity, including admission to the intensive care unit (ICU), use of mechanical ventilation and death. Results: In total, 388 women with a singleton pregnancy tested positive for SARS-CoV-2 on RT-PCR of a nasopharyngeal swab and were included in the study. Composite adverse maternal outcome was observed in 47/388 (12.1%) women; 43 (11.1%) women were admitted to the ICU, 36 (9.3%) required mechanical ventilation and three (0.8%) died. Of the 388 women included in the study, 122 (31.4%) were still pregnant at the time of data analysis. Among the other 266 women, six (19.4% of the 31 women with first-trimester infection) had miscarriage, three (1.1%) had termination of pregnancy, six (2.3%) had stillbirth and 251 (94.4%) delivered a liveborn infant. The rate of preterm birth before 37 weeks' gestation was 26.3% (70/266). Of the 251 liveborn infants, 69/251 (27.5%) were admitted to the neonatal ICU, and there were five (2.0%) neonatal deaths. The overall rate of perinatal death was 4.1% (11/266). Only one (1/251, 0.4%) infant, born to a mother who tested positive during the third trimester, was found to be positive for SARS-CoV-2 on RT-PCR. Conclusions: SARS-CoV-2 infection in pregnant women is associated with a 0.8% rate of maternal mortality, but an 11.1% rate of admission to the ICU. The risk of vertical transmission seems to be negligible. © 2020 International Society of Ultrasound in Obstetrics and Gynecology. © 2020 International Society of Ultrasound in Obstetrics and Gynecology
Published: 2021

7. Erratum: Risk factors associated with adverse fetal outcomes in pregnancies affected by Coronavirus disease 2019 (COVID-19): A secondary analysis of the WAPM study on COVID-19 (Journal of Perinatal Medicine (2020) 48:9 (950-958) DOI: 10.1515/jpm-2020-0355)

Author: Di Mascio, D. Sen, C. Saccone, G. Galindo, A. Grünebaum, A. Yoshimatsu, J. Stanojevic, M. Kurjak, A. Chervenak, F. Vena, F. Giancotti, A. Brunelli, R. Muzii, L. Panici, P.B. Mollo, A. Berghella, V. Flacco, M.E. Manzoli, L. Esposito, R. Coviello, A. Cerbone, M. Maruotti, G.M. Nazzaro, G. Locci, M. Guida, M. Di Spiezio Sardo, A. Bifulco, G. Zullo, F. Herraiz, I. Villalain, C. Suárez, M.J.R. Gambacorti-Passerini, Z.M. De Los Angeles Anaya Baz, M. Galán, E.V.A. Carbone, I.F. López, Y.C. De León Luis, J.A. Hernández, I.C. Venturella, R. Rizzo, G. Mappa, I. Gerosolima, G. Hellmeyer, L. Frusca, T. Volpe, N. Schera, G.B.L. Fieni, S. Esposito, E. Simonazzi, G. Di Donna, G. Youssef, A. Gatta, A.N.D. Di Donna, M.C. Chiantera, V. Buono, N. Sozzi, G. Greco, P. Morano, D. Bianchi, B. Marino, M.G.L. Laraud, F. Ramone, A. Cagnacci, A. Barra, F. Gustavino, C. Ferrero, S. Ghezzi, F. Cromi, A. Laganà, A.S. Longo, V.L. Stollagli, F. Puri, L. Sirico, A. Scambia, G. Lanzone, A. Driul, L. Fabiana Cecchini, D. Xodo, S. Rodriguez, B. Mercado-Olivares, F. Elkafrawi, D. Sisti, G. Morlando, M. Schiattarella, A. Colacurci, N. De Franciscis, P. Valori, E. Cataneo, I. Lenzi, M. Sandri, F. Buscemi, R. Gattei, G. Della Sala, F. Rovellotti, M.C. Done, E. Faron, G. Gucciardo, L. Luigi, N. Sorrentino, F. Vasciaveo, L. Liberati, M. Buca, D. Leombroni, M. Di Sebastiano, F. Di Tizio, L. D'Antonio, F. Gazzolo, D. Franchi, M. Ianniciello, Q.C. Garzon, S. Petriglia, G. Borrello, L. Nieto-Calvache, A.J. Burgos-Luna, J.M. Kadji, C. Carlin, A. Bevilacqua, E. Moucho, M. Pinto, P.V. Figueiredo, R. Roselló, J.M. Loscalzo, G. Martinez-Varea, A. Diago, V. Lopez, J.S.J. Aykanat, A.Y. Cosma, S. Carosso, A. Benedetto, C. Bermejo, A. Feuerschuette, O.H.M. Uyaniklar, O. Ocakouglu, S.R. Atak, Z. Gündüz, R. Haberal, E.T. Froessler, B. Parange, A. Palm, P. Samardjiski, I. Okuyan, E. Daskalakis, G. Antsaklis, P. De Sa, R.A.M. Pittaro, A. Gonzalez-Duran, M.L. Guisan, A.C. Genç, S.Ö. Zlatohlávková, B. Piqueras, A.L. Oliva, D.E. Cil, A.P. Api, O. Ples, L. Kyvernitakis, I. Lila, A. Granese, R. Ercoli, A. Zoccali, G. Villasco, A. Biglia, N. Madalina, C. Costa, E. Daelemans, C. Pintiaux, A. Cueto, E. Hadar, E. Dollinger, S. Sinai, N.A.B. Huertas, E. Arango, P. Sanchez, A. Schvartzman, J.A. Cojocaru, L. Turan, S. Turan, O. Di Dedda, M.C. Molpeceres, R.G. Zdjelar, S. Premru-Srsen, T. Cerar, L.K. Druškovic, M. De Robertis, V. Stefanovic, V. Nupponen, I. Nelskylä, K. Khodjaeva, Z. Gorina, K.A. Sukhikh, G.T. Visentin, S. Cosmi, E. Ferrari, J. Gatti, A. Luvero, D. Angioli, R. Palumbo, M. D'Urso, G. Colaleo, F. Rapisarda, A.M.C.
Abstract: Due to a technical error, the author list at the end of this article is unfortunately incorrect. Elif Gül Yapar Eyi is not a co-author, and therefore, his name and affiliation should not appear in the list. The correct author list and affiliations read as follows: Daniele Di Mascio, Cihat Sen, Gabriele Saccone, Alberto Galindo, Amos Grünebaum, Jun Yoshimatsu, Milan Stanojevic, AsimKurjak, Frank Chervenak, María Jos´e Rodríguez Suárez, Zita Maria Gambacorti-Passerini, María de los Angeles Anaya Baz, Esther Vanessa Aguilar Galán, Yolanda Cuñarro López, Juan Antonio De León Luis, Ignacio Cueto Hernández, Ignacio Herraiz, Cecilia Villalain, Roberta Venturella, Giuseppe Rizzo, Ilenia Mappa, Giovanni Gerosolima, Lars Hellmeyer, Josefine Königbauer, Giada Ameli, Tiziana Frusca, Nicola Volpe, Giovanni Battista Luca Schera, Stefania Fieni, Eutalia Esposito, Giuliana Simonazzi, Gaetana Di Donna, Aly Youssef, Anna Nunzia Della Gatta, Mariano Catello Di Donna, Vito Chiantera, Natalina Buono, Giulio Sozzi, Pantaleo Greco, Danila Morano, Beatrice Bianchi, Maria Giulia Lombana Marino, Federica Laraud, Arianna Ramone, Angelo Cagnacci, Fabio Barra, Claudio Gustavino, Simone Ferrero, Fabio Ghezzi, Antonella Cromi, Antonio Simone Laganá, Valentina Laurita Longo, Francesca Stollagli, Angelo Sirico, Antonio Lanzone, Lorenza Driul, Fabiana Cecchini D, Serena Xodo, Brian Rodriguez, Felipe Mercado-Olivares, Deena Elkafrawi, Giovanni Sisti, Rosanna Esposito, Antonio Coviello, Marco Cerbone, Maddalena Morlando, Antonio Schiattarella, Nicola Colacurci, Pasquale De Franciscis, Ilaria Cataneo, Marinella Lenzi, Fabrizio Sandri, Riccardo Buscemi, Giorgia Gattei, Francesca della Sala, Eleonora Valori, Maria Cristina Rovellotti, Elisa Done, Gilles Faron, Leonardo Gucciardo, Valentina Esposito, Flaminia Vena, Antonella Giancotti, Roberto Brunelli, Ludovico Muzii, Luigi Nappi, Felice Sorrentino, Lorenzo Vasciaveo, Marco Liberati, Danilo Buca, Martina Leombroni, Francesca Di Sebastiano, Luciano Di Tizio, Diego Gazzolo, Massimo Franchi, Quintino Cesare Ianniciello, Simone Garzon, Giuliano Petriglia, Leonardo Borrello, Albaro Jos´e Nieto-Calvache, Juan Manuel Burgos-Luna, Caroline Kadji, Andrew Carlin, Elisa Bevilacqua, Marina Moucho, Pedro Viana Pinto, Rita Figueiredo, Jos´e Morales Roselló, Gabriela Loscalzo, Alicia Martinez-Varea, Vincente Diago, Jesús S Jimenez Lopez, Alicia Yeliz Aykanat, Stefano Cosma, Andrea Carosso, Chiara Benedetto, Amanda Bermejo, Otto Henrique May Feuerschuette, Ozlem Uyaniklar, Sakine Rahimli Ocakouglu, Zeliha Atak, Reyhan Gündüz, Esra Tustas Haberal, Bernd Froessler, Anupam Parange, Peter Palm, Igor Samardjiski, Chiara Taccaliti, Erhan Okuyan, George Daskalakis, Renato Augusto Moreira de Sa, Alejandro Pittaro, Maria Luisa Gonzalez-Duran, Ana Concheiro Guisan, Serife Özlem Genç, Blanka Zlatohlávková, Anna Luengo Piqueras, Dolores Esteban Oliva, Aylin Pelin Cil, Olus Api, Panos Antsaklis, Liana Ples, Ioannis Kyvernitakis, Holger Maul, Marcel Malan, Albert Lila, Roberta Granese, Alfredo Ercoli, Giuseppe Zoccali, Andrea Villasco, Nicoletta Biglia, Ciuhodaru Madalina, Elena Costa, Caroline Daelemans, Axelle Pintiaux, Elisa Cueto, Eran Hadar, Sarah Dollinger, Noa A. Brzezinski Sinai, Erasmo Huertas, Pedro Arango, Amadeo Sanchez, Javier Alfonso Schvartzman, Liviu Cojocaru, Sifa Turan, Ozhan Turan, Maria Carmela Di Dedda, Rebeca Garrote Molpeceres, Snezana Zdjelar, Tanja Premru-Srsen, Lilijana Kornhauser Cerar, Mirjam Druškovic, Valentina De Robertis, Vedran Stefanovic, Irmeli Nupponen, Kaisa Nelskylä, Zulfiya Khodjaeva, Ksenia A. Gorina, Gennady T. Sukhikh, Giuseppe Maria Maruotti, Silvia Visentin, Erich Cosmi, Jacopo Ferrari, Alessandra Gatti, Daniela Luvero, Roberto Angioli, Ludovica Puri, Marco Palumbo, Giusella D’Urso, Francesco Colaleo, Agnese Maria Chiara Rapisarda, Ilma Floriana Carbone, Antonio Mollo, Giovanni Nazzaro, Mariavittoria Locci, Maurizio Guida, Attilio Di Spiezio Sardo, Pierluigi Benedetti Panici, Vincenzo Berghella, Maria Elena Flacco, Lamberto Manzoli, Giuseppe Bifulco, Giovanni Scambia, Fulvio Zullo and Francesco D’Antonio Flaminia Vena, Antonella Giancotti, Roberto Brunelli, Ludovico Muzii and Pierluigi Benedetti Panici, Department of Maternal and Child Health and Urological Sciences, Sapienza University of Rome, Rome, Italy Rosanna Esposito, Antonio Coviello, Marco Cerbone, Giuseppe Maria Maruotti, Giovanni Nazzaro, Mariavittoria Locci, Maurizio Guida, Attilio Di Spiezio Sardo, Giuseppe Bifulco and Fulvio Zullo, Department of Neuroscience, Reproductive Sciences and Dentistry, School of Medicine, University of Naples Federico II, Naples, Italy Ignacio Herraiz and Cecilia Villalain, Department of Obstetrics and Gynaecology, Fetal Medicine Unit, Maternal and Child Health and Development Network, University Hospital 12 de Octubre, Complutense University of Madrid, Madrid, Spain María Jos´e Rodríguez Suárez, Hospital Universitario Central de Asturias, Asturias, Spain Zita Maria Gambacorti-Passerini, Department of Obstetrics and Gynaecology, Ciudad Real University General Hospital, Ciudad Real, Spain María de los Angeles Anaya Baz and Esther Vanessa Aguilar Galán, Department of Obstetrics and Gynaecology, Ciudad Real University General Hospital, Ciudad Real, Spain; University of Castilla-La Mancha, Ciudad Real, Spain Yolanda Cuñarro López, Juan Antonio De León Luis and Ignacio Cueto Hernández, Department of Obstetrics and Gynaecology, Fetal Medicine Unit, Maternal and Child Health and Development Network, Gregorio Marañón Hospital, Complutense University of Madrid, Madrid, Spain Roberta Venturella, Department of Obstetrics and Gynaecology, School of Medicine, Magna Graecia University of Catanzaro, Catanzaro, Italy Giuseppe Rizzo, University of Roma Tor Vergata, Division of Maternal Fetal Medicine, Ospedale Cristo Re Roma, Rome, Italy; Department of Obstetrics and Gynaecology, The First I.M. Sechenov Moscow State Medical University, Moscow, Russia Ilenia Mappa, University of Roma Tor Vergata, Division of Maternal Fetal Medicine, Ospedale Cristo Re Roma, Rome, Italy Giovanni Gerosolima, Department of Obstetrics and Gynaecology, Ospedale AOSG Moscati, Avellino, Italy Lars Hellmeyer, Josefine Königbauer and Giada Ameli, Department of Gynaecology and Obstetrics, Vivantes Klinikum im Friedrichshain, Berlin, Germany Tiziana Frusca, Nicola Volpe, Giovanni Battista Luca Schera and Stefania Fieni, Department of Obstetrics and Gynaecology, University of Parma, Parma, Italy Eutalia Esposito, Department of Obstetrics and Gynaecology, Ospedale di San Leonardo, Castellammare di Stabia, Italy Giuliana Simonazzi, Gaetana Di Donna, Aly Youssef and Anna Nunzia Della Gatta, Department of Obstetrics and Gynaecology, University of Bologna, Sant’Orsola- Malpighi University Hospital, Bologna, Italy Mariano Catello Di Donna, Vito Chiantera, Natalina Buono and Giulio Sozzi, Department of Gynaecologic Oncology, University of Palermo, Palermo, Sicilia, Italy Pantaleo Greco, Danila Morano, Beatrice Bianchi and Maria Giulia Lombana Marino, Department ofMedical Sciences, Section of Obstetrics and Gynaecology, Azienda Ospedaliera-Universitaria Sant’Anna, University of Ferrara, Ferrara, Italy Federica Laraud, Arianna Ramone, Angelo Cagnacci, Fabio Barra, Claudio Gustavino and Simone Ferrero, Academic Unit of Obstetrics and Gynaecology, IRCCS Ospedale Policlinico, San Martino, Genova, Italy Fabio Ghezzi, Antonella Cromi and Antonio Simone Laganà, Department of Obstetrics and Gynaecology, “Filippo Del Ponte” Hospita University of Insubria, Varese, Italy Valentina Laurita Longo, Department of Obstetrics and Gynaecology, Fondazione Policlinico Universitario A Gemelli IRCCS – Università Cattolica del Sacro Cuore, Rome, Italy; Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Rome, Italy; and Queen Margaret University, Institute for Global Health and Development, Edinburgh, UK Francesca Stollagli and Ludovica Puri, Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Rome, Italy Angelo Sirico and Giovanni Scambia, Department of Obstetrics and Gynaecology, Fondazione Policlinico Universitario A Gemelli IRCCS – Università Cattolica del Sacro Cuore, Rome, Italy Antonio Lanzone, Department of Obstetrics and Gynaecology, Fondazione Policlinico Universitario A Gemelli IRCCS – Università Cattolica del Sacro Cuore, Rome, Italy; Istituto di Clinica Ostetrica e Ginecologica, Università Cattolica del Sacro Cuore, Rome, Italy Lorenza Driul, Fabiana Cecchini D and Serena Xodo, Clinic of Obstetrics and Gynaecology, University of Udine, Udine, Italy Brian Rodriguez, Felipe Mercado-Olivares, Deena Elkafrawi and Giovanni Sisti, Department of Obstetrics and Gynaecology, New York Health and Hospitals/Lincoln Bronx, The Bronx, NY, USA Maddalena Morlando, Antonio Schiattarella, Nicola Colacurci and Pasquale De Franciscis, Department of Woman, Child and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy Ilaria Cataneo, Marinella Lenzi and Fabrizio Sandri, Unit of Obstetrics and Gynaecology, Ospedale Maggiore, Bologna, Italy Riccardo Buscemi, Giorgia Gattei, Francesca della Sala and Maria Cristina Rovellotti, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy Eleonora Valori, Department of Translational Medicine, University of Eastern Piedmont, Novara, Italy; Hospital Castelli, Verbania, Italy Elisa Done, Gilles Faron and Leonardo Gucciardo, UZ Brussel, Universitair Ziekenhuis, Brussel, Belgium Valentina Esposito, University of Milan, Milan, Italy Luigi Nappi, Felice Sorrentino and Lorenzo Vasciaveo, Department of Obstetrics and Gynaecology, Department of Medical and Surgical Sciences, University of Foggia, Foggia, Italy. © 2021 De Gruyter. All rights reserved.
Published: 2021

8. Maternal and perinatal outcomes in high compared to low risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection (phase 2): the World Association of Perinatal Medicine working group on coronavirus disease 2019

Author: D'Antonio, F. Sen, C. Mascio, D.D. Galindo, A. Villalain, C. Herraiz, I. Arisoy, R. Ovayolu, A. Eroğlu, H. Canales, M.G. Ladella, S. Cojocaru, L. Turan, O. Turan, S. Hadar, E. Brzezinski-Sinai, N.A. Dollinger, S. Uyaniklar, O. Ocakouglu, S.R. Atak, Z. Premru-Srsen, T. Kornhauser-Cerar, L. Druškovič, M. Ples, L. Gündüz, R. Ağaçayak, E. Schvartzman, J.A. Malbran, M.N. Liberati, M. Sebastiano, F.D. Oronzi, L. Cerra, C. Buca, D. Cagnacci, A. Ramone, A. Barra, F. Carosso, A. Benedetto, C. Cosma, S. Pintiaux, A. Daelemans, C. Costa, E. Özel, A. Muhçu, M. Lopez, J.S.J. Alvarado, C. Piqueras, A.L. Oliva, D.E. Schera, G.B.L. Volpe, N. Frusca, T. Samardjiski, I. Simeonova, S. Papestiev, I.A. Hojman, J. Turkcuoglu, I. Cromi, A. Laganà, A.S. Ghezzi, F. Sirico, A. Familiari, A. Scambia, G. Sukhikh, Z.K.G.T. Gorina, K.A. de Sa, R.A.M. Vaz, M. Feuerschuette, O.H.M. Gatta, A.N.D. Youssef, A. Donna, G.D. Martinez-Varea, A. Loscalzo, G. Roselló, J.M. Stefanovic, V. Nupponen, I. Nelskylä, K. Ayala, R. Molpeceres, R.G. Vázquez, A.P. Sandri, F. Cataneo, I. Lenzi, M. Haberal, E.T. Huertas, E. Sanchez, A. Arango, P. Bermejo, A. Alcantara, M.M.G. Göynümer, G. Okuyan, E. Madalina, C. Guisan, A.C. Schulte, A.M. Esposito, V. De Robertis, V. Zdjelar, S. Lackovic, M. Mihajlovic, S. Jekova, N. Saccone, G. Aslan, M.M. Dedda, M.C.D. Chalid, M. Canache, J.E.M. Daskalakis, G. Antsaklis, P. Vega, E.C. Cueto, E. Taccaliti, C. Aykanat, Y. Özlem Genç, Ş. Froessler, B. Radulova, P.A. Morano, D. Bianchi, B. Marino, M.G.L. Meccariello, G. Rohatgi, B. Schiattarella, A. Morlando, M. Colacurci, N. Villasco, A. Biglia, N. Marques, A.L.S. Gatti, A. Luvero, D. Angioli, R. Pittaro, A. Lila, A. Zlatohlávková, B. On the behalf of the World Association of Perinatal Medicine working group on coronavirus disease 2019
Abstract: BACKGROUND: It has still to be ascertained whether severe acute respiratory syndrome coronavirus 2 infection in pregnancy is associated with worse maternal and fetal outcomes compared to low risk gestations. OBJECTIVE: This study aimed to evaluate maternal and perinatal outcomes in high- and low-risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection. STUDY DESIGN: This was a multinational retrospective cohort study involving women with laboratory-confirmed severe acute respiratory syndrome coronavirus 2 infection from 76 centers from 25 countries in Europe, the United States, South America, Asia, and Australia from April 4, 2020, to October 28, 2020. The primary outcome was a composite measure of maternal mortality and morbidity, including admission to the intensive care unit, use of mechanical ventilation, or death. The secondary outcome was a composite measure of adverse perinatal outcome, including miscarriage, fetal loss, neonatal and perinatal death, and admission to the neonatal intensive care unit. All outcomes were assessed in high- and low-risk pregnancies. Pregnancies were considered high risk in case of either preexisting chronic medical conditions in pregnancy or obstetrical disorders occurring in pregnancy. The Fisher exact test and logistic regression analysis were used to analyze the data. RESULTS: A total of 887 singleton pregnancies who tested positive for severe acute respiratory syndrome coronavirus 2 infection using reverse transcription-polymerase chain reaction of nasal and pharyngeal swab specimens were included in the study. The risk of composite adverse maternal outcomes was higher in high-risk pregnancies than in low-risk pregnancies (odds ratio, 1.52; 95% confidence interval, 1.03–2.24; P=.035). In addition, women carrying high-risk pregnancies were at higher risk of hospital admission (odds ratio, 1.48; 95% confidence interval, 1.07–2.04; P=.002), presence of severe respiratory symptoms (odds ratio, 2.13; 95% confidence interval, 0.41–3.21; P=.001), admission to the intensive care unit (odds ratio, 2.63; 95% confidence interval, 1.42–4.88), and invasive mechanical ventilation (odds ratio, 2.65; 95% confidence interval, 1.19–5.94; P=.002). When exploring perinatal outcomes, high-risk pregnancies were at high risk of adverse perinatal outcomes (odds ratio, 1.78; 95% confidence interval, 0.15–2.72; P=.009). However, such association was mainly because of the higher incidence of miscarriage in high-risk pregnancies compared with that in low-risk pregnancies (5.3% vs 1.6%, P=.008); furthermore, there was no difference in other explored outcomes between the 2 study groups. At logistic regression analysis, maternal age (odds ratio, 1.12; 95% confidence interval, 1.02–1.22; P=.023) and high-risk pregnancy (odds ratio, 4.21; 95% confidence interval, 3.90–5.11; P
Published: 2021

