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4. Evidence for distinct modes of solar activity

Author

Usoskin, I. G., Hulot, G., Gallet, Y., Roth, R., Licht, A., Joos, F., Kovaltsov, G. A., Thebault, E., and Khokhlov, A.

Subjects
Astrophysics - Solar and Stellar Astrophysics
Abstract

Aims. The Sun shows strong variability in its magnetic activity, from Grand minima to Grand maxima, but the nature of the variability is not fully understood, mostly because of the insufficient length of the directly observed solar activity records and of uncertainties related to long-term reconstructions. Here we present a new adjustment-free reconstruction of solar activity over three millennia and study its different modes. Methods. We present a new adjustment-free, physical reconstruction of solar activity over the past three millennia, using the latest verified carbon cycle, 14C production, and archeomagnetic field models. This great improvement allowed us to study different modes of solar activity at an unprecedented level of details. Results. The distribution of solar activity is clearly bi-modal, implying the existence of distinct modes of activity. The main regular activity mode corresponds to moderate activity that varies in a relatively narrow band between sunspot numbers about 20 and 67. The existence of a separate Grand minimum mode with reduced solar activity, which cannot be explained by random fluctuations of the regular mode, is confirmed at a high confidence level. The possible existence of a separate Grand maximum mode is also suggested, but the statistics is too low to reach a confident conclusion. Conclusions. The Sun is shown to operate in distinct modes - a main general mode, a Grand minimum mode corresponding to an inactive Sun, and a possible Grand maximum mode corresponding to an unusually active Sun. These results provide important constraints for both dynamo models of Sun-like stars and investigations of possible solar influence on Earth's climate., Comment: Astron. Astrophys. Letters (in press)

Published
2014
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5. Comprehensive geriatric assessment in older patients suffering from infective endocarditis. A prospective multicentric cohort study

Author

Schambach, S., Vallette, d’O., Khosravi, B.M., Patry, C., Roubaud, C., Lafargue, A., Guerville, F., Kobeh, D., Averty, E., Thiennaud, L., Soulas, E., Gavazzi, G., Basileu, T., Chuzeville, M., Laurain, M.-C., Paccalin, M., Novella, J.L., Bertholon, L.A., Jaidi, Y., Guiard, R., Sost, G., Naturel, J., Fraisse, T., Vitrat, V., Duval, X., Wirth, G., Forestier, E., Pavese, P., Pierre, I., Hoen, B., Fernandes, É., Curlier, E., Boibieux, A., Goehringer, F., Béraud, G., Nguyen, Y., Strady, C., Tattevin, P., Revest, M., Piau, C., Paz, P.C., Vançon, A.-C., Naem, N., Richard, B., Iung, B., Dijos, M., Fluttaz, A., Ennezat, P.-V., Delahaye, F., Selton-Suty, C., Beaufort, C., Nazeyrollas, P., Torossian, F., Brasselet, C., Donal, E., Pineau, O., Alla, F., Agrinier, N., Erpelding, M.-L., Sime, W.N., Clavère, G., Lebouc, M., Ilic-Habensus, E., Durrieu, J., Habet, T., Dupré, C., Chaissac, A.-M., Touati, S., Delahaye, A., Marquis, E., Warchol, M., Thébault, E., Jouan, C., Campagnac, C., Petitgenêt, I., Roubaud-Baudron, C., Carauz-Paz, P., and Moheb-Khosravi, B.

Published
2019
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7. Clinical characteristics and outcome of respiratory syncytial virus infection among adults hospitalized with influenza-like illness in France

Author

Seddik, K., Lesieur, Z., Bonmarin, I., Loulergue, P., Bodilis, H., Servera-Miyalou, M., Sadler, I., Momcilovic, S., Kanaan, R., Coolent, N., Tan Boun, K., Blanche, P., Charpentier, J., Daviaud, F., Mongardon, N., Bretagnol, A., Claessens, Y.E., Rozenberg, F., Yazdanpanah, Y., Burdet, C., Harent, S., Lachatre, M., Rioux, C., Bleibtreu, A., Casalino, E., Choquet, C., Leleu, A., Belghalem, K., Colosi, L., Ranaivoson, M., Verry, V., Pereira, L., Dupeyrat, E., Bernard, J., Emeyrat, N., Chavance, P., Debit, A., Aubier, M., Pradere, P., Justet, A., Mal, H., Brugiere, O., Papo, T., Goulenok, T., Boisseau, M., Jouenne, R., Alexandra, J.F., Raynaud-Simon, A., Lilamand, M., Cloppet-Fontaine, A., Becheur, K., Pelletier, A.L., Fidouh, N., Ralaimazava, P., Beaumale, F., Costa, Y., Munier, E., Betend, F., Amour, S., Loeffert, S., Francourt, K., Merle, C., Letois, F., Géraud, P., Driss, V., Noslier, S., Ray, M., Sebbane, M., Konaté, A., Bourdin, A., Klouche, K., Léglise, M.S., Couve-Deacon, E., Fruit, D., Fenerol, C., Vallejo, C., Jouneau, S., Lainé, F., Thébault, E., Fillatre, P., Le Pape, C., Beuzit, L., Chau, F., Carrat, F., Goderel, I., Loubet, P., Lenzi, N., Valette, M., Foulongne, V., Krivine, A., Houhou, N., Lagathu, G., Rogez, S., Alain, S., Duval, X., Galtier, F., Postil, D., Tattevin, P., Vanhems, P., Lina, B., and Launay, O.

Published
2017
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9. Global characteristics and outcomes of SARS-CoV-2 infection in children and adolescents with cancer (GRCCC): a cohort study