9. Maternal and perinatal outcomes of pregnant women with SARS-CoV-2 infection

Author: Saccone, G. Sen, C. Di Mascio, D. Galindo, A. Grünebaum, A. Yoshimatsu, J. Stanojevic, M. Kurjak, A. Chervenak, F. Suárez, M.J.R. Gambacorti-Passerini, Z.M. de los Angeles Anaya Baz, M. Galán, E.V.A. López, Y.C. Luis, J.A.D.L. Hernández, I.C. Herraiz, I. Villalain, C. Venturella, R. Rizzo, G. Mappa, I. Gerosolima, G. Hellmeyer, L. Königbauer, J. Ameli, G. Frusca, T. Volpe, N. Schera, G.B.L. Fieni, S. Esposito, E. Simonazzi, G. Di Donna, G. Youssef, A. Gatta, A.N.D. Di Donna, M.C. Chiantera, V. Buono, N. Sozzi, G. Greco, P. Morano, D. Bianchi, B. Marino, M.G.L. Laraud, F. Ramone, A. Cagnacci, A. Barra, F. Gustavino, C. Ferrero, S. Ghezzi, F. Cromi, A. Laganà, A.S. Longo, V.L. Stollagli, F. Sirico, A. Lanzone, A. Driul, L. Cecchini, F. Xodo, S. Rodriguez, B. Mercado-Olivares, F. Elkafrawi, D. Sisti, G. Esposito, R. Coviello, A. Cerbone, M. Morlando, M. Schiattarella, A. Colacurci, N. De Franciscis, P. Cataneo, I. Lenzi, M. Sandri, F. Buscemi, R. Gattei, G. Sala, F.D. Valori, E. Rovellotti, M.C. Done, E. Faron, G. Gucciardo, L. Esposito, V. Vena, F. Giancotti, A. Brunelli, R. Muzii, L. Nappi, L. Sorrentino, F. Liberati, M. Buca, D. Leombroni, M. Di Sebastiano, F. Franchi, M. Ianniciello, Q.C. Garzon, S. Petriglia, G. Borrello, L. Nieto-Calvache, A.J. Burgos-Luna, J.M. Kadji, C. Carlin, A. Bevilacqua, E. Moucho, M. Viana Pinto, P. Figueiredo, R. Morales Roselló, J. Loscalzo, G. Martinez-Varea, A. Diago, V. Jimenez Lopez, J.S. Aykanat, A.Y. Cosma, S. Carosso, A. Benedetto, C. Bermejo, A. Feuerschuette, O.H.M. Uyaniklar, O. Ocakouglu, S.R. Atak, Z. Gündüz, R. Haberal, E.T. Froessler, B. Parange, A. Palm, P. Samardjiski, I. Taccaliti, C. Okuyan, E. Daskalakis, G. de Sa, R.A.M. Pittaro, A. Gonzalez-Duran, M.L. Guisan, A.C. Genç, S.Ö. Zlatohlávková, B. Piqueras, A.L. Oliva, D.E. Cil, A.P. Api, O. Antsaklis, P. Ples, L. Kyvernitakis, I. Maul, H. Malan, M. Lila, A. Granese, R. Ercoli, A. Zoccali, G. Villasco, A. Biglia, N. Madalina, C. Costa, E. Daelemans, C. Pintiaux, A. Cuet and Saccone, G. Sen, C. Di Mascio, D. Galindo, A. Grünebaum, A. Yoshimatsu, J. Stanojevic, M. Kurjak, A. Chervenak, F. Suárez, M.J.R. Gambacorti-Passerini, Z.M. de los Angeles Anaya Baz, M. Galán, E.V.A. López, Y.C. Luis, J.A.D.L. Hernández, I.C. Herraiz, I. Villalain, C. Venturella, R. Rizzo, G. Mappa, I. Gerosolima, G. Hellmeyer, L. Königbauer, J. Ameli, G. Frusca, T. Volpe, N. Schera, G.B.L. Fieni, S. Esposito, E. Simonazzi, G. Di Donna, G. Youssef, A. Gatta, A.N.D. Di Donna, M.C. Chiantera, V. Buono, N. Sozzi, G. Greco, P. Morano, D. Bianchi, B. Marino, M.G.L. Laraud, F. Ramone, A. Cagnacci, A. Barra, F. Gustavino, C. Ferrero, S. Ghezzi, F. Cromi, A. Laganà, A.S. Longo, V.L. Stollagli, F. Sirico, A. Lanzone, A. Driul, L. Cecchini, F. Xodo, S. Rodriguez, B. Mercado-Olivares, F. Elkafrawi, D. Sisti, G. Esposito, R. Coviello, A. Cerbone, M. Morlando, M. Schiattarella, A. Colacurci, N. De Franciscis, P. Cataneo, I. Lenzi, M. Sandri, F. Buscemi, R. Gattei, G. Sala, F.D. Valori, E. Rovellotti, M.C. Done, E. Faron, G. Gucciardo, L. Esposito, V. Vena, F. Giancotti, A. Brunelli, R. Muzii, L. Nappi, L. Sorrentino, F. Liberati, M. Buca, D. Leombroni, M. Di Sebastiano, F. Franchi, M. Ianniciello, Q.C. Garzon, S. Petriglia, G. Borrello, L. Nieto-Calvache, A.J. Burgos-Luna, J.M. Kadji, C. Carlin, A. Bevilacqua, E. Moucho, M. Viana Pinto, P. Figueiredo, R. Morales Roselló, J. Loscalzo, G. Martinez-Varea, A. Diago, V. Jimenez Lopez, J.S. Aykanat, A.Y. Cosma, S. Carosso, A. Benedetto, C. Bermejo, A. Feuerschuette, O.H.M. Uyaniklar, O. Ocakouglu, S.R. Atak, Z. Gündüz, R. Haberal, E.T. Froessler, B. Parange, A. Palm, P. Samardjiski, I. Taccaliti, C. Okuyan, E. Daskalakis, G. de Sa, R.A.M. Pittaro, A. Gonzalez-Duran, M.L. Guisan, A.C. Genç, S.Ö. Zlatohlávková, B. Piqueras, A.L. Oliva, D.E. Cil, A.P. Api, O. Antsaklis, P. Ples, L. Kyvernitakis, I. Maul, H. Malan, M. Lila, A. Granese, R. Ercoli, A. Zoccali, G. Villasco, A. Biglia, N. Madalina, C. Costa, E. Daelemans, C. Pintiaux, A. Cuet
Abstract: Objectives: To evaluate the maternal and perinatal outcomes of pregnancies affected by SARS-CoV-2 infection. Methods: This was a multinational retrospective cohort study including women with a singleton pregnancy and laboratory-confirmed SARS-CoV-2 infection, conducted in 72 centers in 22 different countries in Europe, the USA, South America, Asia and Australia, between 1 February 2020 and 30 April 2020. Confirmed SARS-CoV-2 infection was defined as a positive result on real-time reverse-transcription polymerase chain reaction (RT-PCR) assay of nasopharyngeal swab specimens. The primary outcome was a composite measure of maternal mortality and morbidity, including admission to the intensive care unit (ICU), use of mechanical ventilation and death. Results: In total, 388 women with a singleton pregnancy tested positive for SARS-CoV-2 on RT-PCR of a nasopharyngeal swab and were included in the study. Composite adverse maternal outcome was observed in 47/388 (12.1%) women; 43 (11.1%) women were admitted to the ICU, 36 (9.3%) required mechanical ventilation and three (0.8%) died. Of the 388 women included in the study, 122 (31.4%) were still pregnant at the time of data analysis. Among the other 266 women, six (19.4% of the 31 women with first-trimester infection) had miscarriage, three (1.1%) had termination of pregnancy, six (2.3%) had stillbirth and 251 (94.4%) delivered a liveborn infant. The rate of preterm birth before 37 weeks' gestation was 26.3% (70/266). Of the 251 liveborn infants, 69/251 (27.5%) were admitted to the neonatal ICU, and there were five (2.0%) neonatal deaths. The overall rate of perinatal death was 4.1% (11/266). Only one (1/251, 0.4%) infant, born to a mother who tested positive during the third trimester, was found to be positive for SARS-CoV-2 on RT-PCR. Conclusions: SARS-CoV-2 infection in pregnant women is associated with a 0.8% rate of maternal mortality, but an 11.1% rate of admission to the ICU. The risk of vertical transmission se
Published: 2021

10. Defining definitions: a Delphi study to develop a core outcome set for conditions of severe maternal morbidity

Author: Schaap, T, Bloemenkamp, K, Deneux-Tharaux, C, Knight, M, Langhoff-Roos, J, Sullivan, E, van den Akker, T, Rigouzzo, A, Kristufkova, A, Creanga, A, Koopman, A, Gemert, V, Tapper, AM, Dijkman, A, Kwee, A, Franx, A, Veersema, B, Nemethova, B, Seelbach-Göbel, B, Bateman, B, Daelemans, C, Zelop, C, Andersson, C, Nagata, C, Farquhar, C, Huisman, C, von Kaisenberg, C, Henriquez, D, Ellwood, D, Moolenaar, D, Tuffnell, D, Kuklina, E, Main, E, Woods, E, Stekkinger, E, Gollo, E, Goffinet, F, Kainer, F, Mantel, G, Stralen, G, Kayem, G, Duvekot, H, Franz, HBG, Engjom, H, Beenakkers, I, Al-Zirqi, I, Danis, J, Berlac, F, Kurinczuk, J, Langhof-Roos, J, Zwart, J, Roosmalen, J, Klungsor, K, Lust, K, Vetter, K, Calsteren, K, Roelens, K, Krebs, L, Colmorn, B, MacKillop, L, Tanaka, M, Rijken, M, Bonnet, MP, Boer, M, Jokinen, M, Belfort, M, Peek, M, Gisler, M, Foley, M, Tikkanen, M, Korbel, M, Dugatova, M, Laubach, M, Schuitemaker, N, Engel, N, McDonnell, N, Emonts, P, Rozenberg, P, Hillemanns, P, Rauskolb, R, Takeda, S, Donati, S, Ferrazzani, S, Matsubara, S, Saito, S, Jesudason, S, Satoh, S, Vangen, S, Clark, S, Koenen, S, Grüßner, S, Miyashita, S, Fischer, T, Todros, T, Harskamp, V, Mijatovic, V, Basevi, V, Pollock, W, Callaghan, W, Schaap, T, Bloemenkamp, K, Deneux-Tharaux, C, Knight, M, Langhoff-Roos, J, Sullivan, E, van den Akker, T, Rigouzzo, A, Kristufkova, A, Creanga, A, Koopman, A, Gemert, V, Tapper, AM, Dijkman, A, Kwee, A, Franx, A, Veersema, B, Nemethova, B, Seelbach-Göbel, B, Bateman, B, Daelemans, C, Zelop, C, Andersson, C, Nagata, C, Farquhar, C, Huisman, C, von Kaisenberg, C, Henriquez, D, Ellwood, D, Moolenaar, D, Tuffnell, D, Kuklina, E, Main, E, Woods, E, Stekkinger, E, Gollo, E, Goffinet, F, Kainer, F, Mantel, G, Stralen, G, Kayem, G, Duvekot, H, Franz, HBG, Engjom, H, Beenakkers, I, Al-Zirqi, I, Danis, J, Berlac, F, Kurinczuk, J, Langhof-Roos, J, Zwart, J, Roosmalen, J, Klungsor, K, Lust, K, Vetter, K, Calsteren, K, Roelens, K, Krebs, L, Colmorn, B, MacKillop, L, Tanaka, M, Rijken, M, Bonnet, MP, Boer, M, Jokinen, M, Belfort, M, Peek, M, Gisler, M, Foley, M, Tikkanen, M, Korbel, M, Dugatova, M, Laubach, M, Schuitemaker, N, Engel, N, McDonnell, N, Emonts, P, Rozenberg, P, Hillemanns, P, Rauskolb, R, Takeda, S, Donati, S, Ferrazzani, S, Matsubara, S, Saito, S, Jesudason, S, Satoh, S, Vangen, S, Clark, S, Koenen, S, Grüßner, S, Miyashita, S, Fischer, T, Todros, T, Harskamp, V, Mijatovic, V, Basevi, V, Pollock, W, and Callaghan, W
Abstract: © 2017 Royal College of Obstetricians and Gynaecologists Objective: Develop a core outcome set of international consensus definitions for severe maternal morbidities. Design: Electronic Delphi study. Setting: International. Population: Eight expert panels. Methods: All 13 high-income countries represented in the International Network of Obstetric Surveillance Systems (INOSS) nominated five experts per condition of morbidity, who submitted possible definitions. From these suggestions, a steering committee distilled critical components: eclampsia: 23, amniotic fluid embolism: 15, pregnancy-related hysterectomy: 11, severe primary postpartum haemorrhage: 19, uterine rupture: 20, abnormally invasive placentation: 12, spontaneous haemoperitoneum in pregnancy: 16, and cardiac arrest in pregnancy: 10. These components were assessed by the expert panel using a 5-point Likert scale, following which a framework for an encompassing definition was constructed. Possible definitions were evaluated in rounds until a rate of agreement of more than 70% was reached. Expert commentaries were used in each round to improve definitions. Main outcome measures: Definitions with a rate of agreement of more than 70%. Results: The invitation to participate in one or more of eight Delphi processes was accepted by 103 experts from 13 high-income countries. Consensus definitions were developed for all of the conditions. Conclusion: Consensus definitions for eight morbidity conditions were successfully developed using the Delphi process. These should be used in national registrations and international studies, and should be taken up by the Core Outcomes in Women's and Newborn Health initiative. Tweetable abstract: Consensus definitions for eight morbidity conditions were successfully developed using the Delphi process.
Published: 2019

11. Defining definitions: a Delphi study to develop a core outcome set for conditions of severe maternal morbidity

Author: Schaap, T, Bloemenkamp, K, Deneux-Tharaux, C, Knight, M, Langhoff-Roos, J, Sullivan, E, van den Akker, T, Rigouzzo, A, Kristufkova, A, Creanga, A, Koopman, A, Gemert, V, Tapper, AM, Dijkman, A, Kwee, A, Franx, A, Veersema, B, Nemethova, B, Seelbach-Göbel, B, Bateman, B, Daelemans, C, Zelop, C, Andersson, C, Nagata, C, Farquhar, C, Huisman, C, von Kaisenberg, C, Henriquez, D, Ellwood, D, Moolenaar, D, Tuffnell, D, Kuklina, E, Main, E, Woods, E, Stekkinger, E, Gollo, E, Goffinet, F, Kainer, F, Mantel, G, Stralen, G, Kayem, G, Duvekot, H, Franz, HBG, Engjom, H, Beenakkers, I, Al-Zirqi, I, Danis, J, Berlac, F, Kurinczuk, J, Langhof-Roos, J, Zwart, J, Roosmalen, J, Klungsor, K, Lust, K, Vetter, K, Calsteren, K, Roelens, K, Krebs, L, Colmorn, B, MacKillop, L, Tanaka, M, Rijken, M, Bonnet, MP, Boer, M, Jokinen, M, Belfort, M, Peek, M, Gisler, M, Foley, M, Tikkanen, M, Korbel, M, Dugatova, M, Laubach, M, Schuitemaker, N, Engel, N, McDonnell, N, Emonts, P, Rozenberg, P, Hillemanns, P, Rauskolb, R, Takeda, S, Donati, S, Ferrazzani, S, Matsubara, S, Saito, S, Jesudason, S, Satoh, S, Vangen, S, Clark, S, Koenen, S, Grüßner, S, Miyashita, S, Fischer, T, Todros, T, Harskamp, V, Mijatovic, V, Basevi, V, Pollock, W, and Callaghan, W
Subjects: Embolism, Amniotic Fluid, Placenta Diseases, Consensus, Delphi Technique, Quality Assurance, Health Care, International Cooperation, Developed Countries, education, Postpartum Hemorrhage, Pregnancy Complications, Cardiovascular, Hysterectomy, Severity of Illness Index, Heart Arrest, Pregnancy Complications, Outcome Assessment (Health Care), Uterine Rupture, Pregnancy, Hemoperitoneum, Outcome Assessment, Health Care, Humans, Eclampsia, Female, Obstetrics & Reproductive Medicine
Abstract: © 2017 Royal College of Obstetricians and Gynaecologists Objective: Develop a core outcome set of international consensus definitions for severe maternal morbidities. Design: Electronic Delphi study. Setting: International. Population: Eight expert panels. Methods: All 13 high-income countries represented in the International Network of Obstetric Surveillance Systems (INOSS) nominated five experts per condition of morbidity, who submitted possible definitions. From these suggestions, a steering committee distilled critical components: eclampsia: 23, amniotic fluid embolism: 15, pregnancy-related hysterectomy: 11, severe primary postpartum haemorrhage: 19, uterine rupture: 20, abnormally invasive placentation: 12, spontaneous haemoperitoneum in pregnancy: 16, and cardiac arrest in pregnancy: 10. These components were assessed by the expert panel using a 5-point Likert scale, following which a framework for an encompassing definition was constructed. Possible definitions were evaluated in rounds until a rate of agreement of more than 70% was reached. Expert commentaries were used in each round to improve definitions. Main outcome measures: Definitions with a rate of agreement of more than 70%. Results: The invitation to participate in one or more of eight Delphi processes was accepted by 103 experts from 13 high-income countries. Consensus definitions were developed for all of the conditions. Conclusion: Consensus definitions for eight morbidity conditions were successfully developed using the Delphi process. These should be used in national registrations and international studies, and should be taken up by the Core Outcomes in Women's and Newborn Health initiative. Tweetable abstract: Consensus definitions for eight morbidity conditions were successfully developed using the Delphi process.
Published: 2017

12. Antenatal Diagnosis of Isolated Total Arhinia in the Second Trimester of Pregnancy

Author: Leroy, D., primary, Slachmuylder, E., additional, Popijn, M., additional, Cassart, M., additional, Massez, A., additional, D'Haene, N., additional, Désir, J., additional, Vandermaelen, A., additional, Daelemans, C., additional, Ceysens, G., additional, and Donner, C., additional
Published: 2016
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13. High-throughput analysis of candidate imprinted genes and allele-specific gene expression in the human term placenta