Author

Mukkada, S, Bhakta, N, Chantada, G, Chen, Y, Vedaraju, Y, Faughnan, L, Homsi, M, Muniz-Talavera, H, Ranadive, R, Metzger, M, Friedrich, P, Agulnik, A, Jeha, S, Lam, C, Dalvi, R, Hessissen, L, Moreira, D, Santana, V, Sullivan, M, Bouffet, E, Caniza, M, Devidas, M, Pritchard-Jones, K, Rodriguez-Galindo, C, Ribelles, A, Balduzzi, A, Elhaddad, A, Casanovas, A, Garcia Velazquez, A, Laptsevich, A, Chang, A, F. Sampaio A., L, Gonzalez Prieto, A, Lassaletta, A, Suarez M, A, Alcasabas, A, Colita, A, Morales La Madrid, A, Samudio, A, Tondo, A, Colombini, A, Kattamis, A, Lopez Facundo, N, Bhattacharyya, A, Alimi, A, Phulpin, A, Vakrmanova, B, Aksoy, B, Brethon, B, Kobuin, J, Nolasco Monteiro, C, Paillard, C, Vezina, C, Ceyhun, B, Hentea, C, Meazza, C, Ortiz-Morales, D, Solorzano, R, Arce Cabrera, D, Zama, D, Ghosh, D, Ramirez-Rivera, D, Calle Jara, D, Janic, D, Rey Helo, E, Gouache, E, Guerrero Quiroz, E, Lopez, E, Thebault, E, Maradiegue, E, de Berranger, E, Ebeid, F, Galaverna, F, Antillon-Klussmann, F, Espinoza Chacur, F, Negro, F, Carraro, F, Compagno, F, Barriga, F, Tamayo Pedraza, G, Sanchez Fernandez, G, Naidu, G, Tokuc, G, Alias, H, B Segocio, H, Boudiaf, H, Asetre Luna, I, Maia, I, Astigarraga, I, Maza, I, Montoya Vasquez, J, Jazbec, J, Lazic, J, Beck Dean, J, Rouger-Gaudichon, J, Contreras Gonzalez, J, Huerta Aragones, J, Fuster, J, Quintana, J, Palma, J, Svojgr, K, Quintero, K, Malic Tudor, K, Georgantzi, K, P Schultz, K, Urena Horno, L, Fraquelli, L, Meneghello, L, Shalaby, L, Macias Mora, L, A Renner, L, Nunes Silva, L, Sisinni, L, Hammad, M, Fernandez Sanmartin, M, Zubieta A, C, Drozdowski, M, Kourti, M, Palladino, M, Miranda Madrazo, M, Poiree, M, Popova, M, Melgar, M, Baragano, M, Aviles-Robles, M, Provenzi, M, Mendes Lins, M, Fatih Orhan, M, Villarroel, M, Jeronimo, M, Varas Palma, M, Rafie Raza, M, M Justin, M, Shaheen, N, Dominguez-Pinilla, N, Whipple, N, Andre, N, Hrusak, O, Velasco Puyo, P, Zacasa Vargas, P, Olate Mellado, P, Yola Gassant, P, Diaz Romero, P, De Santis, R, Kebudi, R, Boranbayeva, R, Vasquez, R, Segura, R, Rosado, R, Gomez, S, Raimbault, S, Gunasekera, S, Makkeyah, S, Buyukkapu Bay, S, M Gomez, S, Bouttefroy, S, Islam, S, Abouelnaga, S, Torres, S, Cesaro, S, Nunes, S, Rouxinol, S, Bhaumik, S, Saliyeva, S, Inostroza, T, Velasquez, T, Hnin, T, Noren-Nystrom, U, Baretta, V, Jimenez-Antolinez, Y, Perez Alonso, V, Ayer Miller, V, Gandemer, V, Lotero, V, Mishkova, V, Gomez-Garcia, W, Margaryan, Y, Syed, Y, Mukkada S., Bhakta N., Chantada G. L., Chen Y., Vedaraju Y., Faughnan L., Homsi M. R., Muniz-Talavera H., Ranadive R., Metzger M., Friedrich P., Agulnik A., Jeha S., Lam C., Dalvi R., Hessissen L., Moreira D. C., Santana V. M., Sullivan M., Bouffet E., Caniza M. A., Devidas M., Pritchard-Jones K., Rodriguez-Galindo C., Ribelles A. J., Balduzzi A., Elhaddad A., Casanovas A., Garcia Velazquez A., Laptsevich A., Chang A., F. Sampaio A. L., Gonzalez Prieto A., Lassaletta A., Suarez M A., Alcasabas A. P., Colita A., Morales La Madrid A., Samudio A., Tondo A., Colombini A., Kattamis A., Lopez Facundo N. A., Bhattacharyya A., Alimi A., Phulpin A., Vakrmanova B., Aksoy B. A., Brethon B., Kobuin J. B., Nolasco Monteiro C., Paillard C., Vezina C., Ceyhun B., Hentea C., Meazza C., Ortiz-Morales D., Solorzano R. D., Arce Cabrera D., Zama D., Ghosh D., Ramirez-Rivera D., Calle Jara D. A., Janic D., Rey Helo E., Gouache E., Guerrero Quiroz E., Lopez E., Thebault E., Maradiegue E., de Berranger E., Ebeid F. S. E., Galaverna F., Antillon-Klussmann F., Espinoza Chacur F., Negro F. D., Carraro F., Compagno F., Barriga F., Tamayo Pedraza G., Sanchez Fernandez G., Naidu G., Tokuc G., Alias H., B Segocio H. G., Boudiaf H., Asetre Luna I., Maia I., Astigarraga I., Maza I., Montoya Vasquez J. E., Jazbec J., Lazic J., Beck Dean J., Rouger-Gaudichon J., Contreras Gonzalez J. C., Huerta Aragones J., Fuster J. L., Quintana J., Palma J., Svojgr K., Quintero K., Malic Tudor K., Georgantzi K., P Schultz K. A., Urena Horno L., Fraquelli L., Meneghello L., Shalaby L., Macias Mora L. L., A Renner L., Nunes Silva L., Sisinni L., Hammad M., Fernandez Sanmartin M., Zubieta A C. M., Drozdowski M. C., Kourti M., Palladino M. M., Miranda Madrazo M. R., Poiree M., Popova M., Melgar M., Baragano M., Aviles-Robles M. J., Provenzi M., Mendes Lins M., Fatih Orhan M., Villarroel M., Jeronimo M., Varas Palma M., Rafie Raza M., M Justin M., Shaheen N., Dominguez-Pinilla N., Whipple N. S., Andre N., Hrusak O., Velasco Puyo P., Zacasa Vargas P., Olate Mellado P., Yola Gassant P., Diaz Romero P., De Santis R., Kebudi R., Boranbayeva R., Vasquez R., Segura R. A., Rosado R. E., Gomez S., Raimbault S., Gunasekera S., Makkeyah S. M., Buyukkapu Bay S., M Gomez S., Bouttefroy S., Islam S., Abouelnaga S., Torres S. F., Cesaro S., Nunes S., Rouxinol S., Bhaumik S., Saliyeva S., Inostroza T., Velasquez T., Hnin T. M., Noren-Nystrom U., Baretta V., Jimenez-Antolinez Y. V., Perez Alonso V., Ayer Miller V., Gandemer V., Lotero V., Mishkova V., Gomez-Garcia W., Margaryan Y., Syed Y., Mukkada, S, Bhakta, N, Chantada, G, Chen, Y, Vedaraju, Y, Faughnan, L, Homsi, M, Muniz-Talavera, H, Ranadive, R, Metzger, M, Friedrich, P, Agulnik, A, Jeha, S, Lam, C, Dalvi, R, Hessissen, L, Moreira, D, Santana, V, Sullivan, M, Bouffet, E, Caniza, M, Devidas, M, Pritchard-Jones, K, Rodriguez-Galindo, C, Ribelles, A, Balduzzi, A, Elhaddad, A, Casanovas, A, Garcia Velazquez, A, Laptsevich, A, Chang, A, F. Sampaio A., L, Gonzalez Prieto, A, Lassaletta, A, Suarez M, A, Alcasabas, A, Colita, A, Morales La Madrid, A, Samudio, A, Tondo, A, Colombini, A, Kattamis, A, Lopez Facundo, N, Bhattacharyya, A, Alimi, A, Phulpin, A, Vakrmanova, B, Aksoy, B, Brethon, B, Kobuin, J, Nolasco Monteiro, C, Paillard, C, Vezina, C, Ceyhun, B, Hentea, C, Meazza, C, Ortiz-Morales, D, Solorzano, R, Arce Cabrera, D, Zama, D, Ghosh, D, Ramirez-Rivera, D, Calle Jara, D, Janic, D, Rey Helo, E, Gouache, E, Guerrero Quiroz, E, Lopez, E, Thebault, E, Maradiegue, E, de Berranger, E, Ebeid, F, Galaverna, F, Antillon-Klussmann, F, Espinoza Chacur, F, Negro, F, Carraro, F, Compagno, F, Barriga, F, Tamayo Pedraza, G, Sanchez Fernandez, G, Naidu, G, Tokuc, G, Alias, H, B Segocio, H, Boudiaf, H, Asetre Luna, I, Maia, I, Astigarraga, I, Maza, I, Montoya Vasquez, J, Jazbec, J, Lazic, J, Beck Dean, J, Rouger-Gaudichon, J, Contreras Gonzalez, J, Huerta Aragones, J, Fuster, J, Quintana, J, Palma, J, Svojgr, K, Quintero, K, Malic Tudor, K, Georgantzi, K, P Schultz, K, Urena Horno, L, Fraquelli, L, Meneghello, L, Shalaby, L, Macias Mora, L, A Renner, L, Nunes Silva, L, Sisinni, L, Hammad, M, Fernandez Sanmartin, M, Zubieta A, C, Drozdowski, M, Kourti, M, Palladino, M, Miranda Madrazo, M, Poiree, M, Popova, M, Melgar, M, Baragano, M, Aviles-Robles, M, Provenzi, M, Mendes Lins, M, Fatih Orhan, M, Villarroel, M, Jeronimo, M, Varas Palma, M, Rafie Raza, M, M Justin, M, Shaheen, N, Dominguez-Pinilla, N, Whipple, N, Andre, N, Hrusak, O, Velasco Puyo, P, Zacasa Vargas, P, Olate Mellado, P, Yola Gassant, P, Diaz Romero, P, De Santis, R, Kebudi, R, Boranbayeva, R, Vasquez, R, Segura, R, Rosado, R, Gomez, S, Raimbault, S, Gunasekera, S, Makkeyah, S, Buyukkapu Bay, S, M Gomez, S, Bouttefroy, S, Islam, S, Abouelnaga, S, Torres, S, Cesaro, S, Nunes, S, Rouxinol, S, Bhaumik, S, Saliyeva, S, Inostroza, T, Velasquez, T, Hnin, T, Noren-Nystrom, U, Baretta, V, Jimenez-Antolinez, Y, Perez Alonso, V, Ayer Miller, V, Gandemer, V, Lotero, V, Mishkova, V, Gomez-Garcia, W, Margaryan, Y, Syed, Y, Mukkada S., Bhakta N., Chantada G. L., Chen Y., Vedaraju Y., Faughnan L., Homsi M. R., Muniz-Talavera H., Ranadive R., Metzger M., Friedrich P., Agulnik A., Jeha S., Lam C., Dalvi R., Hessissen L., Moreira D. C., Santana V. M., Sullivan M., Bouffet E., Caniza M. A., Devidas M., Pritchard-Jones K., Rodriguez-Galindo C., Ribelles A. J., Balduzzi A., Elhaddad A., Casanovas A., Garcia Velazquez A., Laptsevich A., Chang A., F. Sampaio A. L., Gonzalez Prieto A., Lassaletta A., Suarez M A., Alcasabas A. P., Colita A., Morales La Madrid A., Samudio A., Tondo A., Colombini A., Kattamis A., Lopez Facundo N. A., Bhattacharyya A., Alimi A., Phulpin A., Vakrmanova B., Aksoy B. A., Brethon B., Kobuin J. B., Nolasco Monteiro C., Paillard C., Vezina C., Ceyhun B., Hentea C., Meazza C., Ortiz-Morales D., Solorzano R. D., Arce Cabrera D., Zama D., Ghosh D., Ramirez-Rivera D., Calle Jara D. A., Janic D., Rey Helo E., Gouache E., Guerrero Quiroz E., Lopez E., Thebault E., Maradiegue E., de Berranger E., Ebeid F. S. E., Galaverna F., Antillon-Klussmann F., Espinoza Chacur F., Negro F. D., Carraro F., Compagno F., Barriga F., Tamayo Pedraza G., Sanchez Fernandez G., Naidu G., Tokuc G., Alias H., B Segocio H. G., Boudiaf H., Asetre Luna I., Maia I., Astigarraga I., Maza I., Montoya Vasquez J. E., Jazbec J., Lazic J., Beck Dean J., Rouger-Gaudichon J., Contreras Gonzalez J. C., Huerta Aragones J., Fuster J. L., Quintana J., Palma J., Svojgr K., Quintero K., Malic Tudor K., Georgantzi K., P Schultz K. A., Urena Horno L., Fraquelli L., Meneghello L., Shalaby L., Macias Mora L. L., A Renner L., Nunes Silva L., Sisinni L., Hammad M., Fernandez Sanmartin M., Zubieta A C. M., Drozdowski M. C., Kourti M., Palladino M. M., Miranda Madrazo M. R., Poiree M., Popova M., Melgar M., Baragano M., Aviles-Robles M. J., Provenzi M., Mendes Lins M., Fatih Orhan M., Villarroel M., Jeronimo M., Varas Palma M., Rafie Raza M., M Justin M., Shaheen N., Dominguez-Pinilla N., Whipple N. S., Andre N., Hrusak O., Velasco Puyo P., Zacasa Vargas P., Olate Mellado P., Yola Gassant P., Diaz Romero P., De Santis R., Kebudi R., Boranbayeva R., Vasquez R., Segura R. A., Rosado R. E., Gomez S., Raimbault S., Gunasekera S., Makkeyah S. M., Buyukkapu Bay S., M Gomez S., Bouttefroy S., Islam S., Abouelnaga S., Torres S. F., Cesaro S., Nunes S., Rouxinol S., Bhaumik S., Saliyeva S., Inostroza T., Velasquez T., Hnin T. M., Noren-Nystrom U., Baretta V., Jimenez-Antolinez Y. V., Perez Alonso V., Ayer Miller V., Gandemer V., Lotero V., Mishkova V., Gomez-Garcia W., Margaryan Y., and Syed Y.

Abstract

Background: Previous studies have shown that children and adolescents with COVID-19 generally have mild disease. Children and adolescents with cancer, however, can have severe disease when infected with respiratory viruses. In this study, we aimed to understand the clinical course and outcomes of SARS-CoV-2 infection in children and adolescents with cancer. Methods: We did a cohort study with data from 131 institutions in 45 countries. We created the Global Registry of COVID-19 in Childhood Cancer to capture de-identified data pertaining to laboratory-confirmed SARS-CoV-2 infections in children and adolescents (<19 years) with cancer or having received a haematopoietic stem-cell transplantation. There were no centre-specific exclusion criteria. The registry was disseminated through professional networks through email and conferences and health-care providers were invited to submit all qualifying cases. Data for demographics, oncological diagnosis, clinical course, and cancer therapy details were collected. Primary outcomes were disease severity and modification to cancer-directed therapy. The registry remains open to data collection. Findings: Of 1520 submitted episodes, 1500 patients were included in the study between April 15, 2020, and Feb 1, 2021. 1319 patients had complete 30-day follow-up. 259 (19·9%) of 1301 patients had a severe or critical infection, and 50 (3·8%) of 1319 died with the cause attributed to COVID-19 infection. Modifications to cancer-directed therapy occurred in 609 (55·8%) of 1092 patients receiving active oncological treatment. Multivariable analysis revealed several factors associated with severe or critical illness, including World Bank low-income or lower-middle-income (odds ratio [OR] 5·8 [95% CI 3·8–8·8]; p<0·0001) and upper-middle-income (1·6 [1·2–2·2]; p=0·0024) country status; age 15–18 years (1·6 [1·1–2·2]; p=0·013); absolute lymphocyte count of 300 or less cells per mm3 (2·5 [1·8–3·4]; p<0·0001), absolute neutrophil count

Published
2021

11. Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field

Author

Alken, P., Thebault, E., Beggan, C.D., Aubert, J, Baerenzung, J, Brown, W.J., Califf, S, Chulliat, A, Cox, G.A., Finlay, C C, Fournier, A, Gillet, N, Hammer, M, Holschneider, M, Hulot, G, Korte, M, Lesur, V, Livermore, P W, Lowes, F J, Macmillan, S., Nair, M, Olsen, N, Ropp, G, Rother, M, Schnepf, N R, Stolle, C, Toh, H, Vervelidou, F, Vigneron, P, Wardinski, I, Alken, P., Thebault, E., Beggan, C.D., Aubert, J, Baerenzung, J, Brown, W.J., Califf, S, Chulliat, A, Cox, G.A., Finlay, C C, Fournier, A, Gillet, N, Hammer, M, Holschneider, M, Hulot, G, Korte, M, Lesur, V, Livermore, P W, Lowes, F J, Macmillan, S., Nair, M, Olsen, N, Ropp, G, Rother, M, Schnepf, N R, Stolle, C, Toh, H, Vervelidou, F, Vigneron, P, and Wardinski, I

Abstract

In December 2019, the 13th revision of the International Geomagnetic Reference Field (IGRF) was released by the International Association of Geomagnetism and Aeronomy (IAGA) Division V Working Group V-MOD. This revision comprises two new spherical harmonic main field models for epochs 2015.0 (DGRF-2015) and 2020.0 (IGRF-2020) and a model of the predicted secular variation for the interval 2020.0 to 2025.0 (SV-2020-2025). The models were produced from candidates submitted by fifteen international teams. These teams were led by the British Geological Survey (UK), China Earthquake Administration (China), Universidad Complutense de Madrid (Spain), University of Colorado Boulder (USA), Technical University of Denmark (Denmark), GFZ German Research Centre for Geosciences (Germany), Institut de physique du globe de Paris (France), Institut des Sciences de la Terre (France), Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation (Russia), Kyoto University (Japan), University of Leeds (UK), Max Planck Institute for Solar System Research (Germany), NASA Goddard Space Flight Center (USA), University of Potsdam (Germany), and Université de Strasbourg (France). The candidate models were evaluated individually and compared to all other candidates as well to the mean, median and a robust Huber-weighted model of all candidates. These analyses were used to identify, for example, the variation between the Gauss coefficients or the geographical regions where the candidate models strongly differed. The majority of candidates were sufficiently close that the differences can be explained primarily by individual modeling methodologies and data selection strategies. None of the candidates were so different as to warrant their exclusion from the final IGRF-13. The IAGA V-MOD task force thus voted for two approaches: the median of the Gauss coefficients of the candidates for the DGRF-2015 and IGRF-2020 models and the robust Huber-weighted model for the predictive S

Published
2021

13. Moderate influenza vaccine effectiveness against hospitalisation with A(H3N2) and A(H1N1) influenza in 2013–14: Results from the InNHOVE network

Author

Rondy, M., Castilla, J., Launay, O., Costanzo, S., Ezpeleta, C., Galtier, F., de Gaetano Donati, K., Moren, A., Beristain, X., Chamorro, J., Gabari, M., Artajo, P., Lameiro, F., Barrado, L., Ortega, M., Torres, M., Garcia Irure, J. J., Irisarri, F., Garcia Cenoz, M., Guevara, M., Casado, I., Diaz, J., Martinez-Baz, I., Lenzi, N., Lesieur, Z., Bonmarin, I., Merle, C., Foulongne, V., Letois, F., Driss, V., Geraud, P., Bourdin, A., Landreau, L., Konate, A., Corne, P., Sebbane, M., Klouche, K., Leglise, M. -S., Loulergue, P., Kanaan, R., Dumas, F., Krivine, A., Moncilovic, S., Ali, N., Duval, X., Costa, Y., Ait Naman, R., Yazdapanah, Y., Caseris, M., Dournon, N., Papo, T., Dossier, A., Becheur, H., Pelletier, A. -L., Mal, M., Marceau, A., Aubier, M., Bories, R., Casalino, E., Choquet, C., Houhou, N., Vanhems, P., Regis, C., Jouneau, S., Laine, F., Tattevin, P., Beuzit, L., Thebault, E., Fey, S., Lagathu et Sophie Cha, G., Postil, D., Alcolea, S., Rogez, S., Valette, M., Lina, B., Cauda, R., Taccari, F., Santangelo, R., Perlasca, F., Fichera, G., Dara, M., Iacoviello, L., Olivieri, M., CIC - Biotherapie - AP-HP (cochin - Pasteur), Institut National de la Santé et de la Recherche Médicale (INSERM), CHU Saint-Eloi, CIC Montpellier, Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-CHU Saint-Eloi-Institut National de la Santé et de la Recherche Médicale (INSERM), Biocommunication en Cardio-Métabolique (BC2M), Université de Montpellier (UM), Hôpital Saint Eloi (CHRU Montpellier), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Hôpital Saint Eloi (CHRU Montpellier), and Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier)-Institut National de la Santé et de la Recherche Médicale (INSERM)

Subjects
Male, [SDV]Life Sciences [q-bio], Logistic regression, medicine.disease_cause, Influenza A Virus, H1N1 Subtype, 0302 clinical medicine, Outcome Assessment, Health Care, Influenza A virus, Immunology and Allergy, Medicine, 030212 general & internal medicine, hospital, Young adult, media_common, Aged, 80 and over, Influenza vaccine, Vaccination, virus diseases, Middle Aged, Research Papers, 3. Good health, Hospitalization, case control studies, Italy, Influenza Vaccines, Female, France, Seasons, Adult, medicine.medical_specialty, Adolescent, 030231 tropical medicine, Immunology, Young Adult, 03 medical and health sciences, Internal medicine, Influenza, Human, A h1n1 influenza, Humans, media_common.cataloged_instance, European Union, European union, Intensive care medicine, Aged, Pharmacology, business.industry, Influenza A Virus, H3N2 Subtype, Case-control study, Influenza, multicentre studies, Logistic Models, Spain, Case-Control Studies, business, Sentinel Surveillance
Abstract

International audience; We conducted a multicentre test negative case control study to estimate the 2013–14 influenza vaccine effectiveness (IVE) against hospitalised laboratory confirmed influenza in 12 hospitals in France, Italy and Spain. We included all ≥18 years hospitalised patients targeted by local influenza vaccination campaign reporting an influenza-like illness within 7 days before admission. We defined as cases patients RT-PCR positive for influenza and as controls those negative for all influenza virus. We used a logistic regression to calculate IVE adjusted for country, month of onset, chronic diseases and age. We included 104 A(H1N1)pdm09, 157 A(H3N2) cases and 585 controls. The adjusted IVE was 42.8% (95%CI: 6.3;65;0) against A(H1N1)pdm09. It was respectively 61.4% (95%CI: −1.9;85.4), 39.4% (95%CI: −32.2;72.2) and 19.7% (95%CI:-148.1;74.0) among patients aged 18–64, 65–79 and ≥80 years. The adjusted IVE against A(H3N2) was 38.1% (95%CI: 8.3;58.2) overall. It was respectively 7.8% (95%CI: −145.3;65.4), 25.6% (95%CI: −36.0;59.2) and 55.2% (95%CI: 15.4;76.3) among patients aged 18–64, 65–79 and ≥80 years. These results suggest a moderate and age varying effectiveness of the 2013–14 influenza vaccine to prevent hospitalised laboratory-confirmed influenza. While vaccination remains the most effective prevention measure, developing more immunogenic influenza vaccines is needed to prevent severe outcomes among target groups. © 2016 Taylor & Francis.