Author: Daelemans, C, Ritchie, ME, Smits, G, Abu-Amero, S, Sudbery, IM, Forrest, MS, Campino, S, Clark, TG, Stanier, P, Kwiatkowski, D, Deloukas, P, Dermitzakis, ET, Tavare, S, Moore, GE, Dunham, I, Daelemans, C, Ritchie, ME, Smits, G, Abu-Amero, S, Sudbery, IM, Forrest, MS, Campino, S, Clark, TG, Stanier, P, Kwiatkowski, D, Deloukas, P, Dermitzakis, ET, Tavare, S, Moore, GE, and Dunham, I
Abstract: BACKGROUND: Imprinted genes show expression from one parental allele only and are important for development and behaviour. This extreme mode of allelic imbalance has been described for approximately 56 human genes. Imprinting status is often disrupted in cancer and dysmorphic syndromes. More subtle variation of gene expression, that is not parent-of-origin specific, termed 'allele-specific gene expression' (ASE) is more common and may give rise to milder phenotypic differences. Using two allele-specific high-throughput technologies alongside bioinformatics predictions, normal term human placenta was screened to find new imprinted genes and to ascertain the extent of ASE in this tissue. RESULTS: Twenty-three family trios of placental cDNA, placental genomic DNA (gDNA) and gDNA from both parents were tested for 130 candidate genes with the Sequenom MassArray system. Six genes were found differentially expressed but none imprinted. The Illumina ASE BeadArray platform was then used to test 1536 SNPs in 932 genes. The array was enriched for the human orthologues of 124 mouse candidate genes from bioinformatics predictions and 10 human candidate imprinted genes from EST database mining. After quality control pruning, a total of 261 informative SNPs (214 genes) remained for analysis. Imprinting with maternal expression was demonstrated for the lymphocyte imprinted gene ZNF331 in human placenta. Two potential differentially methylated regions (DMRs) were found in the vicinity of ZNF331. None of the bioinformatically predicted candidates tested showed imprinting except for a skewed allelic expression in a parent-specific manner observed for PHACTR2, a neighbour of the imprinted PLAGL1 gene. ASE was detected for two or more individuals in 39 candidate genes (18%). CONCLUSIONS: Both Sequenom and Illumina assays were sensitive enough to study imprinting and strong allelic bias. Previous bioinformatics approaches were not predictive of new imprinted genes in the human term place
Published: 2010

14. Data analysis issues for allele-specific expression using Illumina's GoldenGate assay

Author: Ritchie, ME, Forrest, MS, Dimas, AS, Daelemans, C, Dermitzakis, ET, Deloukas, P, Tavare, S, Ritchie, ME, Forrest, MS, Dimas, AS, Daelemans, C, Dermitzakis, ET, Deloukas, P, and Tavare, S
Abstract: BACKGROUND: High-throughput measurement of allele-specific expression (ASE) is a relatively new and exciting application area for array-based technologies. In this paper, we explore several data sets which make use of Illumina's GoldenGate BeadArray technology to measure ASE. This platform exploits coding SNPs to obtain relative expression measurements for alleles at approximately 1500 positions in the genome. RESULTS: We analyze data from a mixture experiment where genomic DNA samples from pairs of individuals of known genotypes are pooled to create allelic imbalances at varying levels for the majority of SNPs on the array. We observe that GoldenGate has less sensitivity at detecting subtle allelic imbalances (around 1.3 fold) compared to extreme imbalances, and note the benefit of applying local background correction to the data. Analysis of data from a dye-swap control experiment allowed us to quantify dye-bias, which can be reduced considerably by careful normalization. The need to filter the data before carrying out further downstream analysis to remove non-responding probes, which show either weak, or non-specific signal for each allele, was also demonstrated. Throughout this paper, we find that a linear model analysis of the data from each SNP is a flexible modelling strategy that allows for testing of allelic imbalances in each sample when replicate hybridizations are available. CONCLUSIONS: Our analysis shows that local background correction carried out by Illumina's software, together with quantile normalization of the red and green channels within each array, provides optimal performance in terms of false positive rates. In addition, we strongly encourage intensity-based filtering to remove SNPs which only measure non-specific signal. We anticipate that a similar analysis strategy will prove useful when quantifying ASE on Illumina's higher density Infinium BeadChips.
Published: 2010

15. Establishment of a Low Cost Method of Evaluating Thermal Barrier Materials

Author: Daelemans, C. Paul, primary
Published: 1997
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16. Fuel cells hit home

Author: Daelemans, C. Paul
Subjects: Automobile industry, Business
Abstract: I enjoyed reading about the 'marriage' between GM and Dow Chemical for the advancement of fuel cell technology. This is a very encouraging milestone in the development of the fuel [...]
Published: 2004

17. CORRESPONDENCE.

Author: Bartell, David W., Weber, Hans J., Searfoss, Rick, Davis, Tom, Jolley, Michael, Daelemans, C. Paul, and Tussey, David
Subjects: LETTERS to the editor, AERONAUTICS, UNITED States armed forces appropriations & expenditures
Abstract: Several letters to the editor are presented in response to articles in previous issues including "Leveling the Field," by Pierre Sparaco in the September 21, 2009 issue, a comparison between National Aeronautics and Space Administration (NASA) and military funding, and a comment on the reinsertion of funding by the U.S. Congress for the F136 engine.
Published: 2009

18. CORRESPONDENCE.

Author: Gallagher, Michael R., Lloyd, Greg, Daelemans, C. Paul, Klapka, Ted, Nixon, David, Austin, Frank E., Garmon, Greg, Conley, Robert J., and Emery, David
Subjects: LETTERS to the editor, HYDROGEN as fuel, AIRCRAFT fuels, COMMERCIAL aeronautics laws, AIRLINE industry
Abstract: Several letters to the editor are presented in response to articles in previous issues including "Hydrogen, Future Airline Fuel?" in the June 23, 2008 issue ,"Making NASA Relevant Again" in the June 23, 2008 issue and "Bring Back Airline Regulation" in June 16, 2008.
Published: 2008

19. Feedback.

Author: Daelemans, C. Paul, Bezman, Steven P., Mancuso, George, Egli, Christopher, and Lepkovsky, J.
Subjects: *DATA mining, *SOCIAL media, *PRINT advertising, *COMPLAINT letters
Abstract: The article presents several letters to the editor for the articles "Mining the Gap" by Sharon Weinberger in the December (Dec.) 24, 2012 issue concerning the extraction and manipulation of data from social media, "Bring the Mountain..." by Frank Morring Jr. in the Dec. 17 issue on difficulties the U.S. National Aeronautics and Space Agency is facing, and a complaint concerning an advertisement in the Dec. 17 issue.
Published: 2013

20. FEEDBACK.

Author: Chrismer, Denny, Daelemans, C. Paul, Esterson, Clayton, Kohout, John J., Turner, Joe, and Hamlin, George
Subjects: *LETTERS to the editor, *JET engines, *FIGHTER planes, *AIRTANKERS (Military science), *AIRPLANE design
Abstract: Letters to the editor are presented in response to articles including "Collateral Damage," published in the May 21, 2010 issue, "Tanker Quagmire," also published in that issue, and an article on the airline Emirates published in the June 14, 2010 issue.
Published: 2010

21. CORRESPONDENCE.

Author: Evans, Stephen A., Daelemans, C. Paul, Zagar, Joe, Shipe, James, and Thompson, Robert F.
Subjects: *LETTERS to the editor, *CARBON dioxide mitigation, *WEATHER, *SUSTAINABLE design, *ENVIRONMENTAL protection
Abstract: Several letters to the editor are presented in response to articles in previous issues including "The Carbon Dioxide Circle," by Robert G. Robinson in the April 20, 2009 issue, "Collision Course" in the April 6, 2009 issue, and "Building Green" in the April 20, 2009 issue.
Published: 2009

22. CORRESPONDENCE.

Author: Price, Bob, Reed, Allan H., Daelemans, C. Paul, Barrett, Gerald D., and Hoche-Mong, Raymond
Subjects: AIR traffic control, LETTERS to the editor, AIRPLANES, PROTECTIONISM, AERONAUTICAL safety measures, HELICOPTERS
Abstract: Presents letters to the editor referencing articles and topics about airlines discussed in previous issues of the Aviation Week and Space Technology. Discusses the various technical points of a helicopter; Analyses the issue of protectionism to be adopted by American companies; Evaluates the air traffic control systems for Boeing.
Published: 2004

23. Risk factors associated with adverse fetal outcomes in pregnancies affected by Coronavirus disease 2019 (COVID-19): a secondary analysis of the WAPM study on COVID-19