Published
2016
Full Text
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19. Species richness can decrease with altitude but not with habitat diversity

Author

Hortal, J., Carrascal, L. M., Triantis, Kostas A., Theb́ault, E., Meiri, S., Sfenthourakis, Spyros, and Sfenthourakis, Spyros [0000-0003-3213-2502]

Subjects
bird, Range (biology), letter, Biodiversity, habitat, Shrubland, genetic heterogeneity, Diversity index, Altitude, vegetation, geography, nonhuman, Multidisciplinary, geography.geographical_feature_category, Ecology, species diversity, Vegetation, priority journal, Habitat, scrub, Species richness, grassland, environment, altitude
Abstract

In the paper by Allouche et al. (1), the authors suggested that species richness decreases at high levels of habitat diversity because the area available per habitat decreases [area–heterogeneity tradeoff hypothesis (AHTO)]. They showed a hump-shaped relationship between Catalonian bird richness and altitudinal range in grid cells, the authors’ surrogate for environmental heterogeneity. However, birds select habitats mainly based on vegetation structure and floristic composition (2). Catalonian high altitudes are dominated by uniform coniferous forests or simple habitats with low vegetation cover (outcrops, grasslands, and scrublands) that are known to be poor in bird richness. Furthermore, high-altitude grid cells have the largest altitudinal ranges but much fewer habitats than lower altitudes (using 48 habitat categories obtained from Inventario Nacional Forestal III, 2007–2008, Spanish Ministerio de Medio Ambiente). Elevation range in Catalonia is tightly correlated with maximum altitude (r = 0.951; P < 0.0001) and mean elevation (r = 0.858; P < 0.0001), but poorly correlated with environmental heterogeneity (number of habitats per cell: r = 0.049, P = 0.349; Shannon index across all habitat categories: r = 0.119, P = 0.024). When analyzed together (Generalized Additive Model; Fig. 1), bird-species richness shows a hump-shaped relationship with mean elevation [nonlinear P (n-Lp) = 0.003], a negative linear relationship with altitudinal range (P = 0.001; n-Lp = 0.426), and a positive, monotonic relationship with habitat diversity (P < 0.001; n-Lp = 0.336), as predicted from ecological theory (3). Thus, the unimodal relationship between altitudinal range and richness (1) merely reflects the well-known hump-shaped relationship between species richness and altitude (4), not a tradeoff between richness and environmental heterogeneity.

Published
2013
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24. International Geomagnetic Reference Field: The Eleventh Generation

Author

Finlay, Christopher Charles, Maus, S., Beggan, C.D., Bondar, T.N., Chambodut, A., Chulliat, A., Golovkov, V.P., Hamilton, B., Hamoudi, M., Holme, R., Hulot, G., Kuang, W., Langlais, B., Lesur, V., Lowes, F.J., Luehr, H., Macmillan, S., Mandea, M., McLean, S., Manoj C., Menvielle, M., Michaelis, I., Olsen, N., Rauberg, J., Rother, M., Sabaka, T.J., Tangborn, A., Toffner-Clausen, L., Thebault, E., Thomson, A.W.P., Wardinski, I., Wei, Z., and Zvereva, T.I.

Subjects
Magnetic field, Satellite magnetics
Abstract

Geophysical Journal International, 183 (3), ISSN:0956-540X, ISSN:1365-246X

Published
2010
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25. EMAG2: A 2-arc min resolution Earth Magnetic Anomaly Grid compiled from satellite, airborne, and marine magnetic measurements

Author

Maus, S., Barckhausen, U., Berkenbosch, H., Bournas, N., Brozena, J., Childers, V., Dostaler, F., Fairhead, J. D., Finn, C., Von Frese, R. R. B., Gaina, C., Golynsky, S., Kucks, R., Luhr, H., Milligan, P., Mogren, S., Muller, R. D., Olesen, O., Pilkington, M., Saltus, R., Schreckenberger, B., Thebault, E., and Caratori Tontini, F.

Subjects
Magnetic anomaly, Magnetic grid, Magnetic model
Published
2009

26. Magnetic field anomalies above large martian impact structures

Author

Langlais, B., Ostanciaux, E., Thebault, E., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU]Sciences of the Universe [physics]/Earth Sciences, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2008

27. Large impact demagnetization on Mars

Author

Langlais, B., Thebault, E., Quesnel, Y., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2007

28. Magnetic signature of demagnetized impact craters: Tools to time the shutdown of the dynamo on Mars

Author

Langlais, B., Thebault, E., Quesnel, Y., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, ComputingMethodologies_GENERAL
Abstract

Poster

Published
2007

29. Timing of the dynamo through impact demagnetization on Mars: what can be done?

Author

Langlais, B., Thebault, E., Quesnel, Y., Sotin, C., Laboratoire de Planétologie et Géodynamique [UMR 6112] (LPG), Université d'Angers (UA)-Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST), and Université de Nantes (UN)-Université de Nantes (UN)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[SDU.STU.PL]Sciences of the Universe [physics]/Earth Sciences/Planetology, ComputingMethodologies_GENERAL
Abstract

Poster

Published
2006

30. Integrating ecosystem engineering and food webs

Author

Sanders, D., Jones, C.G., Thebault, E., Bouma, T.J., Heide, T. van der, Belzen, J. van, Barot, S., Sanders, D., Jones, C.G., Thebault, E., Bouma, T.J., Heide, T. van der, Belzen, J. van, and Barot, S.

Abstract

Contains fulltext : 128087.pdf (publisher's version ) (Closed access)

Published
2014

31. Soil and Freshwater and Marine Sediment Food Webs: Their Structure and Function

Author

Krumins, J.A., Van Oevelen, D., Bezemer, T.M., De Deyn, G.B., Hol, W.H.G., Van Donk, E., De Boer, W., De Ruiter, P.C., Middelburg, J.J., Monroy, F., Soetaert, K.E.R., Thebault, E., Van de Koppel, J., Van Veen, J.A., Viketoft, M., Van der Putten, W.H., Krumins, J.A., Van Oevelen, D., Bezemer, T.M., De Deyn, G.B., Hol, W.H.G., Van Donk, E., De Boer, W., De Ruiter, P.C., Middelburg, J.J., Monroy, F., Soetaert, K.E.R., Thebault, E., Van de Koppel, J., Van Veen, J.A., Viketoft, M., and Van der Putten, W.H.

Abstract

The food webs of terrestrial soils and of freshwater and marine sediments depend on adjacent aboveground or pelagic ecosystems for organic matter input that provides nutrients and energy. There are important similarities in the flow of organic matter through these food webs and how this flow feeds back to primary production. In both soils and sediments, trophic interactions occur in a cycle in which consumers stimulate nutrient cycling such that mineralized resources are made available to the primary producers. However, aquatic sediments and terrestrial soils differ greatly in the connectivity between the production and the consumption of organic matter. Terrestrial soils and shallow aquatic sediments can receive organic matter within hours of photosynthesis when roots leak carbon, whereas deep oceanic sediments receive organic matter possibly months after carbon assimilation by phytoplankton. This comparison has implications for the capacity of soils and sediments to affect the global carbon balance., The food webs of terrestrial soils and of freshwater and marine sediments depend on adjacent aboveground or pelagic ecosystems for organic matter input that provides nutrients and energy. There are important similarities in the flow of organic matter through these food webs and how this flow feeds back to primary production. In both soils and sediments, trophic interactions occur in a cycle in which consumers stimulate nutrient cycling such that mineralized resources are made available to the primary producers. However, aquatic sediments and terrestrial soils differ greatly in the connectivity between the production and the consumption of organic matter. Terrestrial soils and shallow aquatic sediments can receive organic matter within hours of photosynthesis when roots leak carbon, whereas deep oceanic sediments receive organic matter possibly months after carbon assimilation by phytoplankton. This comparison has implications for the capacity of soils and sediments to affect the global carbon balance.

Published
2013

32. The Swarm Satellite Constellation Application and Research Facility (SCARF) and Swarm data products

Author

Olsen, Nils, Friis-Christensen, Eigil, Floberghagen, R., Alken, P., Beggan, C. D., Chulliat, A., Doornbos, E., Teixeira da Encarnacao, J., Hamilton, B., Hulot, G., van den IJssel, J., Kuvshinov, A., Lesur, V., Lühr, H., Macmillan, S., Maus, S., Noja, M., Olsen, Poul Erik Holmdahl, Park, J., Plank, G., Püthe, C., Rauberg, J., Ritter, P., Rother, M., Sabaka, T. J., Schachtschneider, R., Sirol, O., Stolle, Claudia, Thebault, E., Thomson, A. W. P., Tøffner-Clausen, Lars, Velimsky, J., Vigneron, P., Visser, P. N., Olsen, Nils, Friis-Christensen, Eigil, Floberghagen, R., Alken, P., Beggan, C. D., Chulliat, A., Doornbos, E., Teixeira da Encarnacao, J., Hamilton, B., Hulot, G., van den IJssel, J., Kuvshinov, A., Lesur, V., Lühr, H., Macmillan, S., Maus, S., Noja, M., Olsen, Poul Erik Holmdahl, Park, J., Plank, G., Püthe, C., Rauberg, J., Ritter, P., Rother, M., Sabaka, T. J., Schachtschneider, R., Sirol, O., Stolle, Claudia, Thebault, E., Thomson, A. W. P., Tøffner-Clausen, Lars, Velimsky, J., Vigneron, P., and Visser, P. N.

Abstract

Swarm, a three-satellite constellation to study the dynamics of the Earth's magnetic field and its interactions with the Earth system, is expected to be launched in late 2013. The objective of the Swarm mission is to provide the best ever survey of the geomagnetic field and its temporal evolution, in order to gain new insights into the Earth system by improving our understanding of the Earth's interior and environment. In order to derive advanced models of the geomagnetic field (and other higher-level data products) it is necessary to take explicit advantage of the constellation aspect of Swarm. The Swarm SCARF (Satellite Constellation Application and Research Facility) has been established with the goal of deriving Level-2 products by combination of data from the three satellites, and of the various instruments. The present paper describes the Swarm input data products (Level-1b and auxiliary data) used by SCARF, the various processing chains of SCARF, and the Level-2 output data products determined by SCARF.

Published
2013

33. The ecological and evolutionary implications of merging different types of networks

Author

Fontaine, C., Guimaraes, P.R., Kefi, S., Loeuille, N., Memmott, J., Van der Putten, W.H., Van Veen, F.J.F., Thebault, E., Fontaine, C., Guimaraes, P.R., Kefi, S., Loeuille, N., Memmott, J., Van der Putten, W.H., Van Veen, F.J.F., and Thebault, E.

Abstract

Interactions among species drive the ecological and evolutionary processes in ecological communities. These interactions are effectively key components of biodiversity. Studies that use a network approach to study the structure and dynamics of communities of interacting species have revealed many patterns and associated processes. Historically these studies were restricted to trophic interactions, although network approaches are now used to study a wide range of interactions, including for example the reproductive mutualisms. However, each interaction type remains studied largely in isolation from others. Merging the various interaction types within a single integrative framework is necessary if we want to further our understanding of the ecological and evolutionary dynamics of communities. Dividing the networks up is a methodological convenience as in the field the networks occur together in space and time and will be linked by shared species. Herein, we outline a conceptual framework for studying networks composed of more than one type of interaction, highlighting key questions and research areas that would benefit from their study., Interactions among species drive the ecological and evolutionary processes in ecological communities. These interactions are effectively key components of biodiversity. Studies that use a network approach to study the structure and dynamics of communities of interacting species have revealed many patterns and associated processes. Historically these studies were restricted to trophic interactions, although network approaches are now used to study a wide range of interactions, including for example the reproductive mutualisms. However, each interaction type remains studied largely in isolation from others. Merging the various interaction types within a single integrative framework is necessary if we want to further our understanding of the ecological and evolutionary dynamics of communities. Dividing the networks up is a methodological convenience as in the field the networks occur together in space and time and will be linked by shared species. Herein, we outline a conceptual framework for studying networks composed of more than one type of interaction, highlighting key questions and research areas that would benefit from their study.

Published
2011

38. Global characteristics and outcomes of SARS-CoV-2 infection in children and adolescents with cancer (GRCCC): a cohort study

Author

Sheena Mukkada, Nickhill Bhakta, Guillermo L Chantada, Yichen Chen, Yuvanesh Vedaraju, Lane Faughnan, Maysam R Homsi, Hilmarie Muniz-Talavera, Radhikesh Ranadive, Monika Metzger, Paola Friedrich, Asya Agulnik, Sima Jeha, Catherine Lam, Rashmi Dalvi, Laila Hessissen, Daniel C Moreira, Victor M Santana, Michael Sullivan, Eric Bouffet, Miguela A Caniza, Meenakshi Devidas, Kathy Pritchard-Jones, Carlos Rodriguez-Galindo, A Juan Ribelles, Adriana Balduzzi, Alaa Elhaddad, Alejandra Casanovas, Alejandra Garcia Velazquez, Aliaksandra Laptsevich, Alicia Chang, Alessandra Lamenha F. Sampaio, Almudena González Prieto, Alvaro Lassaletta, Amaranto Suarez M, Ana Patricia Alcasabas, Anca Colita, Andres Morales La Madrid, Angélica Samudio, Annalisa Tondo, Antonella Colombini, Antonis Kattamis, N Araceli Lopez Facundo, Arpita Bhattacharyya, Aurélia Alimi, Aurélie Phulpin, Barbora Vakrmanova, Basak A Aksoy, Benoit Brethon, Jator Brian Kobuin, Carla Nolasco Monteiro, Catherine Paillard, Catherine Vezina, Bozkurt Ceyhun, Cristiana Hentea, Cristina Meazza, Daniel Ortiz-Morales, Roque Daniel Solorzano, Daniela Arce Cabrera, Daniele Zama, Debjani Ghosh, Diana Ramírez-Rivera, Doris A Calle Jara, Dragana Janic, Elianneth Rey Helo, Elodie Gouache, Enmanuel Guerrero Quiroz, Enrique Lopez, Eric Thebault, Essy Maradiegue, Eva de Berranger, Fatma S E Ebeid, Federica Galaverna, Federico Antillon-Klussmann, Felipe Espinoza Chacur, Fernando Daniel Negro, Francesca Carraro, Francesca Compagno, Francisco Barriga, Gabriela Tamayo Pedraza, Gissela Sanchez Fernandez, Gita Naidu, Gülnur Tokuc, Hamidah Alias, Hannah Grace B Segocio, Houda Boudiaf, Imelda Asetre Luna, Iris Maia, Itziar Astigarraga, Ivan Maza, Jacqueline E Montoya Vásquez, Janez Jazbec, Jelena Lazic, Jeniffer Beck Dean, Jeremie Rouger-Gaudichon, Johanny Carolina Contreras González, Jorge Huerta Aragonés, José L Fuster, Juan Quintana, Julia Palma, Karel Svojgr, Karina Quintero, Karolina Malic Tudor, Kleopatra Georgantzi, Kris Ann P Schultz, Laura Ureña Horno, Lidia Fraquelli, Linda Meneghello, Lobna Shalaby, Lola L Macias Mora, Lorna A Renner, Luciana Nunes Silva, Luisa Sisinni, Mahmoud Hammad, M Fernández Sanmartín, C Marcela Zubieta A, María Constanza Drozdowski, Maria Kourti, Marcela María Palladino, Maria R Miranda Madrazo, Marilyne Poiree, Marina Popova, Mario Melgar, Marta Baragaño, Martha J Avilés-Robles, Massimo Provenzi, Mecneide Mendes Lins, Mehmet Fatih Orhan, Milena Villarroel, Mónica Jerónimo, Mónica Varas Palma, Muhammad Rafie Raza, Mulindwa M Justin, Najma Shaheen, Nerea Domínguez-Pinilla, Nicholas S Whipple, Nicolas André, Ondrej Hrusak, Pablo Velasco Puyó, Pamela Zacasa Vargas, Paola Olate Mellado, Pascale Yola Gassant, Paulina Diaz Romero, Raffaella De Santis, Rejin Kebudi, Riza Boranbayeva, Roberto Vasquez, Romel A. Segura, Roy Enrique Rosado, Sandra Gómez, Sandra Raimbault, Sanjeeva Gunasekera, Sara M Makkeyah, Sema Buyukkapu Bay, Sergio M Gómez, Séverine Bouttefroy, Shahnoor Islam, Sherif Abouelnaga, Silvio Fabio Torres, Simone Cesaro, Sofia Nunes, Soraia Rouxinol, Sucharita Bhaumik, Symbat Saliyeva, Tamara Inostroza, Thelma Velasquez, Tint Myo Hnin, Ulrika Norén-Nyström, Valentina Baretta, Yajaira Valentine Jimenez-Antolinez, Vanesa Pérez Alonso, Vanessa Ayer Miller, Virginie Gandemer, Viviana Lotero, Volha Mishkova, Wendy Gómez-García, Yeva Margaryan, Yumna Syed, Mukkada S., Bhakta N., Chantada G.L., Chen Y., Vedaraju Y., Faughnan L., Homsi M.R., Muniz-Talavera H., Ranadive R., Metzger M., Friedrich P., Agulnik A., Jeha S., Lam C., Dalvi R., Hessissen L., Moreira D.C., Santana V.M., Sullivan M., Bouffet E., Caniza M.A., Devidas M., Pritchard-Jones K., Rodriguez-Galindo C., Ribelles A.J., Balduzzi A., Elhaddad A., Casanovas A., Garcia Velazquez A., Laptsevich A., Chang A., F. Sampaio A.L., Gonzalez Prieto A., Lassaletta A., Suarez M A., Alcasabas A.P., Colita A., Morales La Madrid A., Samudio A., Tondo A., Colombini A., Kattamis A., Lopez Facundo N.A., Bhattacharyya A., Alimi A., Phulpin A., Vakrmanova B., Aksoy B.A., Brethon B., Kobuin J.B., Nolasco Monteiro C., Paillard C., Vezina C., Ceyhun B., Hentea C., Meazza C., Ortiz-Morales D., Solorzano R.D., Arce Cabrera D., Zama D., Ghosh D., Ramirez-Rivera D., Calle Jara D.A., Janic D., Rey Helo E., Gouache E., Guerrero Quiroz E., Lopez E., Thebault E., Maradiegue E., de Berranger E., Ebeid F.S.E., Galaverna F., Antillon-Klussmann F., Espinoza Chacur F., Negro F.D., Carraro F., Compagno F., Barriga F., Tamayo Pedraza G., Sanchez Fernandez G., Naidu G., Tokuc G., Alias H., B Segocio H.G., Boudiaf H., Asetre Luna I., Maia I., Astigarraga I., Maza I., Montoya Vasquez J.E., Jazbec J., Lazic J., Beck Dean J., Rouger-Gaudichon J., Contreras Gonzalez J.C., Huerta Aragones J., Fuster J.L., Quintana J., Palma J., Svojgr K., Quintero K., Malic Tudor K., Georgantzi K., P Schultz K.A., Urena Horno L., Fraquelli L., Meneghello L., Shalaby L., Macias Mora L.L., A Renner L., Nunes Silva L., Sisinni L., Hammad M., Fernandez Sanmartin M., Zubieta A C.M., Drozdowski M.C., Kourti M., Palladino M.M., Miranda Madrazo M.R., Poiree M., Popova M., Melgar M., Baragano M., Aviles-Robles M.J., Provenzi M., Mendes Lins M., Fatih Orhan M., Villarroel M., Jeronimo M., Varas Palma M., Rafie Raza M., M Justin M., Shaheen N., Dominguez-Pinilla N., Whipple N.S., Andre N., Hrusak O., Velasco Puyo P., Zacasa Vargas P., Olate Mellado P., Yola Gassant P., Diaz Romero P., De Santis R., Kebudi R., Boranbayeva R., Vasquez R., Segura R.A., Rosado R.E., Gomez S., Raimbault S., Gunasekera S., Makkeyah S.M., Buyukkapu Bay S., M Gomez S., Bouttefroy S., Islam S., Abouelnaga S., Torres S.F., Cesaro S., Nunes S., Rouxinol S., Bhaumik S., Saliyeva S., Inostroza T., Velasquez T., Hnin T.M., Noren-Nystrom U., Baretta V., Jimenez-Antolinez Y.V., Perez Alonso V., Ayer Miller V., Gandemer V., Lotero V., Mishkova V., Gomez-Garcia W., Margaryan Y., Syed Y., Mukkada, S, Bhakta, N, Chantada, G, Chen, Y, Vedaraju, Y, Faughnan, L, Homsi, M, Muniz-Talavera, H, Ranadive, R, Metzger, M, Friedrich, P, Agulnik, A, Jeha, S, Lam, C, Dalvi, R, Hessissen, L, Moreira, D, Santana, V, Sullivan, M, Bouffet, E, Caniza, M, Devidas, M, Pritchard-Jones, K, Rodriguez-Galindo, C, Ribelles, A, Balduzzi, A, Elhaddad, A, Casanovas, A, Garcia Velazquez, A, Laptsevich, A, Chang, A, F. Sampaio A., L, Gonzalez Prieto, A, Lassaletta, A, Suarez M, A, Alcasabas, A, Colita, A, Morales La Madrid, A, Samudio, A, Tondo, A, Colombini, A, Kattamis, A, Lopez Facundo, N, Bhattacharyya, A, Alimi, A, Phulpin, A, Vakrmanova, B, Aksoy, B, Brethon, B, Kobuin, J, Nolasco Monteiro, C, Paillard, C, Vezina, C, Ceyhun, B, Hentea, C, Meazza, C, Ortiz-Morales, D, Solorzano, R, Arce Cabrera, D, Zama, D, Ghosh, D, Ramirez-Rivera, D, Calle Jara, D, Janic, D, Rey Helo, E, Gouache, E, Guerrero Quiroz, E, Lopez, E, Thebault, E, Maradiegue, E, de Berranger, E, Ebeid, F, Galaverna, F, Antillon-Klussmann, F, Espinoza Chacur, F, Negro, F, Carraro, F, Compagno, F, Barriga, F, Tamayo Pedraza, G, Sanchez Fernandez, G, Naidu, G, Tokuc, G, Alias, H, B Segocio, H, Boudiaf, H, Asetre Luna, I, Maia, I, Astigarraga, I, Maza, I, Montoya Vasquez, J, Jazbec, J, Lazic, J, Beck Dean, J, Rouger-Gaudichon, J, Contreras Gonzalez, J, Huerta Aragones, J, Fuster, J, Quintana, J, Palma, J, Svojgr, K, Quintero, K, Malic Tudor, K, Georgantzi, K, P Schultz, K, Urena Horno, L, Fraquelli, L, Meneghello, L, Shalaby, L, Macias Mora, L, A Renner, L, Nunes Silva, L, Sisinni, L, Hammad, M, Fernandez Sanmartin, M, Zubieta A, C, Drozdowski, M, Kourti, M, Palladino, M, Miranda Madrazo, M, Poiree, M, Popova, M, Melgar, M, Baragano, M, Aviles-Robles, M, Provenzi, M, Mendes Lins, M, Fatih Orhan, M, Villarroel, M, Jeronimo, M, Varas Palma, M, Rafie Raza, M, M Justin, M, Shaheen, N, Dominguez-Pinilla, N, Whipple, N, Andre, N, Hrusak, O, Velasco Puyo, P, Zacasa Vargas, P, Olate Mellado, P, Yola Gassant, P, Diaz Romero, P, De Santis, R, Kebudi, R, Boranbayeva, R, Vasquez, R, Segura, R, Rosado, R, Gomez, S, Raimbault, S, Gunasekera, S, Makkeyah, S, Buyukkapu Bay, S, M Gomez, S, Bouttefroy, S, Islam, S, Abouelnaga, S, Torres, S, Cesaro, S, Nunes, S, Rouxinol, S, Bhaumik, S, Saliyeva, S, Inostroza, T, Velasquez, T, Hnin, T, Noren-Nystrom, U, Baretta, V, Jimenez-Antolinez, Y, Perez Alonso, V, Ayer Miller, V, Gandemer, V, Lotero, V, Mishkova, V, Gomez-Garcia, W, Margaryan, Y, and Syed, Y