Author: Eran Hadar, Chiara Benedetto, Agnese Maria Chiara Rapisarda, Renato Augusto Moreira de Sá, Deena Elkafrawi, Daniela Luvero, Noa A Brzezinski Sinai, Alicia Martínez-Varea, Antonio Schiattarella, Anna Nunzia Della Gatta, Giovanni Scambia, Albert Lila, Luciano Di Tizio, Andrea Carosso, Giovanni Nazzaro, G. Schera, Giuseppe Rizzo, Giuseppe Maria Maruotti, Giusella D'Urso, Albaro José Nieto-Calvache, Ilenia Mappa, Ozlem Uyaniklar, Fabio Barra, Gilles Faron, Luigi Nappi, Jacopo Ferrari, Giulio Sozzi, Simone Ferrero, Mirjam Druškovič, Tanja Premru-Srsen, Leonardo Borrello, Fabiana Cecchini D, George Daskalakis, Giuliano Petriglia, Caroline Kadji, Felipe Mercado-Olivares, Zeliha Atak, Aylin Pelin Cil, Claudio Gustavino, Axelle Pintiaux, Pantaleo Greco, Rita Figueiredo, Stefano Cosma, Ludovica Puri, Valentina Esposito, Anupam Parange, Simone Garzon, Alessandra Gatti, Ioannis Kyvernitakis, Roberto Brunelli, Maddalena Morlando, Attilio Di Spiezio Sardo, Ignacio Cueto Hernández, Giuseppe Zoccali, Brian Rodriguez, Antonio Mollo, Flaminia Vena, Cihat Sen, Ciuhodaru Madalina, Felice Sorrentino, Francesca Di Sebastiano, Gennady T. Sukhikh, Ilma Floriana Carbone, Andrea Villasco, Blanka Zlatohlavkova, Gabriele Saccone, Erasmo Huertas, Marcel Malan, Leonardo Gucciardo, Eutalia Esposito, Otto Henrique May Feuerschuette, Sarah Dollinger, María de Los Angeles Anaya Baz, Jun Yoshimatsu, Sifa Turan, Vincente Diago, Alicia Yeliz Aykanat, Ignacio Herraiz, Javier Alfonso Schvartzman, Diego Gazzolo, Natalina Buono, Milan Stanojević, Erich Cosmi, Valentina De Robertis, Elena Costa, Angelo Cagnacci, Eleonora Valori, Nicoletta Biglia, Şerife Özlem Genç, Vincenzo Berghella, Francesco Maria Colaleo, Esther Vanessa Aguilar Galán, Gabriela Loscalzo, Marco Palumbo, Fabrizio Sandri, Irmeli Nupponen, Antonio Lanzone, Juan Antonio De León Luis, Amos Grunebaum, Giuseppe Bifulco, Marinella Lenzi, Serena Xodo, Fulvio Zullo, Ozhan Turan, Josefine Königbauer, Anna Luengo Piqueras, Nicola Volpe, Holger Maul, Chiara Taccaliti, Juan Manuel Burgos-Luna, Giovanni Sisti, Rosanna Esposito, Alfredo Ercoli, Panos Antsaklis, Dolores Esteban Oliva, Aly Youssef, Pedro Viana Pinto, Alberto Galindo, Asim Kurjak, Erhan Okuyan, Roberto Angioli, Maria Luisa Gonzalez-Duran, Ana Concheiro Guisan, Massimo Franchi, Maria Carmela Di Dedda, Giovanni Gerosolima, Francesco D'Antonio, Caroline Daelemans, Quintino Cesare Ianniciello, Pasquale De Franciscis, Maurizio Guida, Maria Cristina Rovellotti, Liana Ples, Frank A. Chervenak, Nicola Colacurci, Lilijana Kornhauser Cerar, Zulfiya Khodjaeva, Valentina Longo, Francesca Stollagli, Daniele Di Mascio, Mariavittoria Locci, Amadeo Sanchez, Angelo Sirico, Stefania Fieni, Rebeca Garrote Molpeceres, Pierluigi Benedetti Panici, Vito Chiantera, Esra Tustas Haberal, Liviu Cojocaru, Maria Elena Flacco, Antonella Cromi, Roberta Granese, Antonio Simone Laganà, Maria Giulia Lombana Marino, Silvia Visentin, Beatrice Bianchi, Roberta Venturella, Federica Laraud, Amanda Bermejo, Reyhan Gündüz, Marina Moucho, Zita Maria Gambacorti-Passerini, Danila Morano, Pedro Arango, Francesca Della Sala, Gaetana Di Donna, Jesús S Jimenez Lopez, Mariano Catello Di Donna, Giuliana Simonazzi, Snezana Zdjelar, Vedran Stefanovic, Cecilia Villalain, Antonio Coviello, Lars Hellmeyer, Antonella Giancotti, Elisa Bevilacqua, Igor Samardjiski, Riccardo Buscemi, Arianna Ramone, Marco Cerbone, Lorenza Driul, Danilo Buca, Tiziana Frusca, Elisa Done, Marco Liberati, José Morales Roselló, Fabio Ghezzi, Lorenzo Vasciaveo, Bernd Froessler, Alejandro Pittaro, Yolanda Cuñarro López, Andrew Carlin, Sakine Rahimli Ocakouglu, Giorgia Gattei, I. Cataneo, María José Suárez, Giada Ameli, Lamberto Manzoli, Kaisa Nelskylä, Ludovico Muzii, Peter Palm, Olus Api, Elisa Cueto, Martina Leombroni, Ksenia A. Gorina, HUS Gynecology and Obstetrics, Department of Obstetrics and Gynecology, Children's Hospital, HUS Children and Adolescents, HUS Perioperative, Intensive Care and Pain Medicine, Anestesiologian yksikkö, Department of Diagnostics and Therapeutics, Dicle Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Kadın Hastalıkları ve Doğum Ana Bilim Dalı, Gündüz, Reyhan, Di Mascio D., Sen C., Saccone G., Galindo A., Grunebaum A., Yoshimatsu J., Stanojevic M., Kurjak A., Chervenak F., Suarez M.J.R., Gambacorti-Passerini Z.M., De Los Angeles Anaya Baz M., Galan E.V.A., Lopez Y.C., De Leon Luis J.A., Hernandez I.C., Herraiz I., Villalain C., Venturella R., Rizzo G., Mappa I., Gerosolima G., Hellmeyer L., Konigbauer J., Ameli G., Frusca T., Volpe N., Schera G.B.L., Fieni S., Esposito E., Simonazzi G., Di Donna G., Youssef A., Della Gatta A.N., Di Donna M.C., Chiantera V., Buono N., Sozzi G., Greco P., Morano D., Bianchi B., Marino M.G.L., Laraud F., Ramone A., Cagnacci A., Barra F., Gustavino C., Ferrero S., Ghezzi F., Cromi A., Lagana A.S., Longo V.L., Stollagli F., Sirico A., Lanzone A., Driul L., Fabiana Cecchini D., Xodo S., Rodriguez B., Mercado-Olivares F., Elkafrawi D., Sisti G., Esposito R., Coviello A., Cerbone M., Morlando M., Schiattarella A., Colacurci N., De Franciscis P., Cataneo I., Lenzi M., Sandri F., Buscemi R., Gattei G., Della Sala F., Valori E., Rovellotti M.C., Done E., Faron G., Gucciardo L., Esposito V., Vena F., Giancotti A., Brunelli R., Muzii L., Nappi L., Sorrentino F., Vasciaveo L., Liberati M., Buca D., Leombroni M., Di Sebastiano F., Di Tizio L., Gazzolo D., Franchi M., Ianniciello Q.C., Garzon S., Petriglia G., Borrello L., Nieto-Calvache A.J., Burgos-Luna J.M., Kadji C., Carlin A., Bevilacqua E., Moucho M., Pinto P.V., Figueiredo R., Rosello J.M., Loscalzo G., Martinez-Varea A., Diago V., Lopez J.S.J., Aykanat A.Y., Cosma S., Carosso A., Benedetto C., Bermejo A., Feuerschuette O.H.M., Uyaniklar O., Ocakouglu S.R., Atak Z., Gunduz R., Haberal E.T., Froessler B., Parange A., Palm P., Samardjiski I., Taccaliti C., Okuyan E., Daskalakis G., De Sa R.A.M., Pittaro A., Gonzalez-Duran M.L., Guisan A.C., Genc S.O., Zlatohlavkova B., Piqueras A.L., Oliva D.E., Cil A.P., Api O., Antsaklis P., Ples L., Kyvernitakis I., Maul H., Malan M., Lila A., Granese R., Ercoli A., Zoccali G., Villasco A., Biglia N., Madalina C., Costa E., Daelemans C., Pintiaux A., Cueto E., Hadar E., Dollinger S., Sinai N.A.B., Huertas E., Arango P., Sanchez A., Schvartzman J.A., Cojocaru L., Turan S., Turan O., Di Dedda M.C., Molpeceres R.G., Zdjelar S., Premru-Srsen T., Cerar L.K., Druskovie M., De Robertis V., Stefanovic V., Nupponen I., Nelskyla K., Khodjaeva Z., Gorina K.A., Sukhikh G.T., Maruotti G.M., Visentin S., Cosmi E., Ferrari J., Gatti A., Luvero D., Angioli R., Puri L., Palumbo M., D'Urso G., Colaleo F., Rapisarda A.M.C., Carbone I.F., Mollo A., Nazzaro G., Locci M., Guida M., Di Spiezio Sardo A., Panici P.B., Berghella V., Flacco M.E., Manzoli L., Bifulco G., Scambia G., Zullo F., D'Antonio F., Di Mascio D, Sen C, Saccone G, Galindo A, Grünebaum A, Yoshimatsu J, Stanojevic M, Kurjak A, Chervenak F, Rodríguez Suárez MJ, Gambacorti-Passerini ZM, Baz MLAA, Aguilar Galán EV, López YC, De León Luis JA, Hernández IC, Herraiz I, Villalain C, Venturella R, Rizzo G, Mappa I, Gerosolima G, Hellmeyer L, Königbauer J, Ameli G, Frusca T, Volpe N, Luca Schera GB, Fieni S, Esposito E, Simonazzi G, Di Donna G, Youssef A, Della Gatta AN, Di Donna MC, Chiantera V, Buono N, Sozzi G, Greco P, Morano D, Bianchi B, Lombana Marino MG, Laraud F, Ramone A, Cagnacci A, Barra F, Gustavino C, Ferrero S, Ghezzi F, Cromi A, Laganà AS, Laurita Longo V, Stollagli F, Sirico A, Lanzone A, Driul L, Cecchini D F, Xodo S, Rodriguez B, Mercado-Olivares F, Elkafrawi D, Sisti G, Esposito R, Coviello A, Cerbone M, Morlando M, Schiattarella A, Colacurci N, De Franciscis P, Cataneo I, Lenzi M, Sandri F, Buscemi R, Gattei G, Sala FD, Valori E, Rovellotti MC, Done E, Faron G, Gucciardo L, Esposito V, Vena F, Giancotti A, Brunelli R, Muzii L, Nappi L, Sorrentino F, Vasciaveo L, Liberati M, Buca D, Leombroni M, Di Sebastiano F, Di Tizio L, Gazzolo D, Franchi M, Ianniciello QC, Garzon S, Petriglia G, Borrello L, Nieto-Calvache AJ, Burgos-Luna JM, Kadji C, Carlin A, Bevilacqua E, Moucho M, Pinto PV, Figueiredo R, Roselló JM, Loscalzo G, Martinez-Varea A, Diago V, Jimenez Lopez JS, Aykanat AY, Cosma S, Carosso A, Benedetto C, Bermejo A, May Feuerschuette OH, Uyaniklar O, Ocakouglu SR, Atak Z, Gündüz R, Haberal ET, Froessler B, Parange A, Palm P, Samardjiski I, Taccaliti C, Okuyan E, Daskalakis G, Moreira de Sa RA, Pittaro A, Gonzalez-Duran ML, Guisan AC, Genç ŞÖ, Zlatohlávková B, Piqueras AL, Oliva DE, Cil AP, Api O, Antsaklis P, Ples L, Kyvernitakis I, Maul H, Malan M, Lila A, Granese R, Ercoli A, Zoccali G, Villasco A, Biglia N, Madalina C, Costa E, Daelemans C, Pintiaux A, Cueto E, Hadar E, Dollinger S, Brzezinski Sinai NA, Huertas E, Arango P, Sanchez A, Schvartzman JA, Cojocaru L, Turan S, Turan O, Di Dedda MC, Molpeceres RG, Zdjelar S, Premru-Srsen T, Cerar LK, Druškovič M, De Robertis V, Stefanovic V, Nupponen I, Nelskylä K, Khodjaeva Z, Gorina KA, Sukhikh GT, Maruotti GM, Visentin S, Cosmi E, Ferrari J, Gatti A, Luvero D, Angioli R, Puri L, Palumbo M, D'Urso G, Colaleo F, Chiara Rapisarda AM, Carbone IF, Mollo A, Nazzaro G, Locci M, Guida M, Di Spiezio Sardo A, Panici PB, Berghella V, Flacco ME, Manzoli L, Bifulco G, Scambia G, Zullo F, D'Antonio F, Di Mascio, D., Sen, C., Saccone, G., Galindo, A., Grunebaum, A., Yoshimatsu, J., Stanojevic, M., Kurjak, A., Chervenak, F., Suarez, M. J. R., Gambacorti-Passerini, Z. M., De Los Angeles Anaya Baz, M., Galan, E. V. A., Lopez, Y. C., De Leon Luis, J. A., Hernandez, I. C., Herraiz, I., Villalain, C., Venturella, R., Rizzo, G., Mappa, I., Gerosolima, G., Hellmeyer, L., Konigbauer, J., Ameli, G., Frusca, T., Volpe, N., Schera, G. B. L., Fieni, S., Esposito, E., Simonazzi, G., Di Donna, G., Youssef, A., Della Gatta, A. N., Di Donna, M. C., Chiantera, V., Buono, N., Sozzi, G., Greco, P., Morano, D., Bianchi, B., Marino, M. G. L., Laraud, F., Ramone, A., Cagnacci, A., Barra, F., Gustavino, C., Ferrero, S., Ghezzi, F., Cromi, A., Lagana, A. S., Longo, V. L., Stollagli, F., Sirico, A., Lanzone, A., Driul, L., Fabiana Cecchini, D., Xodo, S., Rodriguez, B., Mercado-Olivares, F., Elkafrawi, D., Sisti, G., Esposito, R., Coviello, A., Cerbone, M., Morlando, M., Schiattarella, A., Colacurci, N., De Franciscis, P., Cataneo, I., Lenzi, M., Sandri, F., Buscemi, R., Gattei, G., Della Sala, F., Valori, E., Rovellotti, M. C., Done, E., Faron, G., Gucciardo, L., Esposito, V., Vena, F., Giancotti, A., Brunelli, R., Muzii, L., Nappi, L., Sorrentino, F., Vasciaveo, L., Liberati, M., Buca, D., Leombroni, M., Di Sebastiano, F., Di Tizio, L., Gazzolo, D., Franchi, M., Ianniciello, Q. C., Garzon, S., Petriglia, G., Borrello, L., Nieto-Calvache, A. J., Burgos-Luna, J. M., Kadji, C., Carlin, A., Bevilacqua, E., Moucho, M., Pinto, P. V., Figueiredo, R., Rosello, J. M., Loscalzo, G., Martinez-Varea, A., Diago, V., Lopez, J. S. J., Aykanat, A. Y., Cosma, S., Carosso, A., Benedetto, C., Bermejo, A., Feuerschuette, O. H. M., Uyaniklar, O., Ocakouglu, S. R., Atak, Z., Gunduz, R., Haberal, E. T., Froessler, B., Parange, A., Palm, P., Samardjiski, I., Taccaliti, C., Okuyan, E., Daskalakis, G., De Sa, R. A. M., Pittaro, A., Gonzalez-Duran, M. L., Guisan, A. C., Genc, S. O., Zlatohlavkova, B., Piqueras, A. L., Oliva, D. E., Cil, A. P., Api, O., Antsaklis, P., Ples, L., Kyvernitakis, I., Maul, H., Malan, M., Lila, A., Granese, R., Ercoli, A., Zoccali, G., Villasco, A., Biglia, N., Madalina, C., Costa, E., Daelemans, C., Pintiaux, A., Cueto, E., Hadar, E., Dollinger, S., Sinai, N. A. B., Huertas, E., Arango, P., Sanchez, A., Schvartzman, J. A., Cojocaru, L., Turan, S., Turan, O., Di Dedda, M. C., Molpeceres, R. G., Zdjelar, S., Premru-Srsen, T., Cerar, L. K., Druskovie, M., De Robertis, V., Stefanovic, V., Nupponen, I., Nelskyla, K., Khodjaeva, Z., Gorina, K. A., Sukhikh, G. T., Maruotti, G. M., Visentin, S., Cosmi, E., Ferrari, J., Gatti, A., Luvero, D., Angioli, R., Puri, L., Palumbo, M., D'Urso, G., Colaleo, F., Rapisarda, A. M. C., Carbone, I. F., Mollo, A., Nazzaro, G., Locci, M., Guida, M., Di Spiezio Sardo, A., Panici, P. B., Berghella, V., Flacco, M. E., Manzoli, L., Bifulco, G., Scambia, G., Zullo, F., D'Antonio, F., Di Mascio, Daniele, Sen, Cihat, Saccone, Gabriele, Galindo, Alberto, Grünebaum, Amo, Yoshimatsu, Jun, Stanojevic, Milan, Kurjak, Asım, Chervenak, Frank, Rodríguez Suárez, María José, Gambacorti-Passerini, Zita Maria, Baz, María de Los Angeles Anaya, Aguilar Galán, Esther Vanessa, López, Yolanda Cuñarro, De León Luis, Juan Antonio, Hernández, Ignacio Cueto, Herraiz, Ignacio, Villalain, Cecilia, Venturella, Roberta, Rizzo, Giuseppe, Mappa, Ilenia, Gerosolima, Giovanni, Hellmeyer, Lar, Königbauer, Josefine, Ameli, Giada, Frusca, Tiziana, Volpe, Nicola, Luca Schera, Giovanni Battista, Fieni, Stefania, Esposito, Eutalia, Simonazzi, Giuliana, Di Donna, Gaetana, Youssef, Aly, Della Gatta, Anna Nunzia, Di Donna, Mariano Catello, Chiantera, Vito, Buono, Natalina, Sozzi, Giulio, Greco, Pantaleo, Morano, Danila, Bianchi, Beatrice, Lombana Marino, Maria Giulia, Laraud, Federica, Ramone, Arianna, Cagnacci, Angelo, Barra, Fabio, Gustavino, Claudio, Ferrero, Simone, Ghezzi, Fabio, Cromi, Antonella, Laganà, Antonio Simone, Longo, Valentina Laurita, Stollagli, Francesca, Sirico, Angelo, Lanzone, Antonio, Driul, Lorenza, Cecchini D, Fabiana, Xodo, Serena, Rodriguez, Brian, Mercado-Olivares, Felipe, Elkafrawi, Deena, Sisti, Giovanni, Esposito, Rosanna, Coviello, Antonio, Cerbone, Marco, Morlando, Maddalena, Schiattarella, Antonio, Colacurci, Nicola, De Franciscis, Pasquale, Cataneo, Ilaria, Lenzi, Marinella, Sandri, Fabrizio, Buscemi, Riccardo, Gattei, Giorgia, Sala, Francesca Della, Valori, Eleonora, Rovellotti, Maria Cristina, Done, Elisa, Faron, Gille, Gucciardo, Leonardo, Esposito, Valentina, Vena, Flaminia, Giancotti, Antonella, Brunelli, Roberto, Muzii, Ludovico, Nappi, Luigi, Sorrentino, Felice, Vasciaveo, Lorenzo, Liberati, Marco, Buca, Danilo, Leombroni, Martina, Di Sebastiano, Francesca, Di Tizio, Luciano, Gazzolo, Diego, Franchi, Massimo, Ianniciello, Quintino Cesare, Garzon, Simone, Petriglia, Giuliano, Borrello, Leonardo, Nieto-Calvache, Albaro Josè, Burgos-Luna, Juan Manuel, Kadji, Caroline, Carlin, Andrew, Bevilacqua, Elisa, Moucho, Marina, Pinto, Pedro Viana, Figueiredo, Rita, Roselló, José Morale, Loscalzo, Gabriela, Martinez-Varea, Alicia, Diago, Vincente, Jimenez Lopez, Jesús S, Aykanat, Alicia Yeliz, Cosma, Stefano, Carosso, Andrea, Benedetto, Chiara, Bermejo, Amanda, May Feuerschuette, Otto Henrique, Uyaniklar, Ozlem, Ocakouglu, Sakine Rahimli, Atak, Zeliha, Haberal, Esra Tusta, Froessler, Bernd, Parange, Anupam, Palm, Peter, Samardjiski, Igor, Taccaliti, Chiara, Okuyan, Erhan, Daskalakis, George, Moreira de Sa, Renato Augusto, Pittaro, Alejandro, Gonzalez-Duran, Maria Luisa, Guisan, Ana Concheiro, Genç, Şerife Özlem, Zlatohlávková, Blanka, Piqueras, Anna Luengo, Oliva, Dolores Esteban, Cil, Aylin Pelin, Api, Olu, Antsaklis, Pano, Ples, Liana, Kyvernitakis, Ioanni, Maul, Holger, Malan, Marcel, Lila, Albert, Granese, Roberta, Ercoli, Alfredo, Zoccali, Giuseppe, Villasco, Andrea, Biglia, Nicoletta, Madalina, Ciuhodaru, Costa, Elena, Daelemans, Caroline, Pintiaux, Axelle, Yapar Eyi, Elif Gül, Cueto, Elisa, Hadar, Eran, Dollinger, Sarah, Brzezinski Sinai, Noa A, Huertas, Erasmo, Arango, Pedro, Sanchez, Amadeo, Schvartzman, Javier Alfonso, Cojocaru, Liviu, Turan, Sifa, Turan, Ozhan, Di Dedda, Maria Carmela, Molpeceres, Rebeca Garrote, Zdjelar, Snezana, Premru-Srsen, Tanja, Cerar, Lilijana Kornhauser, Druškovič, Mirjam, De Robertis, Valentina, Stefanovic, Vedran, Nupponen, Irmeli, Nelskylä, Kaisa, Khodjaeva, Zulfiya, Gorina, Ksenia A, Sukhikh, Gennady T, Maruotti, Giuseppe Maria, Visentin, Silvia, Cosmi, Erich, Ferrari, Jacopo, Gatti, Alessandra, Luvero, Daniela, Angioli, Roberto, Puri, Ludovica, Palumbo, Marco, D'Urso, Giusella, Colaleo, Francesco, Chiara Rapisarda, Agnese Maria, Carbone, Ilma Floriana, Mollo, Antonio, Nazzaro, Giovanni, Locci, Mariavittoria, Guida, Maurizio, Di Spiezio Sardo, Attilio, Panici, Pierluigi Benedetti, Berghella, Vincenzo, Flacco, Maria Elena, Manzoli, Lamberto, Bifulco, Giuseppe, Scambia, Giovanni, Zullo, Fulvio, and D'Antonio, Francesco
Subjects: COVID-19 Vaccine, Infectious Disease Transmission, Perinatal Death, Abortion, Clinical Laboratory Technique, Miscarriage, Cohort Studies, 0302 clinical medicine, COVID-19 Testing, Pregnancy, Risk Factors, 3123 Gynaecology and paediatrics, Secondary analysis, Perinatal medicine, Abortion, Spontaneou, Medicine, Vertical, 030212 general & internal medicine, Viral, Pregnancy Complications, Infectious, coronavirus, perinatal morbidity, perinatal mortality, covid-19, Coronavirus, Abortion, Spontaneous, COVID-19, COVID-19 Vaccines, Clinical Laboratory Techniques, Coronavirus Infections, Female, Gestational Age, Humans, Infant, Newborn, Infant, Premature, Infectious Disease Transmission, Vertical, Pandemics, Pneumonia, Viral, Pregnancy Outcome, Reverse Transcriptase Polymerase Chain Reaction, SARS-CoV-2, Betacoronavirus, Fetal Death, 030219 obstetrics & reproductive medicine, Obstetrics, Infectious, Gestational age, Obstetrics and Gynecology, 3. Good health, Settore MED/40, Gestation, Human, medicine.medical_specialty, Coronavirus disease 2019 (COVID-19), Coronaviru, Socio-culturale, Intrauterine device, 03 medical and health sciences, PARVOVIRUS B19 INFECTION, Coronavirus, perinatal morbidity, perinatal mortality, Adverse effect, Premature, Fetus, Betacoronaviru, Pandemic, Coronavirus Infection, business.industry, Risk Factor, Spontaneous, MORTALITY, Infant, Odds ratio, Pneumonia, medicine.disease, Newborn, Pregnancy Complications, Pediatrics, Perinatology and Child Health, Pregnancy Complications, Infectiou, Cohort Studie, business
Abstract: Objectives To evaluate the strength of association between maternal and pregnancy characteristics and the risk of adverse perinatal outcomes in pregnancies with laboratory confirmed COVID-19. Methods Secondary analysis of a multinational, cohort study on all consecutive pregnant women with laboratory-confirmed COVID-19 from February 1, 2020 to April 30, 2020 from 73 centers from 22 different countries. A confirmed case of COVID-19 was defined as a positive result on real-time reverse-transcriptase-polymerase-chain-reaction (RT-PCR) assay of nasal and pharyngeal swab specimens. The primary outcome was a composite adverse fetal outcome, defined as the presence of either abortion (pregnancy loss before 22 weeks of gestations), stillbirth (intrauterine fetal death after 22 weeks of gestation), neonatal death (death of a live-born infant within the first 28 days of life), and perinatal death (either stillbirth or neonatal death). Logistic regression analysis was performed to evaluate parameters independently associated with the primary outcome. Logistic regression was reported as odds ratio (OR) with 95% confidence interval (CI). Results Mean gestational age at diagnosis was 30.6±9.5 weeks, with 8.0% of women being diagnosed in the first, 22.2% in the second and 69.8% in the third trimester of pregnancy. There were six miscarriage (2.3%), six intrauterine device (IUD) (2.3) and 5 (2.0%) neonatal deaths, with an overall rate of perinatal death of 4.2% (11/265), thus resulting into 17 cases experiencing and 226 not experiencing composite adverse fetal outcome. Neither stillbirths nor neonatal deaths had congenital anomalies found at antenatal or postnatal evaluation. Furthermore, none of the cases experiencing IUD had signs of impending demise at arterial or venous Doppler. Neonatal deaths were all considered as prematurity-related adverse events. Of the 250 live-born neonates, one (0.4%) was found positive at RT-PCR pharyngeal swabs performed after delivery. The mother was tested positive during the third trimester of pregnancy. The newborn was asymptomatic and had negative RT-PCR test after 14 days of life. At logistic regression analysis, gestational age at diagnosis (OR: 0.85, 95% CI 0.8–0.9 per week increase; p Conclusions Early gestational age at infection, maternal ventilatory supports and low birthweight are the main determinants of adverse perinatal outcomes in fetuses with maternal COVID-19 infection. Conversely, the risk of vertical transmission seems negligible.
Published: 2021

24. Maternal and perinatal outcomes of pregnant women with SARS-CoV-2 infection

Author: Di Mascio Daniele, Gabriele, Saccone, Cihat, Sen, Daniele Di Mascio, Alberto, Galindo, Amos, Grünebaum, Jun, Yoshimatsu, Milan, Stanojevic, Asım, Kurjak, Frank, Chervenak, María José Rodríguez Suárez, Zita Maria Gambacorti-Passerini, María de Los Angeles Anaya Baz, Esther Vanessa Aguilar Galán, Yolanda Cuñarro López, Juan Antonio De León Luis, Ignacio Cueto Hernández, Ignacio, Herraiz, Cecilia, Villalain, Roberta, Venturella, Rizzo, GIUSEPPE DAVIDE, Ilenia, Mappa, Giovanni, Gerosolima, Lars, Hellmeyer, Josefine, Königbauer, Giada, Ameli, Tiziana, Frusca, Nicola, Volpe, Giovanni Battista Luca Schera, Stefania, Fieni, Eutalia, Esposito, Giuliana, Simonazzi, Gaetana Di Donna, Aly, Youssef, Anna Nunzia Della Gatta, Mariano Catello Di Donna, Vito, Chiantera, Natalina, Buono, Giulio, Sozzi, Pantaleo, Greco, Danila, Morano, Beatrice, Bianchi, Maria Giulia Lombana Marino, Federica, Laraud, Arianna, Ramone, Angelo, Cagnacci, Fabio, Barra, Claudio, Gustavino, Ferrero, Simone, Fabio, Ghezzi, Antonella, Cromi, Antonio Simone Laganà, Valentina Laurita Longo, Francesca, Stollagli, Angelo, Sirico, Antonio, Lanzone, Lorenza, Driul, Fabiana, Cecchini, Serena, Xodo, Brian, Rodriguez, Felipe, Mercado-Olivares, Deena, Elkafrawi, Giovanni, Sisti, Rosanna, Esposito, Antonio, Coviello, Marco, Cerbone, Maddalena, Morlando, Antonio, Schiattarella, Nicola, Colacurci, Pasquale De Franciscis, Ilaria, Cataneo, Marinella, Lenzi, Fabrizio, Sandri, Riccardo, Buscemi, Giorgia, Gattei, Francesca Della Sala, Eleonora, Valori, Maria Cristina Rovellotti, Elisa, Done, Gilles, Faron, Leonardo, Gucciardo, Esposito, Valentina, Flaminia, Vena, Antonella, Giancotti, Roberto, Brunelli, Ludovico, Muzii, Luigi, Nappi, Felice, Sorrentino, Marco, Liberati, Danilo, Buca, Martina, Leombroni, Francesca Di Sebastiano, Massimo, Franchi, Quintino Cesare Ianniciello, Simone, Garzon, Giuliano, Petriglia, Leonardo, Borrello, Albaro Josè Nieto-Calvache, Juan Manuel Burgos-Luna, Caroline, Kadji, Andrew, Carlin, Elisa, Bevilacqua, Marina, Moucho, Pedro, Viana, Rita, Figueiredo, José Morales Roselló, Gabriela, Loscalzo, Alicia, Martinez-Varea, Vincente, Diago, Jesús, S Jimenez Lopez, Alicia Yeliz Aykanat, Cosma, Stefano Domenico, Carosso, ANDREA ROBERTO, Benedetto, Chiara, Amanda, Bermejo, Otto Henrique May Feuerschuette, Ozlem, Uyaniklar, Sakine Rahimli Ocakouglu, Zeliha, Atak, Reyhan, Gündüz, Esra Tustas Haberal, Bernd, Froessler, Anupam, Parange, Peter, Palm, Igor, Samardjiski, Chiara, Taccaliti, Erhan, Okuyan, George, Daskalakis, Renato Augusto Moreira de Sa, Alejandro, Pittaro, Maria Luisa Gonzalez-Duran, Ana Concheiro Guisan, Şerife Özlem Genç, Blanka, Zlatohlávková, Anna Luengo Piqueras, Dolores Esteban Oliva, Aylin Pelin Cil, Olus, Api, Panos, Antsaklis, Liana, Ples, Ioannis, Kyvernitakis, Holger, Maul, Marcel, Malan, Albert, Lila, Roberta, Granese, Alfredo, Ercoli, Giuseppe, Zoccali, Villasco, Andrea, Biglia, Nicoletta, Ciuhodaru, Madalina, Costa, Elena, Caroline, Daelemans, Axelle, Pintiaux, Elif Gül Yapar Eyi, Elisa, Cueto, Eran, Hadar, Sarah, Dollinger, Noa, A Brzezinski-Sinai, Erasmo, Huertas, Pedro, Arango, Amadeo, Sanchez, Javier Alfonso Schvartzman, Liviu, Cojocaru, Sifa, Turan, Ozhan, Turan, Maria Carmela Di Dedda, Rebeca Garrote Molpeceres, Snezana, Zdjelar, Tanja, Premru-Srsen, Lilijana, Kornhauser-Cerar, Mirjam, Druškovič, Valentina De Robertis, Vedran, Stefanovic, Irmeli, Nupponen, Kaisa, Nelskylä, Zulfiya, Khodjaeva, Ksenia, A Gorina, Gennady, T Sukhikh, Giuseppe Maria Maruotti, Silvia, Visentin, Erich, Cosmi, Jacopo, Ferrari, Alessandra, Gatti, Daniela, Luvero, Roberto, Angioli, Ludovica, Puri, Marco, Palumbo, Giusella, D'Urso, Francesco, Colaleo, Agnese Maria Chiara Rapisarda, Ilma Floriana Carbone, Manzoli, Lamberto, Maria Elena Flacco, Giovanni, Nazzaro, Mariavittoria, Locci, Maurizio, Guida, Attilio Di Spiezio Sardo, Pierluigi Benedetti Panici, Asma, Khalil, Vincenzo, Berghella, Giuseppe, Bifulco, Giovanni, Scambia, Fulvio, Zullo, Francesco, D'Antonio, Saccone, Gabriele, Sen, Cihat, Di Mascio, Daniele, Galindo, Alberto, Grünebaum, Amo, Yoshimatsu, Jun, Stanojevic, Milan, Kurjak, Asım, Chervenak, Frank, Suárez, María José Rodríguez, Gambacorti‐Passerini, Zita Maria, de los Angeles Anaya Baz, María, Galán, Esther Vanessa Aguilar, López, Yolanda Cuñarro, Luis, Juan Antonio De León, Hernández, Ignacio Cueto, Herraiz, Ignacio, Villalain, Cecilia, Venturella, Roberta, Rizzo, Giuseppe, Mappa, Ilenia, Gerosolima, Giovanni, Hellmeyer, Lar, Königbauer, Josefine, Ameli, Giada, Frusca, Tiziana, Volpe, Nicola, Schera, Giovanni Battista Luca, Fieni, Stefania, Esposito, Eutalia, Simonazzi, Giuliana, Di Donna, Gaetana, Youssef, Aly, Gatta, Anna Nunzia Della, Di Donna, Mariano Catello, Chiantera, Vito, Buono, Natalina, Sozzi, Giulio, Greco, Pantaleo, Morano, Danila, Bianchi, Beatrice, Marino, Maria Giulia Lombana, Laraud, Federica, Ramone, Arianna, Cagnacci, Angelo, Barra, Fabio, Gustavino, Claudio, Ferrero, Simone, Ghezzi, Fabio, Cromi, Antonella, Laganà, Antonio Simone, Longo, Valentina Laurita, Stollagli, Francesca, Sirico, Angelo, Lanzone, Antonio, Driul, Lorenza, Cecchini, Fabiana, Xodo, Serena, Rodriguez, Brian, Mercado‐Olivares, Felipe, Elkafrawi, Deena, Sisti, Giovanni, Esposito, Rosanna, Coviello, Antonio, Cerbone, Marco, Morlando, Maddalena, Schiattarella, Antonio, Colacurci, Nicola, De Franciscis, Pasquale, Cataneo, Ilaria, Lenzi, Marinella, Sandri, Fabrizio, Buscemi, Riccardo, Gattei, Giorgia, Sala, Francesca Della, Valori, Eleonora, Rovellotti, Maria Cristina, Done, Elisa, Faron, Gille, Gucciardo, Leonardo, Esposito, Valentina, Vena, Flaminia, Giancotti, Antonella, Brunelli, Roberto, Muzii, Ludovico, Nappi, Luigi, Sorrentino, Felice, Liberati, Marco, Buca, Danilo, Leombroni, Martina, Di Sebastiano, Francesca, Franchi, Massimo, Ianniciello, Quintino Cesare, Garzon, Simone, Petriglia, Giuliano, Borrello, Leonardo, Nieto‐Calvache, Albaro Josè, Burgos‐Luna, Juan Manuel, Kadji, Caroline, Carlin, Andrew, Bevilacqua, Elisa, Moucho, Marina, Viana Pinto, Pedro, Figueiredo, Rita, Morales Roselló, José, Loscalzo, Gabriela, Martinez‐Varea, Alicia, Diago, Vincente, Jimenez Lopez, Jesús S, Aykanat, Alicia Yeliz, Cosma, Stefano, Carosso, Andrea, Benedetto, Chiara, Bermejo, Amanda, Feuerschuette, Otto Henrique May, Uyaniklar, Ozlem, Ocakouglu, Sakine Rahimli, Atak, Zeliha, Gündüz, Reyhan, Haberal, Esra Tusta, Froessler, Bernd, Parange, Anupam, Palm, Peter, Samardjiski, Igor, Taccaliti, Chiara, Okuyan, Erhan, Daskalakis, George, de Sa, Renato Augusto Moreira, Pittaro, Alejandro, Gonzalez‐Duran, Maria Luisa, Guisan, Ana Concheiro, Genç, Şerife Özlem, Zlatohlávková, Blanka, Piqueras, Anna Luengo, Oliva, Dolores Esteban, Cil, Aylin Pelin, Api, Olu, Antsaklis, Pano, Ples, Liana, Kyvernitakis, Ioanni, Maul, Holger, Malan, Marcel, Lila, Albert, Granese, Roberta, Ercoli, Alfredo, Zoccali, Giuseppe, Villasco, Andrea, Biglia, Nicoletta, Madalina, Ciuhodaru, Costa, Elena, Daelemans, Caroline, Pintiaux, Axelle, Eyi, Elif Gül Yapar, Cueto, Elisa, Hadar, Eran, Dollinger, Sarah, Brzezinski‐Sinai, Noa A., Huertas, Erasmo, Arango, Pedro, Sanchez, Amadeo, Schvartzman, Javier Alfonso, Cojocaru, Liviu, Turan, Sifa, Turan, Ozhan, Di Dedda, Maria Carmela, Molpeceres, Rebeca Garrote, Zdjelar, Snezana, Premru‐Srsen, Tanja, Kornhauser‐Cerar, Lilijana, Druškovič, Mirjam, De Robertis, Valentina, Stefanovic, Vedran, Nupponen, Irmeli, Nelskylä, Kaisa, Khodjaeva, Zulfiya, Gorina, Ksenia A., Sukhikh, Gennady T., Maruotti, Giuseppe Maria, Visentin, Silvia, Cosmi, Erich, Ferrari, Jacopo, Gatti, Alessandra, Luvero, Daniela, Angioli, Roberto, Puri, Ludovica, Palumbo, Marco, D'Urso, Giusella, Colaleo, Francesco, Rapisarda, Agnese Maria Chiara, Carbone, Ilma Floriana, Manzoli, Lamberto, Flacco, Maria Elena, Nazzaro, Giovanni, Locci, Mariavittoria, Guida, Maurizio, Sardo, Attilio Di Spiezio, Panici, Pierluigi Benedetti, Khalil, Asma, Berghella, Vincenzo, Bifulco, Giuseppe, Scambia, Giovanni, Zullo, Fulvio, D'Antonio, Francesco, Dicle Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Kadın Hastalıkları ve DoğumAna Bilim Dalı, University of Helsinki, Department of Obstetrics and Gynecology, HUS Gynecology and Obstetrics, HUS Children and Adolescents, Children's Hospital, HUS Perioperative, Intensive Care and Pain Medicine, Anestesiologian yksikkö, Department of Diagnostics and Therapeutics, Saccone, G., Sen, C., Di Mascio, D., Galindo, A., Grunebaum, A., Yoshimatsu, J., Stanojevic, M., Kurjak, A., Chervenak, F., Suarez, M. J. R., Gambacorti-Passerini, Z. M., de los Angeles Anaya Baz, M., Galan, E. V. A., Lopez, Y. C., Luis, J. A. D. L., Hernandez, I. C., Herraiz, I., Villalain, C., Venturella, R., Rizzo, G., Mappa, I., Gerosolima, G., Hellmeyer, L., Konigbauer, J., Ameli, G., Frusca, T., Volpe, N., Schera, G. B. L., Fieni, S., Esposito, E., Simonazzi, G., Di Donna, G., Youssef, A., Gatta, A. N. D., Di Donna, M. C., Chiantera, V., Buono, N., Sozzi, G., Greco, P., Morano, D., Bianchi, B., Marino, M. G. L., Laraud, F., Ramone, A., Cagnacci, A., Barra, F., Gustavino, C., Ferrero, S., Ghezzi, F., Cromi, A., Lagana, A. S., Longo, V. L., Stollagli, F., Sirico, A., Lanzone, A., Driul, L., Cecchini, F., Xodo, S., Rodriguez, B., Mercado-Olivares, F., Elkafrawi, D., Sisti, G., Esposito, R., Coviello, A., Cerbone, M., Morlando, M., Schiattarella, A., Colacurci, N., De Franciscis, P., Cataneo, I., Lenzi, M., Sandri, F., Buscemi, R., Gattei, G., Sala, F. D., Valori, E., Rovellotti, M. C., Done, E., Faron, G., Gucciardo, L., Esposito, V., Vena, F., Giancotti, A., Brunelli, R., Muzii, L., Nappi, L., Sorrentino, F., Liberati, M., Buca, D., Leombroni, M., Di Sebastiano, F., Franchi, M., Ianniciello, Q. C., Garzon, S., Petriglia, G., Borrello, L., Nieto-Calvache, A. J., Burgos-Luna, J. M., Kadji, C., Carlin, A., Bevilacqua, E., Moucho, M., Viana Pinto, P., Figueiredo, R., Morales Rosello, J., Loscalzo, G., Martinez-Varea, A., Diago, V., Jimenez Lopez, J. S., Aykanat, A. Y., Cosma, S., Carosso, A., Benedetto, C., Bermejo, A., Feuerschuette, O. H. M., Uyaniklar, O., Ocakouglu, S. R., Atak, Z., Gunduz, R., Haberal, E. T., Froessler, B., Parange, A., Palm, P., Samardjiski, I., Taccaliti, C., Okuyan, E., Daskalakis, G., de Sa, R. A. M., Pittaro, A., Gonzalez-Duran, M. L., Guisan, A. C., Genc, S. O., Zlatohlavkova, B., Piqueras, A. L., Oliva, D. E., Cil, A. P., Api, O., Antsaklis, P., Ples, L., Kyvernitakis, I., Maul, H., Malan, M., Lila, A., Granese, R., Ercoli, A., Zoccali, G., Villasco, A., Biglia, N., Madalina, C., Costa, E., Daelemans, C., Pintiaux, A., Cueto, E., Hadar, E., Dollinger, S., Brzezinski-Sinai, N. A., Huertas, E., Arango, P., Sanchez, A., Schvartzman, J. A., Cojocaru, L., Turan, S., Turan, O., Di Dedda, M. C., Molpeceres, R. G., Zdjelar, S., Premru-Srsen, T., Kornhauser-Cerar, L., Druskovic, M., De Robertis, V., Stefanovic, V., Nupponen, I., Nelskyla, K., Khodjaeva, Z., Gorina, K. A., Sukhikh, G. T., Maruotti, G. M., Visentin, S., Cosmi, E., Ferrari, J., Gatti, A., Luvero, D., Angioli, R., Puri, L., Palumbo, M., D'Urso, G., Colaleo, F., Rapisarda, A. M. C., Carbone, I. F., Manzoli, L., Flacco, M. E., Nazzaro, G., Locci, M., Guida, M., Sardo, A. D. S., Panici, P. B., Khalil, A., Berghella, V., Bifulco, G., Scambia, G., Zullo, F., D'Antonio, F., José Rodríguez Suárez, María, Maria Gambacorti-Passerini, Zita, de Los Angeles Anaya Baz, María, Vanessa Aguilar Galán, Esther, Cuñarro López, Yolanda, Antonio De León Luis, Juan, Cueto Hernández, Ignacio, Battista Luca Schera, Giovanni, Nunzia Della Gatta, Anna, Catello Di Donna, Mariano, Giulia Lombana Marino, Maria, Simone Laganà, Antonio, Laurita Longo, Valentina, Mercado-Olivares, Felipe, Della Sala, Francesca, Cristina Rovellotti, Maria, Cesare Ianniciello, Quintino, Josè Nieto-Calvache, Albaro, Manuel Burgos-Luna, Juan, Viana, Pedro, Martinez-Varea, Alicia, S Jimenez Lopez, Jesú, Yeliz Aykanat, Alicia, DI BENEDETTO, Chiara, Henrique May Feuerschuette, Otto, Rahimli Ocakouglu, Sakine, Tustas Haberal, Esra, Augusto Moreira de Sa, Renato, Luisa Gonzalez-Duran, Maria, Concheiro Guisan, Ana, Özlem Genç, Şerife, Luengo Piqueras, Anna, Esteban Oliva, Dolore, Pelin Cil, Aylin, Gül Yapar Eyi, Elif, A Brzezinski-Sinai, Noa, Alfonso Schvartzman, Javier, Carmela Di Dedda, Maria, Garrote Molpeceres, Rebeca, Premru-Srsen, Tanja, Kornhauser-Cerar, Lilijana, A Gorina, Ksenia, T Sukhikh, Gennady, Maruotti, GIUSEPPE MARIA, Maria Chiara Rapisarda, Agnese, Floriana Carbone, Ilma, Elena Flacco, Maria, DI SPIEZIO SARDO, Attilio, Benedetti Panici, Pierluigi, Saccone G., Sen C., Di Mascio D., Galindo A., Grunebaum A., Yoshimatsu J., Stanojevic M., Kurjak A., Chervenak F., Suarez M.J.R., Gambacorti-Passerini Z.M., de los Angeles Anaya Baz M., Galan E.V.A., Lopez Y.C., Luis J.A.D.L., Hernandez I.C., Herraiz I., Villalain C., Venturella R., Rizzo G., Mappa I., Gerosolima G., Hellmeyer L., Konigbauer J., Ameli G., Frusca T., Volpe N., Schera G.B.L., Fieni S., Esposito E., Simonazzi G., Di Donna G., Youssef A., Gatta A.N.D., Di Donna M.C., Chiantera V., Buono N., Sozzi G., Greco P., Morano D., Bianchi B., Marino M.G.L., Laraud F., Ramone A., Cagnacci A., Barra F., Gustavino C., Ferrero S., Ghezzi F., Cromi A., Lagana A.S., Longo V.L., Stollagli F., Sirico A., Lanzone A., Driul L., Cecchini F., Xodo S., Rodriguez B., Mercado-Olivares F., Elkafrawi D., Sisti G., Esposito R., Coviello A., Cerbone M., Morlando M., Schiattarella A., Colacurci N., De Franciscis P., Cataneo I., Lenzi M., Sandri F., Buscemi R., Gattei G., Sala F.D., Valori E., Rovellotti M.C., Done E., Faron G., Gucciardo L., Esposito V., Vena F., Giancotti A., Brunelli R., Muzii L., Nappi L., Sorrentino F., Liberati M., Buca D., Leombroni M., Di Sebastiano F., Franchi M., Ianniciello Q.C., Garzon S., Petriglia G., Borrello L., Nieto-Calvache A.J., Burgos-Luna J.M., Kadji C., Carlin A., Bevilacqua E., Moucho M., Viana Pinto P., Figueiredo R., Morales Rosello J., Loscalzo G., Martinez-Varea A., Diago V., Jimenez Lopez J.S., Aykanat A.Y., Cosma S., Carosso A., Benedetto C., Bermejo A., Feuerschuette O.H.M., Uyaniklar O., Ocakouglu S.R., Atak Z., Gunduz R., Haberal E.T., Froessler B., Parange A., Palm P., Samardjiski I., Taccaliti C., Okuyan E., Daskalakis G., de Sa R.A.M., Pittaro A., Gonzalez-Duran M.L., Guisan A.C., Genc S.O., Zlatohlavkova B., Piqueras A.L., Oliva D.E., Cil A.P., Api O., Antsaklis P., Ples L., Kyvernitakis I., Maul H., Malan M., Lila A., Granese R., Ercoli A., Zoccali G., Villasco A., Biglia N., Madalina C., Costa E., Daelemans C., Pintiaux A., Cueto E., Hadar E., Dollinger S., Brzezinski-Sinai N.A., Huertas E., Arango P., Sanchez A., Schvartzman J.A., Cojocaru L., Turan S., Turan O., Di Dedda M.C., Molpeceres R.G., Zdjelar S., Premru-Srsen T., Kornhauser-Cerar L., Druskovic M., De Robertis V., Stefanovic V., Nupponen I., Nelskyla K., Khodjaeva Z., Gorina K.A., Sukhikh G.T., Maruotti G.M., Visentin S., Cosmi E., Ferrari J., Gatti A., Luvero D., Angioli R., Puri L., Palumbo M., D'Urso G., Colaleo F., Rapisarda A.M.C., Carbone I.F., Manzoli L., Flacco M.E., Nazzaro G., Locci M., Guida M., Sardo A.D.S., Panici P.B., Khalil A., Berghella V., Bifulco G., Scambia G., Zullo F., D'Antonio F., Mother and Child, Surgical clinical sciences, Obstetrics, and Clinical sciences
Subjects: COVID19, medicine.medical_treatment, coronavirus, COVID-19, infection, pregnancy, SARS-CoV-2, Abortion, infectious diseases, law.invention, Cohort Studies, 0302 clinical medicine, law, 3123 Gynaecology and paediatrics, Pregnancy, Obstetrics and Gynaecology, 030212 general & internal medicine, Pregnancy Complications, Infectious, 030219 obstetrics & reproductive medicine, Radiological and Ultrasound Technology, Transmission (medicine), Obstetrics, Pregnancy Outcome, Obstetrics and Gynecology, Coronavirus, SARS-COV-2, General Medicine, Disease 2019 Covid-19, Intensive care unit, 3. Good health, Hospitalization, Intensive Care Units, Maternal Mortality, Settore MED/40, Radiology Nuclear Medicine and imaging, Gestation, Female, coronavirus, Pandemics, Pregnancy, Pregnancy Complications, Infectious, Pregnancy Outcome, Respiration, Artificial, Retrospective Studies, SARS-CoV-2, COVID-19, Infant, Newborn, Intensive Care Units,Maternal Mortality, Infection, Cohort study, Adult, medicine.medical_specialty, NO, 03 medical and health sciences, medicine, Humans, Radiology, Nuclear Medicine and imaging, Pandemics, Retrospective Studies, Mechanical ventilation, business.industry, Infant, Newborn, Infant, Retrospective cohort study, medicine.disease, Respiration, Artificial, coronaviru, Reproductive Medicine, business
Abstract: WOS:000613461600006 PubMed ID: 32926494 Objectives To evaluate the maternal and perinatal outcomes of pregnancies affected by SARS-CoV-2 infection. Methods This was a multinational retrospective cohort study including women with a singleton pregnancy and laboratory-confirmed SARS-CoV-2 infection, conducted in 72 centers in 22 different countries in Europe, the USA, South America, Asia and Australia, between 1 February 2020 and 30 April 2020. Confirmed SARS-CoV-2 infection was defined as a positive result on real-time reverse-transcription polymerase chain reaction (RT-PCR) assay of nasopharyngeal swab specimens. The primary outcome was a composite measure of maternal mortality and morbidity, including admission to the intensive care unit (ICU), use of mechanical ventilation and death. Results In total, 388 women with a singleton pregnancy tested positive for SARS-CoV-2 on RT-PCR of a nasopharyngeal swab and were included in the study. Composite adverse maternal outcome was observed in 47/388 (12.1%) women; 43 (11.1%) women were admitted to the ICU, 36 (9.3%) required mechanical ventilation and three (0.8%) died. Of the 388 women included in the study, 122 (31.4%) were still pregnant at the time of data analysis. Among the other 266 women, six (19.4% of the 31 women with first-trimester infection) had miscarriage, three (1.1%) had termination of pregnancy, six (2.3%) had stillbirth and 251 (94.4%) delivered a liveborn infant. The rate of preterm birth before 37 weeks' gestation was 26.3% (70/266). Of the 251 liveborn infants, 69/251(27.5%) were admitted to the neonatal ICU, and there were five (2.0%) neonatal deaths. The overall rate of perinatal death was 4.1% (11/266). Only one (1/251, 0.4%) infant, born to a mother who tested positive during the third trimester, was found to be positive for SARS-CoV-2 on RT-PCR. Conclusions SARS-CoV-2 infection in pregnant women is associated with a 0.8% rate of maternal mortality, but an 11.1% rate of admission to the ICU. The risk of vertical transmission seems to be negligible. (C) 2020 International Society of Ultrasound in Obstetrics and Gynecology.
Published: 2021

25. LETTERS.

Author: Judlowe, Marty, Study, Alan, Runstadler Jr., Ken, Daelemans, C. Paul, Morgan, Tom, Zulauf, Gary, Webster, Jerry, Gardonia, Ken, Jones, L. R., and Otterstedt, Chris W.
Subjects: LETTERS to the editor, AUTOMOBILE parts, AUTOMOBILE repair, AUDI automobiles, AUTOMOBILE industry
Abstract: Presents letters to the editor referencing articles and topics discussed in previous issues. Quality of automobile parts manufactured in China; Problems and costs associated with the maintenance and repair of audi automobiles; Claims that General Motors's sales and marketing unit is among its greatest weaknesses.
Published: 2005

26. Maternal and perinatal outcomes in high compared to low risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection (phase 2): the World Association of Perinatal Medicine working group on coronavirus disease 2019