Subjects
Male, Pediatrics, medicine.medical_specialty, COVID-19, Children, adolescents, cancer, Adolescent, MEDLINE, Severity of Illness Index, Health systems, Neoplasms, purl.org/becyt/ford/3.2 [https], Severity of illness, medicine, Humans, Child, Children, Pandemics, Pandemic, business.industry, SARS-CoV-2, Risk Factor, Infant, Newborn, Infant, Cancer, COVID-19, Odds ratio, Articles, medicine.disease, Transplantation, Oncology, Child, Preschool, Cohort, Absolute neutrophil count, Neoplasm, purl.org/becyt/ford/3 [https], Female, Cohort Studie, business, Delivery of Health Care, Human, Cohort study
Abstract

Background: Previous studies have shown that children and adolescents with COVID-19 generally have mild disease. Children and adolescents with cancer, however, can have severe disease when infected with respiratory viruses. In this study, we aimed to understand the clinical course and outcomes of SARS-CoV-2 infection in children and adolescents with cancer. Methods: We did a cohort study with data from 131 institutions in 45 countries. We created the Global Registry of COVID-19 in Childhood Cancer to capture de-identified data pertaining to laboratory-confirmed SARS-CoV-2 infections in children and adolescents (

Published
2021

39. Time to blood culture positivity: An independent predictor of infective endocarditis and mortality in patients with Staphylococcus aureus bacteraemia

Author

V. Le Moing, Sandrine Barbas, Elodie Curlier, Hélène Jean-Pierre, Willem Vanwamel, Damien Fournier, Isabelle Patry, Eric Bellissant, Jacques Reynes, Sandrine Gohier-Treuvelot, François Alla, Catherine Chirouze, Fabienne Le Gac, Catherine Neuwirth, Philippe Géraud, François Goehringer, Christine Selton-Suty, Bruno Hoen, Virginie Sussmuth, Christine Delonca, Nathalie Keil, Catherine Sportouch, Thanh Doco-Lecompte, S. Tubiana, F. Vandenesch, Laetitia Minary, S. Desage, Catherine Leport, Hepher Malela, Cécile Descottes-Genon, Lionel Piroth, Christian Michelet, Pascale Rausch, Matthieu Revest, Bernard Iung, Jerome Etienne, Albert Sotto, Vincent Le Moing, J.-P. Lavigne, Catherine Cornu, Fernando Rivadeneira, Elise Thebault, Nathalie Bedos, Pierre-Yves Donnio, Lucie Vettoretti, Michèle Bes, S. Siméon, Jean-Christophe Eicher, Catherine Lechiche, X. Duval, François Vandenesch, Marie Célard, Pascal Chavanet, Sarah Tubiana, Raymond Ruimy, M.-L. Erpelding, Thierry May, André Pechinot, Nejla Aissa, Emila Ilic Habensus, François Delahaye, C.-A. Gustave, Lorraine Letranchant, Taissia Lelekov-Boissard, C. Chirouze, Anne Tristan, Audrey Coma, Jean-Philippe Lavigne, Xavier Duval, Pierre Tattevin, Alex van Belkum, Pierre Braquet, Marie-Line Erpelding, Pascale Longuet, Malika Hadid, Marie-Christine Greusard, Florence Galtier, Anne Verchère, P. Tattevin, Service des maladies infectieuses et réanimation médicale [Rennes] = Infectious Disease and Intensive Care [Rennes], CHU Pontchaillou [Rennes], Maladies Infectieuses [CHU de Montpellier], Centre Hospitalier Universitaire de Montpellier (CHU Montpellier ), Infection, Anti-microbiens, Modélisation, Evolution (IAME (UMR_S_1137 / U1137)), Université Paris 13 (UP13)-Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC)-Institut National de la Santé et de la Recherche Médicale (INSERM), CIC1425 Bichat [AP-HP Hôpital Bichat - Claude Bernard] (INSERM), AP-HP - Hôpital Bichat - Claude Bernard [Paris], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire de Bactériologie [CHRU Besançon], Centre Hospitalier Régional Universitaire de Besançon (CHRU Besançon), Virulence bactérienne et maladies infectieuses (VBMI), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), Service de Microbiologie [CHU Caremeau, Nîmes], Hôpital Universitaire Carémeau [Nîmes] (CHU Nîmes), Centre Hospitalier Universitaire de Nîmes (CHU Nîmes)-Centre Hospitalier Universitaire de Nîmes (CHU Nîmes), Centre d'investigation clinique [Nancy] (CIC), Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre National de référence des Staphylocoques [HCL, Lyon] (Institut des Agents Infectieux), Hospices Civils de Lyon (HCL), Laboratoire de Bactériologie [HCL, Lyon] (Institut des Agents Infectieux), Laboratoire Chrono-environnement - CNRS - UBFC (UMR 6249) (LCE), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), ARN régulateurs bactériens et médecine (BRM), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), VIRSTA/AEPEI Study Group. Chirouze C, Curlier E, Descottes-Genon C, Hoen B, Patry I, Vettoretti L, Chavanet P, Eicher JC, Gohier-Treuvelot S, Greusard MC, Neuwirth C, Péchinot A, Piroth L, Célard M, Cornu C, Delahaye F, Hadid M, Rausch P, Coma A, Galtier F, Géraud P, Jean-Pierre H, Le Moing V, Sportouch C, Reynes J, Aissa N, Doco-Lecompte T, Goehringer F, Keil N, Letranchant L, Malela H, May T, Selton-Suty C, Bedos N, Lavigne JP, Lechiche C, Sotto A, Duval X, Habensus EI, Iung B, Leport C, Longuet P, Ruimy R, Bellissant E, Donnio PY, Le Gac F, Michelet C, Revest M, Tattevin P, Thebault E, Alla F, Braquet P, Erpelding ML, Minary L, Tubiana S, Bès M, Etienne J, Lelekov-Boissard T, Tristan A, Vandenesch F, Van Belkum A, Rivadeneira F, Vanwamel W, Barbas S, Delonca C, Sussmuth V, Verchère A., Service des maladies infectieuses et réanimation médicale, Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Hôpital Pontchaillou, Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris 13 (UP13)-Université Paris Diderot - Paris 7 (UPD7)-Université Sorbonne Paris Cité (USPC), AP-HP - Hôpital Bichat - Claude Bernard [Paris]-Université Paris Diderot - Paris 7 (UPD7)-Institut National de la Santé et de la Recherche Médicale (INSERM), Centre Hospitalier Régional Universitaire [Besançon] (CHRU Besançon), CHU Caremeau, Nîmes, CIC-Nancy, Institut Lorrain du Coeur et des Vaisseaux Louis Mathieu [Nancy]-Institut National de la Santé et de la Recherche Médicale (INSERM), Laboratoire Chrono-environnement - UFC (UMR 6249) (LCE), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC), Recherches Translationnelles sur le VIH et les maladies infectieuses (TransVIHMI), Université Montpellier 1 (UM1)-Institut de Recherche pour le Développement (IRD)-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Universtié Yaoundé 1 [Cameroun]-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Montpellier (UM), CIC Hôpital Bichat, Institut National de la Santé et de la Recherche Médicale (INSERM)-UFR de Médecine-AP-HP - Hôpital Bichat - Claude Bernard [Paris], Modèles et méthodes de l'évaluation thérapeutique des maladies chroniques (U738 / UMR_S738), Institut National de la Santé et de la Recherche Médicale (INSERM)-Université Paris Diderot - Paris 7 (UPD7), Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC), service de maladies infectieuses CHU J Minjoz Besancon, Hôpital Jean Minjoz, Centre National de référence des Staphylocoques, Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Hospices Civils de Lyon (HCL), Service des Maladies Infectieuses et Tropicales [Point-à-Pitre, Guadeloupe], CHU Pointe-à-Pitre/Abymes [Guadeloupe], Centre d'Investigation Clinique Antilles-Guyane (CIC - Antilles Guyane), Université des Antilles et de la Guyane (UAG)-Institut National de la Santé et de la Recherche Médicale (INSERM)-CHU Pointe-à-Pitre/Abymes [Guadeloupe] -CHU de Fort de France-Centre Hospitalier Andrée Rosemon [Cayenne, Guyane Française], Service de Cardiologie [CHU de Dijon], Centre Hospitalier Universitaire de Dijon - Hôpital François Mitterrand (CHU Dijon), Biologie Laboratoire de Bacteriologie, Laboratoire de Microbiologie Médicale et Moléculaire, Université de Bourgogne (UB), Département d'infectiologie (CHU de Dijon), Evaluation et modélisation des effets thérapeutiques, Département biostatistiques et modélisation pour la santé et l'environnement [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-Centre National de la Recherche Scientifique (CNRS)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), REseau national d'Investigation clinique en VACcinologie (REIVAC), Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Cochin [AP-HP]-Hôtel-Dieu-Groupe hospitalier Broca-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de Gestion des Essais de Produits de Santé (CeNGEPS), Centre Hospitalier Régional Universitaire [Montpellier] (CHRU Montpellier), Département Maladies Infectieuses et Tropicales, Hôpital Universitaire, Montpellier, France, Service de Bactériologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Service des Maladies Infectieuses et Tropicales [CHRU Nancy], Service de Cardiologie [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nîmes (CHRU Nîmes), Laboratoire universitaire d'antibiologie, Université Montpellier 1 (UM1), CIC - CHU Bichat, Institut National de la Santé et de la Recherche Médicale (INSERM), Hôpital Bichat - Claude Bernard, Centre d'Investigation Clinique [Rennes] (CIC), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Hôpital Pontchaillou-Institut National de la Santé et de la Recherche Médicale (INSERM), Microbiologie : Risques Infectieux, Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-CHU Pontchaillou [Rennes]-Faculté de Chirurgie Dentaire de Rennes-Faculté d'Odontologie-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Service des maladies infectieuses, Maladies chroniques, santé perçue, et processus d'adaptation (APEMAC), Université de Lorraine (UL), CHU Montpellier, Service d'Epidémiologie et Evaluations Cliniques [CHRU Nancy] (Pôle S2R), Centre National de Reference des Staphylocoques, Université de Lyon, Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Laboratoire Chrono-environnement (UMR 6249) (LCE), Université de Rennes (UR)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), and Jonchère, Laurent