Author: D'Antonio, Francesco, Sen, Cihat, Mascio, Daniele Di, Galindo, Alberto, Villalain, Cecilia, Herraiz, Ignacio, Arisoy, Resul, Ovayolu, Ali, Eroğlu, Hasan, Canales, Manuel Guerra, Ladella, Subhashini, Cojocaru, Liviu, Turan, Ozhan, Turan, Sifa, Hadar, Eran, Brzezinski-Sinai, Noa A, Dollinger, Sarah, Uyaniklar, Ozlem, Ocakouglu, Sakine Rahimli, Atak, Zeliha, Premru-Srsen, Tanja, Kornhauser-Cerar, Lilijana, Druškovič, Mirjam, Ples, Liana, Gündüz, Reyhan, Ağaçayak, Elif, Schvartzman, Javier Alfonso, Malbran, Mercedes Negri, Liberati, Marco, Sebastiano, Francesca Di, Oronzi, Ludovica, Cerra, Chiara, Buca, Danilo, Cagnacci, Angelo, Ramone, Arianna, Barra, Fabio, Carosso, Andrea, Benedetto, Chiara, Cosma, Stefano, Pintiaux, Axelle, Daelemans, Caroline, Costa, Elena, Özel, Ayşegül, Muhçu, Murat, Lopez, Jesús S Jimenez, Alvarado, Clara, Piqueras, Anna Luengo, Oliva, Dolores Esteban, Schera, Giovanni Battista Luca, Volpe, Nicola, Frusca, Tiziana, Samardjiski, Igor, Simeonova, Slagjana, Papestiev, Irena Aleksioska, Hojman, Javier, Turkcuoglu, Ilgin, Cromi, Antonella, Laganà, Antonio Simone, Ghezzi, Fabio, Sirico, Angelo, Familiari, Alessandra, Scambia, Giovanni, Sukhikh, Zulfiya Khodjaeva Gennady T, Gorina, Ksenia A, de Sa, Renato Augusto Moreira, Vaz, Mariana, Feuerschuette, Otto Henrique May, Gatta, Anna Nunzia Della, Youssef, Aly, Donna, Gaetana Di, Martinez-Varea, Alicia, Loscalzo, Gabriela, Morales Roselló, José, Stefanovic, Vedran, Nupponen, Irmeli, Nelskylä, Kaisa, Ayala, Rodrigo, Molpeceres, Rebeca Garrote, Vázquez, Asunción Pino, Sandri, Fabrizio, Cataneo, Ilaria, Lenzi, Marinella, Haberal, Esra Tustas, Huertas, Erasmo, Sanchez, Amadeo, Arango, Pedro, Bermejo, Amanda, Alcantara, María Monica Gonzalez, Göynümer, Gökhan, Okuyan, Erhan, Madalina, Ciuhodaru, Guisan, Ana Concheiro, Schulte, Alejandra Martínez, Esposito, Valentina, De Robertis, Valentina, Zdjelar, Snezana, Lackovic, Milan, Mihajlovic, Sladjana, Jekova, Nelly, Saccone, Gabriele, Aslan, Mehmet Musa, Dedda, Maria Carmela Di, Chalid, Maisuri, Canache, Jose Enrique Moros, Daskalakis, George, Antsaklis, Panos, Vega, Enrique Criado, Cueto, Elisa, Taccaliti, Chiara, Aykanat, Yeliz, Özlem Genç, Şerife, Froessler, Bernd, Radulova, Petya Angelova, Morano, Danila, Bianchi, Beatrice, Marino, Maria Giulia Lombana, Meccariello, Gabriella, Rohatgi, Bindu, Schiattarella, Antonio, Morlando, Maddalena, Colacurci, Nicola, Villasco, Andrea, Biglia, Nicoletta, Marques, Ana Luiza Santos, Gatti, Alessandra, Luvero, Daniela, Angioli, Roberto, Pittaro, Alejandro, Lila, Albert, Zlatohlávková, Blanka, On the behalf of the World Association of Perinatal Medicine working group on coronavirus disease 2019, Dicle Üniversitesi, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümü, Kadın Hastalıkları ve Doğum Ana Bilim Dalı, Gündüz, Reyhan, Ağaçayak, Elif, [Belirlenecek], D'Antonio, F., Sen, C., Mascio, D. D., Galindo, A., Villalain, C., Herraiz, I., Arisoy, R., Ovayolu, A., Eroglu, H., Canales, M. G., Ladella, S., Cojocaru, L., Turan, O., Turan, S., Hadar, E., Brzezinski-Sinai, N. A., Dollinger, S., Uyaniklar, O., Ocakouglu, S. R., Atak, Z., Premru-Srsen, T., Kornhauser-Cerar, L., Druskovic, M., Ples, L., Gunduz, R., Agacayak, E., Schvartzman, J. A., Malbran, M. N., Liberati, M., Sebastiano, F. D., Oronzi, L., Cerra, C., Buca, D., Cagnacci, A., Ramone, A., Barra, F., Carosso, A., Benedetto, C., Cosma, S., Pintiaux, A., Daelemans, C., Costa, E., Ozel, A., Muhcu, M., Lopez, J. S. J., Alvarado, C., Piqueras, A. L., Oliva, D. E., Schera, G. B. L., Volpe, N., Frusca, T., Samardjiski, I., Simeonova, S., Papestiev, I. A., Hojman, J., Turkcuoglu, I., Cromi, A., Lagana, A. S., Ghezzi, F., Sirico, A., Familiari, A., Scambia, G., Sukhikh, Z. K. G. T., Gorina, K. A., de Sa, R. A. M., Vaz, M., Feuerschuette, O. H. M., Gatta, A. N. D., Youssef, A., Donna, G. D., Martinez-Varea, A., Loscalzo, G., Rosello, J. M., Stefanovic, V., Nupponen, I., Nelskyla, K., Ayala, R., Molpeceres, R. G., Vazquez, A. P., Sandri, F., Cataneo, I., Lenzi, M., Haberal, E. T., Huertas, E., Sanchez, A., Arango, P., Bermejo, A., Alcantara, M. M. G., Goynumer, G., Okuyan, E., Madalina, C., Guisan, A. C., Schulte, A. M., Esposito, V., De Robertis, V., Zdjelar, S., Lackovic, M., Mihajlovic, S., Jekova, N., Saccone, G., Aslan, M. M., Dedda, M. C. D., Chalid, M., Canache, J. E. M., Daskalakis, G., Antsaklis, P., Vega, E. C., Cueto, E., Taccaliti, C., Aykanat, Y., Ozlem Genc, S., Froessler, B., Radulova, P. A., Morano, D., Bianchi, B., Marino, M. G. L., Meccariello, G., Rohatgi, B., Schiattarella, A., Morlando, M., Colacurci, N., Villasco, A., Biglia, N., Marques, A. L. S., Gatti, A., Luvero, D., Angioli, R., Pittaro, A., Lila, A., and Zlatohlavkova, B.
Subjects: Neonatal intensive care unit, coronavirus, Miscarriage, law.invention, 0302 clinical medicine, Retrospective Studie, law, Pregnancy, Neonatal, Severe acute respiratory syndrome coronavirus 2, 030212 general & internal medicine, Pregnancy Complications, Infectious, 030219 obstetrics & reproductive medicine, coronavirus disease 2019, infection, pregnancy, severe acute respiratory syndrome coronavirus 2, Asia, Australia, Europe, Female, Humans, Infant, Newborn, Intensive Care Units, Neonatal, Retrospective Studies, SARS-CoV-2, South America, COVID-19, Pregnancy Outcome, Coronavirus disease 2019, Obstetrics, Incidence (epidemiology), Infectious, General Medicine, Intensive care unit, 3. Good health, Intensive Care Units, Covid-19, Infection, Human, medicine.medical_specialty, 03 medical and health sciences, medicine, business.industry, Infant, Retrospective cohort study, Odds ratio, medicine.disease, Newborn, Confidence interval, coronaviru, Pregnancy Complications, Coronavirus, Pregnancy Complications, Infectiou, business
Abstract: BACKGROUND: It has still to be ascertained whether severe acute respiratory syndrome coronavirus 2 infection in pregnancy is associated with worse maternal and fetal outcomes compared to low risk gestations. OBJECTIVE: This study aimed to evaluate maternal and perinatal outcomes in high- and low-risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection. STUDY DESIGN: This was a multinational retrospective cohort study involving women with laboratory-confirmed severe acute respiratory syndrome coronavirus 2 infection from 76 centers from 25 countries in Europe, the United States, South America, Asia, and Australia from April 4, 2020, to October 28, 2020. The primary outcome was a composite measure of maternal mortality and morbidity, including admission to the intensive care unit, use of mechanical ventilation, or death. The secondary outcome was a composite measure of adverse perinatal outcome, including miscarriage, fetal loss, neonatal and perinatal death, and admission to the neonatal intensive care unit. All outcomes were assessed in high- and low-risk pregnancies. Pregnancies were considered high risk in case of either preexisting chronic medical conditions in pregnancy or obstetrical disorders occurring in pregnancy. The Fisher exact test and logistic regression analysis were used to analyze the data. RESULTS: A total of 887 singleton pregnancies who tested positive for severe acute respiratory syndrome coronavirus 2 infection using reverse transcription-polymerase chain reaction of nasal and pharyngeal swab specimens were included in the study. The risk of composite adverse maternal outcomes was higher in high-risk pregnancies than in low-risk pregnancies (odds ratio, 1.52; 95% confidence interval, 1.03-2.24; P=.035). In addition, women carrying high-risk pregnancies were at higher risk of hospital admission (odds ratio, 1.48; 95% confidence interval, 1.07-2.04; P=.002), presence of severe respiratory symptoms (odds ratio, 2.13; 95% confidence interval, 0.41-3.21; P=.001), admission to the intensive care unit (odds ratio, 2.63; 95% confidence interval, 1.42-4.88), and invasive mechanical ventilation (odds ratio, 2.65; 95% confidence interval, 1.19-5.94; P=.002). When exploring perinatal outcomes, high-risk pregnancies were at high risk of adverse perinatal outcomes (odds ratio, 1.78; 95% confidence interval, 0.15-2.72; P=.009). However, such association was mainly because of the higher incidence of miscarriage in high-risk pregnancies compared with that in low-risk pregnancies (5.3% vs 1.6%, P=.008); furthermore, there was no difference in other explored outcomes between the 2 study groups. At logistic regression analysis, maternal age (odds ratio, 1.12; 95% confidence interval, 1.02-1.22; P=.023) and high-risk pregnancy (odds ratio, 4.21; 95% confidence interval, 3.90-5.11; P
Published: 2021

27. Variations of cervical head entrapment in vaginal breech births: New insights on how to prevent, manage and resolve.

Author: Walker S, Daelemans C, Gerhard-Nielsen K, Das S, and Page L
Subjects: Female, Humans, Pregnancy, Cervix Uteri, Uterine Prolapse, Breech Presentation therapy
Abstract: This paper presents a novel, systematic way to understand the causes of cervical head entrapment in vaginal breech births, and new insights into management. Three different types of cervical head entrapment are described, with detailed illustrations: unpredictable and potentially catastrophic, manageable, and preventable. The first affects preterm and growth-restricted fetuses. The second involves some degree of uterine prolapse. The third may result from prolonged head entrapment at the pelvic inlet, leaving time for cervical contraction or oedematous entrapment. Traditional and innovative strategies to resolve and prevent this complication are described and illustrated, with suggestions for further research., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Author(s). Published by Elsevier B.V. All rights reserved.)
Published: 2024
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28. Did we observe changes in obstetric interventions in SARS-CoV-2 infected pregnant women at the beginning of COVID-pandemic in Belgium? Results of a nationwide population-based study.

Author: Vercoutere A, Racapé J, Zina MJ, Alexander S, Benoit K, Boulvain M, Goemaes R, Leroy C, Van Leeuw V, Costa E, Derisbourg S, Goffard JC, Roelens K, Vandenberghe G, and Daelemans C
Abstract: Background: Pregnant women are more vulnerable to the severe effects of COVID-19 compared to their non-pregnant peers. Early in the pandemic, there was a rise in cesarean deliveries and preterm births among infected pregnant women. This study aims to evaluate whether there were any changes in obstetric interventions during the first two waves of the pandemic in Belgium., Methods: Between March 2020 and February 2021, the Belgian Obstetric Surveillance System (B.OSS) conducted an extensive, nationwide population-based registry study, that included nearly all births to women with a confirmed SARS-CoV-2 infection within six weeks before hospitalization in Belgium. The perinatal outcomes of these women were analyzed and compared with pre-pandemic regional perinatal data., Results: A total of 923 SARS-CoV-2 infected pregnant women were admitted to the hospital; 9.3 % were hospitalized for severe COVID-19, while the remaining were hospitalized for obstetric reasons. Infected women had a higher median BMI, a higher incidence of diabetes, and a greater proportion were overweight or obese compared to the reference group (p < 0.001). While the majority of women gave birth vaginally, symptomatic women and those with a severe infection had slightly higher rates of cesarean delivery, though not statistically significant after adjusting for confounders. Only severely ill women had an increased risk of preterm delivery (aOR 2.3; 95 %CI [1.2-2.5]; p = 0.02) and of induced labor (OR 1.8; 95 %CI [1.1-2.8]; p = 0.01). The use of general anesthesia for cesarean delivery was more common in the infected group (OR 2.6; 95 %CI [1.6-4.1]; p < 0.001)., Conclusions: Obstetric interventions, such as cesarean delivery and induction, remained at pre-pandemic levels. However, a SARS-CoV-2 infection appears to have increased medically induced preterm delivery and the use of general anesthesia for cesarean delivery., Competing Interests: The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.The authors declare no conflict of interest., (© 2024 The Authors.)
Published: 2024
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29. Seroprevalence and placental transfer of SARS-CoV-2 antibodies in unvaccinated pregnant women.

Author: Vercoutere A, Zina MJ, Telis M, Goffard JC, Boulvain M, de Doncker L, Derisbourg S, Houben S, Delforge ML, Daelemans C, and Kelen D
Subjects: Humans, Female, Pregnancy, Seroepidemiologic Studies, Adult, Infant, Newborn, Spike Glycoprotein, Coronavirus immunology, Placenta immunology, Young Adult, Infectious Disease Transmission, Vertical, Maternal-Fetal Exchange immunology, COVID-19 immunology, COVID-19 epidemiology, SARS-CoV-2 immunology, Antibodies, Viral blood, Immunoglobulin G blood, Pregnancy Complications, Infectious epidemiology, Pregnancy Complications, Infectious immunology
Abstract: Purpose: Pregnant women are at risk of severe SARS-CoV-2 infection, potentially leading to obstetric and neonatal complications. Placental transfer of antibodies directed to SARS-CoV-2 may be protective against neonatal COVID-19, but this remains to be studied. We aimed to determine the seroprevalence of SARS-CoV-2 antibodies in a population of unvaccinated pregnant women and to determine the placental transfer of these antibodies., Methodology: A total of 1197 unvaccinated women with mostly unknown pre-study SARS-CoV-2 infection status, were tested at delivery for SARS-CoV-2 spike protein IgG antibodies during the first year of the pandemic. Umbilical cord samples were collected and assessed for seropositivity if the mother was seropositive. Maternal characteristics, pregnancy and neonatal outcomes and data on SARS-CoV-2 infection were extracted from medical records., Results: Specific IgG were detected in 258 women (21.6%). A significant placental transfer to the newborn was observed in 81.3% of cases. The earlier in the 2nd and 3rd trimesters that the mother had contracted the disease and the more symptomatic she was, the greater the likelihood of transplacental transfer of IgG to her newborn., Conclusion: Approximately one in five women had detectable anti-SARS-CoV-2 spike protein IgG antibodies at delivery during the first year of the pandemic, and these antibodies were significantly transferred to their fetuses. This research provides further evidence to better understand the dynamics of the placental transfer of SARS-CoV-2 IgG antibodies from mothers to their newborns, which is necessary to improve vaccination strategies., (© 2024. The Author(s).)
Published: 2024
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30. Influence of organizational factors on the offer and success rate of a trial of labor after cesarean section in Belgium: an ecological study.

Author: Vandenberghe G, Vercoutere A, Cuvellier N, Van Oost E, Leroy C, Goemaes R, Laubach M, Boulvain M, and Daelemans C
Subjects: Pregnancy, Infant, Newborn, Female, Humans, Belgium, Trial of Labor, Delivery, Obstetric, Cesarean Section, Uterine Rupture
Abstract: Background: Trial of Labor After Cesarean is an important strategy for reducing the overall rate of cesarean delivery. Offering the option of vaginal delivery to a woman with a history of cesarean section requires the ability to manage a potential uterine rupture quickly and effectively. This requires infrastructure and organization of the maternity unit so that the decision-to-delivery interval is as short as possible when uterine rupture is suspected. We hypothesize that the organizational characteristics of maternity units in Belgium have an impact on their proposal and success rates of trial of labour after cesarean section., Methods: We collected data on the organizational characteristics of Belgian maternity units using an online questionnaire. Data on the frequency of cesarean section, trial of labor and vaginal birth after cesarean section were obtained from regional perinatal registries. We analyzed the determinants of the proposal and success of trial of labor after cesarean section and report the associations as mean proportions., Results: Of the 101 maternity units contacted, 97 responded to the questionnaire and data from 95 was included in the analysis. Continuous on-site presence of a gynecologist and an anesthetist was associated with a higher proportion of trial of labor after cesarean section, compared to units where staff was on-call from home (51% versus 46%, p = 0.04). There is a non-significant trend towards more trial of labor after cesarean section in units with an operating room in or near the delivery unit and a shorter transfer time, in larger units (> 1500 deliveries/year) and in units with a neonatal intensive care unit. The proposal of trial of labor after cesarean section and its success was negatively correlated to the number of cesarean section in the maternity unit (Spearman' rho = 0.50 and 0.42, p value < 0.001)., Conclusions: Organizational differences in maternity units appear to affect the proposal of trial of labor after cesarean section. Addressing these organizational factors may not be sufficient to change practice, given that general tendency to perform a cesarean section in the maternity unit is the main contributor to the percentage of trial of labor after cesarean., (© 2023. BioMed Central Ltd., part of Springer Nature.)
Published: 2023
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31. Late miscarriage and stillbirth in asymptomatic and symptomatic hospitalised pregnant women in Belgium during the first and second waves of COVID-19: a prospective nationwide population-based study.

Author: Vercoutere A, Zina MJ, Benoit K, Costa E, Derisbourg S, Boulvain M, Roelens K, Vandenberghe G, and Daelemans C
Subjects: Adolescent, Female, Humans, Pregnancy, Belgium epidemiology, Fetal Death, Placenta pathology, Pregnant People, Prospective Studies, SARS-CoV-2, Adult, Abortion, Spontaneous epidemiology, COVID-19 epidemiology, Pregnancy Complications, Infectious, Stillbirth epidemiology
Abstract: Background: Stillbirth has been recognized as a possible complication of a SARS-CoV-2 infection during pregnancy, probably due to destructive placental lesions (SARS-CoV-2 placentitis). The aim of this work is to analyse stillbirth and late miscarriage cases in unvaccinated pregnant women infected with SARS-CoV-2 during the first two waves (wild-type period) in Belgium., Methods: Stillbirths and late miscarriages in our prospective observational nationwide registry of SARS-CoV-2 infected pregnant women (n = 982) were classified by three authors using a modified WHO-UMC classification system for standardized case causality assessment., Results: Our cohort included 982 hospitalised pregnant women infected with SARS-CoV-2, with 23 fetal demises (10 late miscarriages from 12 to 22 weeks of gestational age and 13 stillbirths). The stillbirth rate was 9.5‰ for singleton pregnancies and 83.3‰ for multiple pregnancies, which seems higher than for the background population (respectively 5.6‰ and 13.8‰). The agreement between assessors about the causal relationship with SARS-Cov-2 infection was fair (global weighted kappa value of 0.66). Among these demises, 17.4% (4/23) were "certainly" attributable to SARS-CoV-2 infection, 13.0% (3/23) "probably" and 30.4% (7/23) "possibly". Better agreement in the rating was noticed when pathological examination of the placenta and identification of the virus were available, underlining the importance of a thorough investigation in case of intra-uterine fetal demise., Conclusions: SARS-CoV-2 causality assessment of late miscarriage and stillbirth cases in our Belgian nationwide case series has shown that half of the fetal losses could be attributable to SARS-CoV-2. We must consider in future epidemic emergencies to rigorously investigate cases of intra-uterine fetal demise and to store placental tissue and other material for future analyses., (© 2023. The Author(s).)
Published: 2023
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32. Training for breech deliveries with the mother in an upright position: An innovative adaptation of a simulation model.

Author: Farin A, Ceccaldi PF, Tapie L, Derisbourg S, Desseauve D, and Daelemans C
Subjects: Pregnancy, Female, Humans, Mothers, Delivery, Obstetric education, Parturition, Breech Presentation therapy, Midwifery
Abstract: Background: Delivery of a breech baby with the mother in an upright position or on all fours has gained a renewed interest. In these positions, the obstetrician or midwife needs to learn new landmarks and maneuvers. A realistic simulation model would be a valuable adjunct for breech on all fours teaching programs., Material and Methods: This article describes the simulation model and training program we have developed to train an interprofessional team to assist breech births when the mother is on all fours. A questionnaire was used to evaluate the realism of the adapted mannequin and the impact of training on the confidence level of the participants., Results: On a Likert scale of 1 to 5, 92% of participants agreed or strongly agreed that the adapted mannequin used was realistic for training obstetric maneuvers for complicated breech births. After training, their confidence level supporting a breech birth in an upright position rose from an average of 2.5 to 5.7 on a scale of 1 to 10., Conclusion: Learning the skills for breech deliveries on all fours is made possible by targeted training with this adapted simulation model., Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2022 The Authors. Published by Elsevier B.V. All rights reserved.)
Published: 2023
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33. [Trial of labour after c-section in 2022: a narrative review of the literature].

Author: Desseauve D, Legardeur H, Haydar A, Vial Y, Jastrow N, and Daelemans C
Subjects: Female, Pregnancy, Humans, Trial of Labor, Delivery, Obstetric, Parturition, Cesarean Section, Vaginal Birth after Cesarean
Abstract: One in three women in Switzerland gives birth by c-section. This high incidence of c-section frequently exposes obstetricians and midwives to the management of women and their deliveries with a scarred uterus. The decision of couples is multifactorial, but the information that will be delivered by their gynaecologist will necessarily influence the delivery route choice. We propose to review the international recommendations and the literature on the subject, to provide the couple and the attending physician with elements of reflection to guide the choice of delivery route or to monitor adequately when attempting vaginal delivery after a caesarean section., Competing Interests: Les auteurs n’ont déclaré aucun conflit d’intérêts en relation avec cet article.
Published: 2022
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34. Internal podalic version of second twin: Improving feet identification using a simulation model.