Subjects
Male, Methicillin-Resistant Staphylococcus aureus, 0301 basic medicine, Microbiology (medical), Staphylococcus aureus, bacteraemia, medicine.medical_specialty, Time Factors, Multivariate analysis, 030106 microbiology, Bacteremia, Independent predictor, medicine.disease_cause, 03 medical and health sciences, 0302 clinical medicine, Interquartile range, hemic and lymphatic diseases, Internal medicine, medicine, Humans, Blood culture, Prospective Studies, 030212 general & internal medicine, time to blood culture positivity, Prospective cohort study, [SDV.MP] Life Sciences [q-bio]/Microbiology and Parasitology, Aged, medicine.diagnostic_test, infective endocarditis, business.industry, Endocarditis, Bacterial, General Medicine, Middle Aged, Staphylococcal Infections, respiratory system, medicine.disease, mortality, 3. Good health, [SDV.MP]Life Sciences [q-bio]/Microbiology and Parasitology, Infectious Diseases, Quartile, Blood Culture, Infective endocarditis, Female, business, [SDV.MHEP]Life Sciences [q-bio]/Human health and pathology
Abstract

International audience; Objectives - Time to blood culture positivity (TTP), a routinely available parameter in automated blood culture systems, may be a proxy for infectious burden in patients with bloodstream infections. We aimed to study the association between TTP and infective endocarditis (IE), or death, in patients with Staphylococcus aureus bacteraemia. Methods - VIRSTA is a multicenter prospective cohort study that included all adult patients with S. aureus bacteraemia in eight university hospitals in France (2009-2011). We analyzed data from four centers which collected data on TTP. Regression models were used to study the association between TTP and definite IE (Duke-Li criteria), and 30 day-mortality. Results - We included 587 patients with S. aureus bacteraemia: mean age was 65.3±16.3 years, 420/587 patients (71.6%) were male, 121/587 (20.6%) died, and 42/587 (7.2%) had definite IE. Median TTP of first positive blood culture was 13.7 h (interquartile range, 9.9-18). On multivariate analysis, 30-day mortality was associated with TTP≤13.7 h (74/295 (25.1%) vs 47/292 (16.1%), P=0.02), as well as old age, McCabe score, methicillin resistance, stroke, pneumonia, and C-Reactive Protein. TTP was also independently associated with IE, but with a U-shape curve: IE was more common in the first (TTP18 h, 8/146, 5.5%) quartiles of TTP, P=0.002. Conclusions - TTP provides reliable information in patients with S. aureus bacteraemia, on the risk of IE, and prognosis, with short TTP being an independent predictor of death. This data readily available at no cost may be used to identify patients who require specific attention.

Published
2019
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40. Cervical Lymph Node Invasion in Pediatric Salivary Gland Malignancies: Clinical Overview and Therapeutic Implications.

Author

Richard C, Carton M, Hazkani I, Couloigner V, Sheyn A, Rastatter J, Haroun L, Helmig S, Houston MB, Helfre S, Thebault E, Andre N, Faure Conter C, Teissier N, Fresneau B, and Orbach D

Abstract

Background and Aims: Pediatric salivary gland malignancies (SGM) present challenges in managing cervical nodes. We aimed to characterize lymph node invasion to inform decisions regarding the need of systematic wide lymph node dissection (WLND)., Methods: International retrospective study, conducted across seven large French and American pediatric centers, including pediatric patients (0-18 years) diagnosed with SGM from 2000 to 2020., Results: Among the 82 patients (median age 13 years), the parotid gland was frequently affected (60 cases). Histotypes comprised mucoepidermoid (mucoepidermoid carcinoma [MEC], 43 cases), acinic cells (acinic cells carcinoma [AcCC], 22 cases), adenoid cystic (adenoid cystic carcinoma [AdCC], 8 cases), (MASC, 6 cases), and adenocarcinoma (3 cases). Primary treatments were surgery (82 cases) and radiotherapy (20 cases; median dosage 64 gray). Cervical nodes therapy included WLND (≥2 levels, 29 cases), limited nodes resection (LNR; one level, 13 cases), and/or irradiation (4 cases; median 54 gray; range 52.0-63.0). At diagnosis, six patients had cervical node invasion (CNI) managed with LNR (four cases), WLND (two cases), and radiotherapy (three cases). After a median follow-up of 6 years (range 1-22), nine patients had tumor event: local (four cases), cervical relapse/progression (three cases) or combined (two cases). Of the nine with CNI, at diagnosis or relapse, four had MASC. Five-year event-free and overall survival (OS) rates were, respectively, 90.1% and 98.8%., Conclusions: CNI is rare in pediatric SGM but noted in 11% of cases, with higher incidence in MASC. Overall, outcome in SGM is good with a tailored locoregional multidisciplinary approach. Systematic lymph node dissection should be reconsidered., Summary: This international multi-institutional study analyzed the clinical presentation and the cervical pattern of relapse of 82 pediatric patients with newly diagnosed salivary gland malignancies. Overall, nodal invasion was rare at diagnosis and only noted in 7%. In addition, 6% developed nodal relapse during follow-up. Incidence of nodal spread was frequent in mammary analogue secretory carcinoma (MASC). The overall outcome was promising with a tailored locoregional multidisciplinary approach. Systematic lymph node dissection should be reconsidered in pediatric salivary gland tumors., (© 2025 Wiley Periodicals LLC.)

Published
2025
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41. Ecosystem synchrony: an emerging property to elucidate ecosystem responses to global change.

Author

Vagnon C, Olden JD, Boulêtreau S, Bruel R, Chevalier M, Garcia F, Holtgrieve G, Jackson M, Thebault E, Tedesco PA, and Cucherousset J

Subjects
Climate Change, Ecosystem
Abstract

Understanding ecosystem responses to global change have long challenged scientists due to notoriously complex properties arising from the interplay between biological and environmental factors. We propose the concept of ecosystem synchrony - that is, similarity in the temporal fluctuations of an ecosystem function between multiple ecosystems - to overcome this challenge. Ecosystem synchrony can manifest due to spatially correlated environmental fluctuations (Moran effect), exchange of energy, nutrients, and organic matter and similarity in biotic characteristics across ecosystems. By taking advantage of long-term surveys, remote sensing and the increased use of high-frequency sensors to assess ecosystem functions, ecosystem synchrony can foster our understanding of the coordinated ecosystem responses at unexplored spatiotemporal scales, identify emerging portfolio effects among ecosystems, and deliver signals of ecosystem perturbations., Competing Interests: Declaration of interests No interests are declared., (Copyright © 2024 Elsevier Ltd. All rights reserved.)