Author: Desseauve D, Daelemans C, Farin A, Jauvion IBM, and Ceccaldi PF
Subjects: Delivery, Obstetric education, Female, Humans, Pregnancy, Pregnancy, Twin, Twins, Breech Presentation, Version, Fetal education
Abstract: Background: Podalic version and breech extraction require high obstetrical expertise. Identifying fetal extremities is the first crucial step for trainees. When this skill is not polished enough, it increases the inter-twin delivery interval and can even jeopardize the whole manoeuver., Material and Methods: We present a model for simulating and training this specific skill, with obstetrical mannequin, and 3D printed hands and feet. Five feet and five hands (five rights and five lefts of each one) were printed in 3D after initial ultrasound acquisition of a near term fetus. Each foot and hand, was individually set in a condom filled with 100 cc of water and closed with a knot. A Sophie's Mum Birth Simulator Version 4.0 de MODEL-med was placed on the edge of the table. Each hand and foot was inserted into the pelvic mannequin. An evaluation of the students' skills using this model was performed. A significant reduction of the global mean to extract the first foot and all the feet was noticed at three month of interval., Conclusion: This model is an option to train and assess a crucial skill for version and breech extraction., (Copyright © 2022 The Author(s). Published by Elsevier B.V. All rights reserved.)
Published: 2022
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35. Implementation of fetal clinical exome sequencing: Comparing prospective and retrospective cohorts.

Author: Marangoni M, Smits G, Ceysens G, Costa E, Coulon R, Daelemans C, De Coninck C, Derisbourg S, Gajewska K, Garofalo G, Gounongbe C, Guizani M, Holoye A, Houba C, Makhoul J, Norgaard C, Regnard C, Romée S, Soto J, Stagel-Trabbia A, Van Rysselberge M, Vercoutere A, Zaytouni S, Bouri S, D'Haene N, D'Onle D, Dugauquier C, Racu ML, Rocq L, Segers V, Verocq C, Avni EF, Cassart M, Massez A, Blaumeiser B, Brischoux-Boucher E, Bulk S, De Ravel T, Debray G, Dimitrov B, Janssens S, Keymolen K, Laterre M, van Berkel K, Van Maldergem L, Vandernoot I, Vilain C, Donner C, Tecco L, Thomas D, Désir J, Abramowicz M, and Migeotte I
Subjects: Chromosomal Proteins, Non-Histone, Female, Fetus abnormalities, Fetus diagnostic imaging, Humans, Phosphoproteins, Pregnancy, Prenatal Diagnosis, Retrospective Studies, Exome Sequencing, Exome genetics, Ultrasonography, Prenatal
Abstract: Purpose: We compared the diagnostic yield of fetal clinical exome sequencing (fCES) in prospective and retrospective cohorts of pregnancies presenting with anomalies detected using ultrasound. We evaluated factors that led to a higher diagnostic efficiency, such as phenotypic category, clinical characterization, and variant analysis strategy., Methods: fCES was performed for 303 fetuses (183 ongoing and 120 ended pregnancies, in which chromosomal abnormalities had been excluded) using a trio/duo-based approach and a multistep variant analysis strategy., Results: fCES identified the underlying genetic cause in 13% (24/183) of prospective and 29% (35/120) of retrospective cases. In both cohorts, recessive heterozygous compound genotypes were not rare, and trio and simplex variant analysis strategies were complementary to achieve the highest possible diagnostic rate. Limited prenatal phenotypic information led to interpretation challenges. In 2 prospective cases, in-depth analysis allowed expansion of the spectrum of prenatal presentations for genetic syndromes associated with the SLC17A5 and CHAMP1 genes., Conclusion: fCES is diagnostically efficient in fetuses presenting with cerebral, skeletal, urinary, or multiple anomalies. The comparison between the 2 cohorts highlights the importance of providing detailed phenotypic information for better interpretation and prenatal reporting of genetic variants., Competing Interests: Conflict of Interest The authors declare no conflict of interest., (Copyright © 2021 American College of Medical Genetics and Genomics. Published by Elsevier Inc. All rights reserved.)
Published: 2022
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36. Iron Deficiency Is a Risk Factor for Thyroid Dysfunction During Pregnancy: A Population-Based Study in Belgium.

Author: Moreno-Reyes R, Corvilain B, Daelemans C, Wolff F, Fuentes Peña C, and Vandevijvere S
Subjects: Adult, Belgium epidemiology, Female, Humans, Pregnancy, Risk Factors, Thyroid Function Tests, Iron Deficiencies epidemiology, Pregnancy Complications epidemiology, Thyroid Diseases epidemiology
Abstract: Background: Iron deficiency affects thyroid hormone synthesis by impairing the activity of the heme-dependent thyroid peroxidase. The prevalence of iron deficiency is elevated particularly in pregnant women. This study aimed to investigate the effects of iron status on thyroid function in a nationally representative sample of mildly iodine-deficient pregnant women. Methods: The study population comprised a sample of pregnant women in Belgium during the first and third trimesters of pregnancy ( n = 1241). Women were selected according to a multistage proportional-to-size stratified and clustered sampling design. Urine and blood samples were collected, and a questionnaire was completed face to face with the study nurse. Concentrations of free thyroxine (fT4), total thyroxine (T4), free triiodothyronine, thyrotropin (TSH), thyroglobulin (Tg), thyroid peroxidase antibodies, Tg antibodies, hemoglobin, serum ferritin (SF), soluble transferrin receptor, urinary iodine concentrations (UICs) were measured and body iron stores (BIS) were calculated. Results: Median UICs were 117 and 132 μg/L in the first and third trimesters of pregnancy, respectively ( p < 0.05). The frequency of SF <15 μg/L was 6.2% in the first trimester and 39.6% in the third trimester of pregnancy ( p < 0.05). UIC was a significant predictor of serum Tg concentrations ( p < 0.01) but not of thyroid hormone or TSH concentrations. The frequency of fT4
Published: 2021
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37. First trimester ultrasound prediction of velamentous cord insertions: a prospective study.

Author: Derisbourg S, Boulay A, Lamy C, Barlow P, Van Rysselberge M, Thomas D, Rozenberg S, and Daelemans C
Subjects: Female, Humans, Placenta diagnostic imaging, Pregnancy, Pregnancy Trimester, First, Prospective Studies, Umbilical Cord diagnostic imaging, Ultrasonography, Prenatal, Vasa Previa
Abstract: Introduction: The marginal and velamentous cord insertions complicate around 8% of pregnancies and are at higher risk of adverse perinatal outcomes. Their visualisation seems to decrease with advancing gestational age. Our aim was to analyse whether an umbilical cord insertion in the lower third of the uterus during the first trimester could predict abnormal cord insertions later in pregnancy., Methods: This was a prospective multicentre study in two hospitals. During the first trimester, the cord insertions were inspected as well as their location (lower third of the uterus or not). Finally, all cord insertions were described at delivery., Results: During the study period the cord insertion was described in 1620 patients of which 87.7% had a normal cord insertion, 11.9% ( n = 192) a low cord insertion, and in 3.8% the insertion could not be situated. We find that 4.7% of those who have a low-lying cord insertion versus 0.7% in the normal cord insertion group during the first trimester will have a velamentous cord insertion subsequently (OR = 6.67; 95% CI = 2.67-16.63)., Conclusion: The detection of a low lying umbilical cord insertion during the first-trimester ultrasound can help to predict an abnormal cord insertion at delivery particularly a velamentous cord insertion.
Published: 2021
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38. Maternal and perinatal outcomes in high compared to low risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection (phase 2): the World Association of Perinatal Medicine working group on coronavirus disease 2019.

Author: D'Antonio F, Sen C, Mascio DD, Galindo A, Villalain C, Herraiz I, Arisoy R, Ovayolu A, Eroğlu H, Canales MG, Ladella S, Cojocaru L, Turan O, Turan S, Hadar E, Brzezinski-Sinai NA, Dollinger S, Uyaniklar O, Ocakouglu SR, Atak Z, Premru-Srsen T, Kornhauser-Cerar L, Druškovič M, Ples L, Gündüz R, Ağaçayak E, Schvartzman JA, Malbran MN, Liberati M, Sebastiano FD, Oronzi L, Cerra C, Buca D, Cagnacci A, Ramone A, Barra F, Carosso A, Benedetto C, Cosma S, Pintiaux A, Daelemans C, Costa E, Özel A, Muhçu M, Lopez JSJ, Alvarado C, Piqueras AL, Oliva DE, Schera GBL, Volpe N, Frusca T, Samardjiski I, Simeonova S, Papestiev IA, Hojman J, Turkcuoglu I, Cromi A, Laganà AS, Ghezzi F, Sirico A, Familiari A, Scambia G, Sukhikh ZKGT, Gorina KA, de Sa RAM, Vaz M, Feuerschuette OHM, Gatta AND, Youssef A, Donna GD, Martinez-Varea A, Loscalzo G, Morales Roselló J, Stefanovic V, Nupponen I, Nelskylä K, Ayala R, Molpeceres RG, Vázquez AP, Sandri F, Cataneo I, Lenzi M, Haberal ET, Huertas E, Sanchez A, Arango P, Bermejo A, Alcantara MMG, Göynümer G, Okuyan E, Madalina C, Guisan AC, Schulte AM, Esposito V, De Robertis V, Zdjelar S, Lackovic M, Mihajlovic S, Jekova N, Saccone G, Aslan MM, Dedda MCD, Chalid M, Canache JEM, Daskalakis G, Antsaklis P, Vega EC, Cueto E, Taccaliti C, Aykanat Y, Özlem Genç Ş, Froessler B, Radulova PA, Morano D, Bianchi B, Marino MGL, Meccariello G, Rohatgi B, Schiattarella A, Morlando M, Colacurci N, Villasco A, Biglia N, Marques ALS, Gatti A, Luvero D, Angioli R, Pittaro A, Lila A, and Zlatohlávková B
Subjects: Asia, Australia, Europe, Female, Humans, Infant, Newborn, Intensive Care Units, Neonatal, Pregnancy, Retrospective Studies, SARS-CoV-2, South America, COVID-19, Pregnancy Complications, Infectious diagnosis, Pregnancy Outcome epidemiology
Abstract: Background: It has still to be ascertained whether severe acute respiratory syndrome coronavirus 2 infection in pregnancy is associated with worse maternal and fetal outcomes compared to low risk gestations., Objective: This study aimed to evaluate maternal and perinatal outcomes in high- and low-risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection., Study Design: This was a multinational retrospective cohort study involving women with laboratory-confirmed severe acute respiratory syndrome coronavirus 2 infection from 76 centers from 25 countries in Europe, the United States, South America, Asia, and Australia from April 4, 2020, to October 28, 2020. The primary outcome was a composite measure of maternal mortality and morbidity, including admission to the intensive care unit, use of mechanical ventilation, or death. The secondary outcome was a composite measure of adverse perinatal outcome, including miscarriage, fetal loss, neonatal and perinatal death, and admission to the neonatal intensive care unit. All outcomes were assessed in high- and low-risk pregnancies. Pregnancies were considered high risk in case of either preexisting chronic medical conditions in pregnancy or obstetrical disorders occurring in pregnancy. The Fisher exact test and logistic regression analysis were used to analyze the data., Results: A total of 887 singleton pregnancies who tested positive for severe acute respiratory syndrome coronavirus 2 infection using reverse transcription-polymerase chain reaction of nasal and pharyngeal swab specimens were included in the study. The risk of composite adverse maternal outcomes was higher in high-risk pregnancies than in low-risk pregnancies (odds ratio, 1.52; 95% confidence interval, 1.03-2.24; P=.035). In addition, women carrying high-risk pregnancies were at higher risk of hospital admission (odds ratio, 1.48; 95% confidence interval, 1.07-2.04; P=.002), presence of severe respiratory symptoms (odds ratio, 2.13; 95% confidence interval, 0.41-3.21; P=.001), admission to the intensive care unit (odds ratio, 2.63; 95% confidence interval, 1.42-4.88), and invasive mechanical ventilation (odds ratio, 2.65; 95% confidence interval, 1.19-5.94; P=.002). When exploring perinatal outcomes, high-risk pregnancies were at high risk of adverse perinatal outcomes (odds ratio, 1.78; 95% confidence interval, 0.15-2.72; P=.009). However, such association was mainly because of the higher incidence of miscarriage in high-risk pregnancies compared with that in low-risk pregnancies (5.3% vs 1.6%, P=.008); furthermore, there was no difference in other explored outcomes between the 2 study groups. At logistic regression analysis, maternal age (odds ratio, 1.12; 95% confidence interval, 1.02-1.22; P=.023) and high-risk pregnancy (odds ratio, 4.21; 95% confidence interval, 3.90-5.11; P<.001) were independently associated with adverse maternal outcomes., Conclusion: High-risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection were at higher risk of adverse maternal outcomes than low-risk pregnancies complicated by severe acute respiratory syndrome coronavirus 2 infection., (Copyright © 2021. Published by Elsevier Inc.)
Published: 2021
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39. Using simulation team training with human's factors components in obstetrics to improve patient outcome: A review of the literature.

Author: Bogne Kamdem V, Daelemans C, Englert Y, Morin F, and Sansregret A
Subjects: Clinical Competence, Female, Humans, Infant, Newborn, Maternal Mortality, Patient Care Team, Pregnancy, Prospective Studies, Obstetrics education, Simulation Training
Abstract: Objective: to assess the evidence from multidisciplinary simulation team training in obstetrics that integrates human's factors components on patient outcome., Introduction: It has been stated that simulation-based education has the potential to improve technical and nontechnical skills. Reports from enquiries into maternal and newborn adverse outcomes, highlight that the majority of incidents are due to a breakdown of communication and a lack of crisis resource management skills (CRM). It is therefore reasonable to think that a better training on teamwork based on simulation will ultimately improve obstetrics care. In order to explore further that idea, we conducted a literature review on patient outcome after a multidisciplinary simulation training in obstetrics., Method: Pubmed, Advances in health sciences education, BMC in medical education, BMC in pregnancy and Childbirth, BMJ open, BMJ Simulation and technology enhanced learning were searched from inception to May 2020 for full-text publications in English on interprofessional, multidisciplinary, obstetrics, simulation training, non-technical skills, CRM. Searches were limited to studies with a report on patient outcome after a multidisciplinary simulation program that included elements of CRM., Result: Out of the ten studies selected in our review, five were single site before and after prospective studies and five were cluster before and after randomized trials. All the single site studies reported a positive outcome in low and high resource countries. Three single site studies reported a reduction between 41 and 50 % of blood transfusion after simulation team training. Two single studies reported a reduction of maternal mortality by 34 % and a decrease in an adverse obstetrics index outcome from 0.052 to 0.048 with a p-value of 0.05. Cluster studies showed either no change or some improvement in patient outcomes such as a 37 % improvement on weighted obstetrics adverse outcome, a 17 % reduction in the incidence of PPH and a 47 % reduction in the incidence of retained placenta. Stillbirths rate was reduced by 34 % while newborn deaths was down by 62 %. There was also a 15 % reduction of maternal mortality in favor of the trained team after adjustment to the secular mortality trend. Neonatal death from 24 weeks during the first 24 h was also reduced by 83 % in the intervention site compare with an increase by 18 % in the control site., Conclusion: There is evidence that simulation team training that includes CRM is associated with better patient outcome. In order to consolidate this finding, appropriate methodology should be used in future studies with the support of health authorities., Competing Interests: Declaration of Competing Interest All authors do not have any competing interests., (Copyright © 2021 Elsevier B.V. All rights reserved.)
Published: 2021
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40. Risk factors associated with adverse fetal outcomes in pregnancies affected by Coronavirus disease 2019 (COVID-19): a secondary analysis of the WAPM study on COVID-19.

Author: Di Mascio D, Sen C, Saccone G, Galindo A, Grünebaum A, Yoshimatsu J, Stanojevic M, Kurjak A, Chervenak F, Rodríguez Suárez MJ, Gambacorti-Passerini ZM, Baz MLAA, Aguilar Galán EV, López YC, De León Luis JA, Hernández IC, Herraiz I, Villalain C, Venturella R, Rizzo G, Mappa I, Gerosolima G, Hellmeyer L, Königbauer J, Ameli G, Frusca T, Volpe N, Luca Schera GB, Fieni S, Esposito E, Simonazzi G, Di Donna G, Youssef A, Della Gatta AN, Di Donna MC, Chiantera V, Buono N, Sozzi G, Greco P, Morano D, Bianchi B, Lombana Marino MG, Laraud F, Ramone A, Cagnacci A, Barra F, Gustavino C, Ferrero S, Ghezzi F, Cromi A, Laganà AS, Laurita Longo V, Stollagli F, Sirico A, Lanzone A, Driul L, Cecchini D F, Xodo S, Rodriguez B, Mercado-Olivares F, Elkafrawi D, Sisti G, Esposito R, Coviello A, Cerbone M, Morlando M, Schiattarella A, Colacurci N, De Franciscis P, Cataneo I, Lenzi M, Sandri F, Buscemi R, Gattei G, Sala FD, Valori E, Rovellotti MC, Done E, Faron G, Gucciardo L, Esposito V, Vena F, Giancotti A, Brunelli R, Muzii L, Nappi L, Sorrentino F, Vasciaveo L, Liberati M, Buca D, Leombroni M, Di Sebastiano F, Di Tizio L, Gazzolo D, Franchi M, Ianniciello QC, Garzon S, Petriglia G, Borrello L, Nieto-Calvache AJ, Burgos-Luna JM, Kadji C, Carlin A, Bevilacqua E, Moucho M, Pinto PV, Figueiredo R, Morales Roselló J, Loscalzo G, Martinez-Varea A, Diago V, Jimenez Lopez JS, Aykanat AY, Cosma S, Carosso A, Benedetto C, Bermejo A, May Feuerschuette OH, Uyaniklar O, Ocakouglu SR, Atak Z, Gündüz R, Haberal ET, Froessler B, Parange A, Palm P, Samardjiski I, Taccaliti C, Okuyan E, Daskalakis G, Moreira de Sa RA, Pittaro A, Gonzalez-Duran ML, Guisan AC, Genç ŞÖ, Zlatohlávková B, Piqueras AL, Oliva DE, Cil AP, Api O, Antsaklis P, Ples L, Kyvernitakis I, Maul H, Malan M, Lila A, Granese R, Ercoli A, Zoccali G, Villasco A, Biglia N, Madalina C, Costa E, Daelemans C, Pintiaux A, Cueto E, Hadar E, Dollinger S, Brzezinski Sinai NA, Huertas E, Arango P, Sanchez A, Schvartzman JA, Cojocaru L, Turan S, Turan O, Di Dedda MC, Molpeceres RG, Zdjelar S, Premru-Srsen T, Cerar LK, Druškovič M, De Robertis V, Stefanovic V, Nupponen I, Nelskylä K, Khodjaeva Z, Gorina KA, Sukhikh GT, Maruotti GM, Visentin S, Cosmi E, Ferrari J, Gatti A, Luvero D, Angioli R, Puri L, Palumbo M, D'Urso G, Colaleo F, Chiara Rapisarda AM, Carbone IF, Mollo A, Nazzaro G, Locci M, Guida M, Di Spiezio Sardo A, Panici PB, Berghella V, Flacco ME, Manzoli L, Bifulco G, Scambia G, Zullo F, and D'Antonio F
Subjects: COVID-19, COVID-19 Testing, COVID-19 Vaccines, Clinical Laboratory Techniques, Cohort Studies, Coronavirus Infections diagnosis, Coronavirus Infections epidemiology, Female, Gestational Age, Humans, Infant, Newborn, Infant, Premature, Infectious Disease Transmission, Vertical statistics & numerical data, Pandemics, Pneumonia, Viral diagnosis, Pneumonia, Viral epidemiology, Pregnancy, Pregnancy Complications, Infectious epidemiology, Pregnancy Outcome, Reverse Transcriptase Polymerase Chain Reaction, Risk Factors, SARS-CoV-2, Abortion, Spontaneous epidemiology, Betacoronavirus genetics, Betacoronavirus isolation & purification, Coronavirus Infections complications, Fetal Death, Perinatal Death, Pneumonia, Viral complications, Pregnancy Complications, Infectious virology
Abstract: Objectives To evaluate the strength of association between maternal and pregnancy characteristics and the risk of adverse perinatal outcomes in pregnancies with laboratory confirmed COVID-19. Methods Secondary analysis of a multinational, cohort study on all consecutive pregnant women with laboratory-confirmed COVID-19 from February 1, 2020 to April 30, 2020 from 73 centers from 22 different countries. A confirmed case of COVID-19 was defined as a positive result on real-time reverse-transcriptase-polymerase-chain-reaction (RT-PCR) assay of nasal and pharyngeal swab specimens. The primary outcome was a composite adverse fetal outcome, defined as the presence of either abortion (pregnancy loss before 22 weeks of gestations), stillbirth (intrauterine fetal death after 22 weeks of gestation), neonatal death (death of a live-born infant within the first 28 days of life), and perinatal death (either stillbirth or neonatal death). Logistic regression analysis was performed to evaluate parameters independently associated with the primary outcome. Logistic regression was reported as odds ratio (OR) with 95% confidence interval (CI). Results Mean gestational age at diagnosis was 30.6±9.5 weeks, with 8.0% of women being diagnosed in the first, 22.2% in the second and 69.8% in the third trimester of pregnancy. There were six miscarriage (2.3%), six intrauterine device (IUD) (2.3) and 5 (2.0%) neonatal deaths, with an overall rate of perinatal death of 4.2% (11/265), thus resulting into 17 cases experiencing and 226 not experiencing composite adverse fetal outcome. Neither stillbirths nor neonatal deaths had congenital anomalies found at antenatal or postnatal evaluation. Furthermore, none of the cases experiencing IUD had signs of impending demise at arterial or venous Doppler. Neonatal deaths were all considered as prematurity-related adverse events. Of the 250 live-born neonates, one (0.4%) was found positive at RT-PCR pharyngeal swabs performed after delivery. The mother was tested positive during the third trimester of pregnancy. The newborn was asymptomatic and had negative RT-PCR test after 14 days of life. At logistic regression analysis, gestational age at diagnosis (OR: 0.85, 95% CI 0.8-0.9 per week increase; p<0.001), birthweight (OR: 1.17, 95% CI 1.09-1.12.7 per 100 g decrease; p=0.012) and maternal ventilatory support, including either need for oxygen or CPAP (OR: 4.12, 95% CI 2.3-7.9; p=0.001) were independently associated with composite adverse fetal outcome. Conclusions Early gestational age at infection, maternal ventilatory supports and low birthweight are the main determinants of adverse perinatal outcomes in fetuses with maternal COVID-19 infection. Conversely, the risk of vertical transmission seems negligible.
Published: 2020
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41. A Tutsi family harbouring two new RHCE variant alleles and a new haplotype in the Rh blood group system.

Author: Deleers M, Thonier V, Claes V, Daelemans C, Peyrard T, and El Kenz H
Subjects: Adult, Black People genetics, Erythrocytes immunology, Female, Humans, Pedigree, Pregnancy, Sequence Analysis, DNA, Alleles, Haplotypes, Rh-Hr Blood-Group System genetics
Abstract: Background: RHCE*ceEK is a rare RH allele mostly encountered in people of African descent. This allele is defined by four single nucleotide substitutions: c.48G>C, c.712A>G, c.787A>G and c.800T>A. Until now, it has only been reported to segregate with either RHD*01N.01 or RHD*DAR1.00., Materials and Methods: Blood samples were drawn from a 32-year-old Tutsi pregnant woman during an antenatal visit in order to perform her type and screen. To further investigate the results found in the patient, a family study was conducted. Standard haemagglutination methods were used to investigate the subjects' red blood cells and plasma. Molecular workup on RHD and RHCE genes was carried out by DNA microarray, real-time PCR and DNA sequencing techniques., Results: The patient was phenotyped as group B, D+C-E-c+e+, Hr-. A complex mixture of anti-E, anti-c, anti-Hr and anti-hr S was detected in her plasma. She was found to carry a normal RHD gene, a conventional RHCE*ceEK allele and an alternative RHCE*ceEK allele (RHCE*ceEK without c.48G>C). The family study showed that the conventional RHCE*ceEK and the alternative RHCE*ceEK alleles were associated with a RHD*01 allele and a RHD*01N.01 allele, respectively. Molecular analysis performed in the proband's mother showed a novel RHCE*ce variant allele on a RHCE*ce S -like background (RHCE*ce S with c.609G>A)., Conclusions: This case study brought out new associations between RHD and RHCE alleles encoding the rare Hr- phenotype: the conventional RHCE*ceEK allele linked to the RHD*01 allele and an alternative RHCE*ceEK allele associated with the RHD*01N.01 allele. A novel RHCE*ce variant (RHCE*ce S with c.609G>A) was also reported., (© 2020 International Society of Blood Transfusion.)
Published: 2020
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42. The "Cocoon," first alongside midwifery-led unit within a Belgian hospital: Comparison of the maternal and neonatal outcomes with the standard obstetric unit over 2 years.

Author: Welffens K, Derisbourg S, Costa E, Englert Y, Pintiaux A, Warnimont M, Kirkpatrick C, Buekens P, and Daelemans C
Subjects: Adolescent, Adult, Belgium epidemiology, Birthing Centers statistics & numerical data, Delivery, Obstetric methods, Female, Humans, Infant, Newborn, Logistic Models, Obstetric Labor Complications epidemiology, Parity, Pregnancy, Pregnancy Outcome, Retrospective Studies, Young Adult, Delivery, Obstetric adverse effects, Midwifery methods, Obstetric Labor Complications etiology, Perinatal Care methods
Abstract: Objectives: Our aim was to compare maternal and neonatal outcomes of women with a low-risk pregnancy attending the "Cocoon," an alongside midwifery-led birth center and care pathway, with women with a low-risk pregnancy attending the traditional care pathway in a tertiary care hospital in Belgium., Methods: We performed a retrospective cohort study of maternal and neonatal outcomes of women with a low-risk pregnancy who chose to adhere to the Cocoon pathway of care (n = 590) and women with a low-risk pregnancy who chose the traditional pathway of care (n = 394) from March 1, 2014, to February 29, 2016. We performed all analyses using an intention-to-treat approach., Results: In this setting, the cesarean birth rate was 10.3% compared with 16.0% in the traditional care pathway (adjusted odds ratios [aOR] 0.42 [95% CI 0.25-0.69]), the induction rate was 16.3% compared with 30.5% (0.46 [0.30-0.69]), the epidural analgesia rate was 24.9% compared with 59.1% (0.15 [0.09-0.22]), and the episiotomy rate was 6.8% compared with 14.5% (0.31 [0.17-0.56]). There was no increase in adverse neonatal outcomes. Intrapartum and postpartum transfer rates to the traditional pathway of care were 21.1% and 7.1%, respectively., Conclusions: Women planning their births in the midwifery-led unit, the Cocoon, experienced fewer interventions with no increase in adverse neonatal outcomes. Our study gives initial support for the introduction of similar midwifery-led care pathways in other hospitals in Belgium., (© 2019 The Authors. Birth published by Wiley Periodicals, Inc.)
Published: 2020
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43. Change in prevalence of gestational diabetes and obstetric complications when applying IADPSG screening criteria in a Belgian French speaking University Hospital. A retrospective cohort study.

Author: Costa E, Kirckpartick C, Gerday C, De Kempeneer A, Derisbourg S, Vercoutere A, Haumont S, Pintiaux A, and Daelemans C
Subjects: Adult, Female, Humans, Infant, Newborn, Pregnancy, Belgium epidemiology, Pregnancy Outcome epidemiology, Prenatal Care methods, Prenatal Care standards, Prevalence, Retrospective Studies, Diabetes, Gestational diagnosis, Diabetes, Gestational epidemiology, Diagnostic Screening Programs standards, Diagnostic Screening Programs statistics & numerical data, Infant, Newborn, Diseases classification, Infant, Newborn, Diseases epidemiology, Mass Screening methods, Mass Screening organization & administration, Obstetric Labor Complications classification, Obstetric Labor Complications epidemiology
Abstract: Background: In April 2012 our institution chose to switch from a two- step criteria for Gestational Diabetes Mellitus (GDM) screening, to the International Association of Diabetes in Pregnancy Study Group (IADSPG) criteria. This shift led to an increased prevalence of GDM in our pregnant population. We designed a study in order to estimate the magnitude of the increase in GDM prevalence before and after the switch in screening strategy. As a secondary objective we wanted to evaluate if there was a significant difference between the two periods in the percentage of maternal and neonatal complications such as gestational hypertensive disorders (GHD), primary cesarean section (pCS), preterm birth, large for gestational age (LGA) newborns, macrosomia, shoulder dystocia, 5' Apgar score less than to 7 at birth, neonatal intensive care unit (NICU) transfer and neonatal hypoglycemia., Methods: We selected retrospectively 3496 patients who delivered between January 2009 and December 2011 who were screened with the two-step criteria (group A), and compared them to 2555 patients who delivered between January 2013 and December 2014 and who were screened with IADPSG criteria (Group B). We checked patients' electronic files to establish GDM status, baseline characteristics (age, body mass index, nationality, parity) and the presence of maternal and neonatal complications., Results: GDM prevalence increased significantly from group A (3.4%; 95%CI 2.8-4.06%) to group B (16.28%; 95%CI 14.8 -17.7%). In group B there were significantly more non-Belgian and primiparous patients. There was no statistically significant difference in maternal and neonatal complications between the two groups, even after adjustment for nationality and parity. There was a non-significant reduction of the proportion of macrosomic and of LGA babies., Conclusions: In our population the introduction of IADPSG screening criteria has increased the prevalence of GDM without having a statistically significant impact on pregnancy outcomes.
Published: 2019
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44. [Home births].

Author: Welffens K, Kirkpatrick C, Daelemans C, and Derisbourg S
Subjects: Female, Humans, Pregnancy, Home Childbirth adverse effects, Home Childbirth statistics & numerical data
Abstract: In Belgium, very few women give birth outside the delivery room. In the United Kingdom and in the Netherlands, they are more numerous. Several studies evaluated obstetric and neonatal outcomes of home births compared with hospital births. We selected seven recent and large studies (with cohorts of more than 5.000 women) using PubMed, Science Direct and Cochrane Database of Systematic Reviews. Several questions were examined. Is there any difference in maternal and neonatal outcomes depending on the intended place of birth? Does parity affect outcomes ? What are the characteristics of women who choose to deliver at home ? We conclude that giving birth at home improves obstetric outcomes but is riskier for the baby, especially for the first one. The women delivering at home are mainly white Europeans, between 25 and 35 years old, in a relationship, multiparous and wealthier. In order to avoid this increased risk for the baby while preserving the obstetric advantages, alongside birth centers offer an intermediate solution. They combine the reassuring home-like atmosphere with the safety of the hospital. In Belgium, the first alongside birth center " Le Cocon " (a low technicity unit distinct from the delivery room) offers now this type of alternative place of birth for women in Hôpital Erasme in Brussels.
Published: 2016

45. [Prenatal screening: the example of Down's syndrome screening].

Author: Donner C, Daelemans C, and Ceysens G
Subjects: Biomarkers analysis, Biomarkers blood, Female, Humans, Maternal Age, Pregnancy, Down Syndrome diagnosis, Prenatal Diagnosis methods
Abstract: Prenatal screening for Down's syndrome initially targeted high-risk pregnant women (> 35 years old). However, the vast majority of babies with Down's syndrome are born to younger women (as the majority of babies are born in this age category). It was first discovered that some serum analytes were altered in pregnancies affected with Down's syndrome (triple test). In the nineties, the association between an increased nuchal translucency measurement and trisomy 21 was noted. The use of this measurement in combination with serum markers has enabled an increased detection rate but still at the cost of a false positive rate of around five percent (combined test). Recently, major advances in sequencing technologies have allowed reasearchers to make use of the cell free fetal DNA in maternal blood. This new test (named non invasive prenatal test) made it into clinical use as early as 2011 in some countries. Its sensitivity is above 99 % for trisomy 21 and the false positive rate is very low. It is risk-free and much more accurate than previous approaches. It is largely favored over an invasive test by high risk women (advanced maternal age or high-risk combined test). Its use is still restricted by a high cost which is for the moment still entirely beared by the patient. The availability of NIPT in our routine practice and the increased complexity of screening options have highlighted the need for a more dedicated counselling consultation before Down's syndrome screening is performed.
Published: 2015

46. Severe X-linked chondrodysplasia punctata in nine new female fetuses.

Author: Lefebvre M, Dufernez F, Bruel AL, Gonzales M, Aral B, Saint-Onge J, Gigot N, Desir J, Daelemans C, Jossic F, Schmitt S, Mangione R, Pelluard F, Vincent-Delorme C, Labaune JM, Bigi N, D'Olne D, Delezoide AL, Toutain A, Blesson S, Cormier-Daire V, Thevenon J, El Chehadeh S, Masurel-Paulet A, Joyé N, Vibert-Guigue C, Rigonnot L, Rousseau T, Vabres P, Hervé P, Lamazière A, Rivière JB, Faivre L, Laurent N, and Thauvin-Robinet C
Subjects: Chondrodysplasia Punctata genetics, Female, Genetic Markers, Genetic Testing, Humans, Infant, Newborn, Mutation, Pregnancy, Pregnancy Trimester, Second, Radiography, Retrospective Studies, Steroid Isomerases genetics, X Chromosome Inactivation, Chondrodysplasia Punctata diagnostic imaging, Phenotype, Severity of Illness Index, Ultrasonography, Prenatal
Abstract: Objectives: Conradi-Hünermann-Happle [X-linked dominant chondrodysplasia punctata 2 (CDPX2)] syndrome is a rare X-linked dominant skeletal dysplasia usually lethal in men while affected women show wide clinical heterogeneity. Different EBP mutations have been reported. Severe female cases have rarely been reported, with only six antenatal presentations., Methods: To better characterize the phenotype in female fetuses, we included nine antenatally diagnosed cases of women with EBP mutations. All cases were de novo except for two fetuses with an affected mother and one case of germinal mosaicism., Results: The mean age at diagnosis was 22 weeks of gestation. The ultrasound features mainly included bone abnormalities: shortening (8/9 cases) and bowing of the long bones (5/9), punctuate epiphysis (7/9) and an irregular aspect of the spine (5/9). Postnatal X-rays and examination showed ichthyosis (8/9) and epiphyseal stippling (9/9), with frequent asymmetric short and bowed long bones. The X-inactivation pattern of the familial case revealed skewed X-inactivation in the mildly symptomatic mother and random X-inactivation in the severe fetal case. Differently affected skin samples of the same fetus revealed different patterns of X-inactivation., Conclusion: Prenatal detection of asymmetric shortening and bowing of the long bones and cartilage stippling should raise the possibility of CPDX2 in female fetuses, especially because the majority of such cases involve de novo mutations., (© 2015 John Wiley & Sons, Ltd.)
Published: 2015
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47. Data analysis issues for allele-specific expression using Illumina's GoldenGate assay.

Author: Ritchie ME, Forrest MS, Dimas AS, Daelemans C, Dermitzakis ET, Deloukas P, and Tavaré S
Subjects: Databases, Genetic, Genome, Oligonucleotide Array Sequence Analysis, Polymorphism, Single Nucleotide, Alleles, Gene Expression, Genomics methods, Statistics as Topic methods
Abstract: Background: High-throughput measurement of allele-specific expression (ASE) is a relatively new and exciting application area for array-based technologies. In this paper, we explore several data sets which make use of Illumina's GoldenGate BeadArray technology to measure ASE. This platform exploits coding SNPs to obtain relative expression measurements for alleles at approximately 1500 positions in the genome., Results: We analyze data from a mixture experiment where genomic DNA samples from pairs of individuals of known genotypes are pooled to create allelic imbalances at varying levels for the majority of SNPs on the array. We observe that GoldenGate has less sensitivity at detecting subtle allelic imbalances (around 1.3 fold) compared to extreme imbalances, and note the benefit of applying local background correction to the data. Analysis of data from a dye-swap control experiment allowed us to quantify dye-bias, which can be reduced considerably by careful normalization. The need to filter the data before carrying out further downstream analysis to remove non-responding probes, which show either weak, or non-specific signal for each allele, was also demonstrated. Throughout this paper, we find that a linear model analysis of the data from each SNP is a flexible modelling strategy that allows for testing of allelic imbalances in each sample when replicate hybridizations are available., Conclusions: Our analysis shows that local background correction carried out by Illumina's software, together with quantile normalization of the red and green channels within each array, provides optimal performance in terms of false positive rates. In addition, we strongly encourage intensity-based filtering to remove SNPs which only measure non-specific signal. We anticipate that a similar analysis strategy will prove useful when quantifying ASE on Illumina's higher density Infinium BeadChips.
Published: 2010
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48. High-throughput analysis of candidate imprinted genes and allele-specific gene expression in the human term placenta.

Author: Daelemans C, Ritchie ME, Smits G, Abu-Amero S, Sudbery IM, Forrest MS, Campino S, Clark TG, Stanier P, Kwiatkowski D, Deloukas P, Dermitzakis ET, Tavaré S, Moore GE, and Dunham I
Subjects: DNA-Binding Proteins genetics, Female, Gene Expression, Humans, Microfilament Proteins genetics, Neoplasm Proteins genetics, Nerve Tissue Proteins genetics, Oligonucleotide Array Sequence Analysis, Polymorphism, Single Nucleotide, Pregnancy, Sensitivity and Specificity, Alleles, Computational Biology, Genomic Imprinting, Placenta metabolism
Abstract: Background: Imprinted genes show expression from one parental allele only and are important for development and behaviour. This extreme mode of allelic imbalance has been described for approximately 56 human genes. Imprinting status is often disrupted in cancer and dysmorphic syndromes. More subtle variation of gene expression, that is not parent-of-origin specific, termed 'allele-specific gene expression' (ASE) is more common and may give rise to milder phenotypic differences. Using two allele-specific high-throughput technologies alongside bioinformatics predictions, normal term human placenta was screened to find new imprinted genes and to ascertain the extent of ASE in this tissue., Results: Twenty-three family trios of placental cDNA, placental genomic DNA (gDNA) and gDNA from both parents were tested for 130 candidate genes with the Sequenom MassArray system. Six genes were found differentially expressed but none imprinted. The Illumina ASE BeadArray platform was then used to test 1536 SNPs in 932 genes. The array was enriched for the human orthologues of 124 mouse candidate genes from bioinformatics predictions and 10 human candidate imprinted genes from EST database mining. After quality control pruning, a total of 261 informative SNPs (214 genes) remained for analysis. Imprinting with maternal expression was demonstrated for the lymphocyte imprinted gene ZNF331 in human placenta. Two potential differentially methylated regions (DMRs) were found in the vicinity of ZNF331. None of the bioinformatically predicted candidates tested showed imprinting except for a skewed allelic expression in a parent-specific manner observed for PHACTR2, a neighbour of the imprinted PLAGL1 gene. ASE was detected for two or more individuals in 39 candidate genes (18%)., Conclusions: Both Sequenom and Illumina assays were sensitive enough to study imprinting and strong allelic bias. Previous bioinformatics approaches were not predictive of new imprinted genes in the human term placenta. ZNF331 is imprinted in human term placenta and might be a new ubiquitously imprinted gene, part of a primate-specific locus. Demonstration of partial imprinting of PHACTR2 calls for re-evaluation of the allelic pattern of expression for the PHACTR2-PLAGL1 locus. ASE was common in human term placenta.
Published: 2010
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49. Prediction of severity of symptoms in iatrogenic ovarian hyperstimulation syndrome by follicle-stimulating hormone receptor Ser680Asn polymorphism.

Author: Daelemans C, Smits G, de Maertelaer V, Costagliola S, Englert Y, Vassart G, and Delbaere A
Subjects: Adult, Alleles, Asparagine, Female, Fertilization in Vitro, Gene Frequency, Humans, Ovarian Hyperstimulation Syndrome genetics, Serine, Severity of Illness Index, White People genetics, Genetic Predisposition to Disease, Iatrogenic Disease, Ovarian Hyperstimulation Syndrome physiopathology, Polymorphism, Genetic, Receptors, FSH genetics
Abstract: The ovarian hyperstimulation syndrome (OHSS) is a potentially life-threatening complication of ovarian stimulation treatments for in vitro fertilization (i.v.f.). Recently, three different mutations of the FSH receptor (FSHr) have been identified in patients who presented recurrent spontaneous OHSS. This prompted us to study a possible association between coding polymorphisms of the FSHr and the occurrence of iatrogenic OHSS. We sequenced the region of the FSHr gene encompassing the A307T and S680N polymorphisms of exon 10 of FSHr in 37 Caucasian females who developed OHSS after an IVF cycle in our fertility clinic, 130 Caucasian female patients who were treated by i.v.f. but never developed OHSS, and 99 Caucasian female controls. The FSHr allele frequencies in the Caucasian control population were identical to what has already been published (39% S680 61% N680). The control i.v.f. population was enriched in the S680 allele compared with the Caucasian control population (51% S680; 49% N680; P = 0.016). The OHSS population had a even higher enrichment in the S680 allele compared with the Caucasian control population (57% S680; 43% N680; P = 0.010). These results were unexpected, because the frequency of the S680 allele was previously found to be increased among poor responders to FSH stimulation. In a second phase, we studied FSHr allele frequencies according to the severity of OHSS. Interestingly, a significant enrichment in the allele N680 was observed as the severity of OHSS increased (P = 0.034). Bearing in mind the limitations of the small number of patients studied and the possibility of sampling biases, these results suggest that the genotype in position 680 of the FSHr cannot predict which patients will develop OHSS, but could be a predictor of severity of symptoms among OHSS patients.
Published: 2004
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