Published
2024
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42. Predictive factors of long-term follow-up attendance in very long-term childhood cancer survivors.

Author

Dumas A, Milcent K, Bougas N, Bejarano-Quisoboni D, El Fayech C, Charreire H, Oberlin O, Patte C, Allard J, Thebault E, Boumaraf A, Belhout A, Giao VB, Souchard V, Jackson A, Allodji R, Valteau-Couanet D, Dufour C, Vassal G, Haddy N, De Vathaire F, and Fresneau B

Abstract

Background: Long-term follow-up (LTFU) clinics have been developed but only some childhood cancer survivors (CCS) attend long-term follow-up (LTFU)., Objective: To identify factors that influence LTFU attendance., Methods: Five-year CCS treated for a solid tumor or lymphoma in Gustave Roussy before 2000, included in the FCCSS cohort (French Childhood Cancer Survivor Study), aged >18 years and alive at the date of the LTFU Clinic opening (January 2012) were invited to a LTFU visit. Factors associated with attendance at the LTFU clinic between 2012 and 2020 were estimated using logistic regression analyses. Analyses included different types of factors: clinical (tumor characteristics, cancer treatments, late effects), medical (medical expenses were used as a proxy of survivor's health status), social (deprivation index based on census-tract data relating to income, educational level, proportion of blue-collar workers, and unemployed people living in the area of residence), and spatial (distance to the LTFU clinic)., Results: Among 2341 CCS contacted (55% males, mean age at study, 45 years; SD ± 10 years; mean age at diagnosis, 6 years; SD ± 5 years), 779 (33%) attended at least one LTFU visit. Initial cancer-related factors associated with LTFU visit attendance were: treatment with both radiotherapy and chemotherapy (odds ratio [OR], 4.02; 95% CI, 2.11-7.70), bone sarcoma (OR, 2.43; 95% CI, 1.56-3.78), central nervous system primitive tumor (OR, 1.65; 95% CI, 1.02-2.67), and autologous hematopoietic cell transplant (OR, 2.07; 95% CI, 1.34-3.20). Late effects (OR, 1.70; 95% CI, 1.31-2.20), highest medical expenses (OR, 1.65; 95% CI, 1.22-2.22), living in the most advantaged area (OR vs. the most deprived area = 1.60; 95% CI, 1.15-2.22), and shorter distance from LTFU care center (<12 miles) also increased attendance., Conclusions: Patients who are apparently healthy as well as socially disadvantaged and living far away from the center are less likely to attend LTFU care., Plain Language Summary: Among 2341 adult childhood cancer survivors contacted between 2012 and 2020, 33% attended at least one long-term follow-up visit. Clinical factors related to attendance were multimodal treatment of first cancer (combining chemotherapy and radiotherapy), stem cell transplant, type of diagnosis (bone tumor and central nervous system primitive tumor), late effects (at least one disease among second malignancy, heart disease, or stroke), and highest medical expenses. In addition, the study identified social and spatial inequalities related to attendance, with independent negative effects of distance and social deprivation on attendance, even though the medical costs related to the long-term follow-up examinations are covered by the French social security system., (© 2023 The Authors. Cancer published by Wiley Periodicals LLC on behalf of American Cancer Society.)

Published
2023
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43. Surveillance after childhood cancer: are survivors with an increased risk for cardiomyopathy regularly followed-up?

Author

Bougas N, Allodji RS, Fayech C, Haddy N, Mansouri I, Journy N, Demoor C, Allard J, Thebault E, Surun A, Pacquement H, Pluchart C, Bondiau PY, Berchery D, Laprie A, Boussac M, Jackson A, Souchard V, Vu-Bezin G, Dufour C, Valteau-Couanet D, de Vathaire F, Fresneau B, and Dumas A

Subjects
Male, Humans, Child, Survivors, Neoplasms epidemiology, Cancer Survivors, Cardiomyopathies epidemiology, Cardiomyopathies etiology, Cardiomyopathies diagnosis, Neuroblastoma
Abstract

Background: We aimed to study adherence to cardiac screening in long-term childhood cancer survivors (CCS) at high risk of cardiomyopathy., Methods: This study involved 976 5-year CCS at high risk for cardiomyopathy from the French Childhood Cancer Survivor Study. Determinants of adherence to recommended surveillance were studied using multivariable logistic regression models. Association of attendance to a long-term follow-up (LTFU) visit with completion of an echocardiogram was estimated using a Cox regression model., Results: Among participants, 32% had an echocardiogram within the 5 previous years. Males (adjusted RR [aRR] 0.71, 95% CI 0.58-0.86), survivors aged 36-49 (aRR 0.79, 95% CI 0.64-0.98), Neuroblastoma (aRR 0.53, 95% CI 0.30-0.91) and CNS tumour survivors (aRR 0.43, 95% CI 0.21-0.89) were less likely to adhere to recommended surveillance. Attendance to an LTFU visit was associated with completion of an echocardiogram in patients who were not previously adherent to recommendations (HR 8.20, 95% CI 5.64-11.93)., Conclusions: The majority of long-term survivors at high risk of cardiomyopathy did not adhere to the recommended surveillance. Attendance to an LTFU visit greatly enhanced the completion of echocardiograms, but further interventions need to be developed to reach more survivors., (© 2023. The Author(s), under exclusive licence to Springer Nature Limited.)

Published
2023
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45. Native and exotic plants play different roles in urban pollination networks across seasons.

Author

Zaninotto V, Thebault E, and Dajoz I

Subjects
Animals, Seasons, Plants, Insecta, Flowers, Pollination, Ecosystem
Abstract

Urban areas often host exotic plant species, whether managed or spontaneous. These plants are suspected of affecting pollinator diversity and the structure of pollination networks. However, in dense cityscapes, exotic plants also provide additional flower resources during periods of scarcity, and the consequences for the seasonal dynamics of networks still need to be investigated. For two consecutive years, we monitored monthly plant-pollinator networks in 12 green spaces in Paris, France. We focused on seasonal variations in the availability and attractiveness of flower resources, comparing native and exotic plants at both the species and community levels. We also considered their respective contributions to network properties over time (specialization and nestedness). Exotic plants provided more abundant and diverse flower resources than native plants, especially from late summer on. However, native plants received more visits and attracted more pollinator species at the community level; and during certain times of the year at the species level as well. Exotic plants were involved in more generalist interactions, increasingly so over the seasons. In addition, they contributed more to network nestedness than native plants. These results show that exotic plants are major components of plant-pollinator interactions in a dense urban landscape, even though they are less attractive than natives. They constitute a core of generalist interactions that increase nestedness and can participate in the overall stability of the network. However, most exotic species were seldom visited by insects. Pollinator communities may benefit from including more native species when managing urban green spaces., (© 2023. The Author(s).)

Published
2023
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46. Mineral and Bone Consequences of High Dose Denosumab Therapy to Treat an Aneurysmal Bone Cyst, a Child Case Report.

Author

Del Sindaco G, Berlanga P, Brugières L, Thebault E, Mantovani G, Wicart P, and Linglart A

Subjects
Adolescent, Bone Cysts, Aneurysmal metabolism, Bone Cysts, Aneurysmal pathology, Bone Density drug effects, Bone Density Conservation Agents adverse effects, Bone Density Conservation Agents therapeutic use, Bone Remodeling drug effects, Bone and Bones physiology, Child, Child Development drug effects, Denosumab adverse effects, Follow-Up Studies, Genu Valgum chemically induced, Genu Valgum diagnosis, Genu Valgum pathology, Humans, Male, Spinal Diseases metabolism, Spinal Diseases pathology, Bone Cysts, Aneurysmal drug therapy, Bone and Bones drug effects, Denosumab therapeutic use, Minerals metabolism, Spinal Diseases drug therapy
Abstract

Aneurysmal bone cysts (ABCs) are rare benign pseudotumoral bone lesions with potential aggressive behavior due to the extensive destruction of surrounding bone. Traditionally, these tumors were treated with open surgery, but there is more and more a shift to less invasive procedures. In particular, treatment for spinal ABCs is generally unsatisfactory due to the risk of morbidity, neurological impairment and recurrence, and there is a need for innovative therapies. Denosumab has been reported as a useful treatment in giant cell tumors of bone (GCTB), so its efficacy has been tested also in other fibro-osseus lesions affecting children and adolescents, such as spinal aneurysmal bone cysts. The pediatric literature is limited to case reports and small series, all of which highlight the efficacy of this treatment on lesions growth and associated bone pain. Some of these reports have already reported well known side effects associated with denosumab, such as hypocalcemia at the beginning of the treatment, and rebound hypercalcemia at the discontinuation. The latter seems to be more frequent in children and adolescents than in adults, probably due to the higher baseline bone turnover in children. In addition, the use of denosumab in young patients could affect both bone modeling and remodeling, even if the consequences on the growing skeleton have not been reported in detail. Here we describe the case of a spinal ABC diagnosed in an 8-year old young boy which was not accessible to surgery but responded favorably to denosumab. Our aim is to describe the rapid changes in mineral and bone homeostasis in this patient, that required advice from the experts of the European Reference Network (ERN) for rare bone and endocrine diseases., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2021 Del Sindaco, Berlanga, Brugières, Thebault, Mantovani, Wicart and Linglart.)

Published
2021
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47. Successive Osteosarcoma Relapses after the First Line O2006/Sarcome-09 Trial: What Can We Learn for Further Phase-II Trials?

Author

Thebault E, Piperno-Neumann S, Tran D, Pacquement H, Marec-Berard P, Lervat C, Castex MP, Cleirec M, Bompas E, Vannier JP, Plantaz D, Saumet L, Verite C, Collard O, Pluchart C, Briandet C, Monard L, Brugieres L, Le Deley MC, and Gaspar N

Abstract

The purpose was to describe first and subsequent relapses in patients from the OS2006/Sarcome-09 trial, to help future trial design. We prospectively collected and analysed relapse data of all French patients included in the OS2006/Sarcome-09 trial, who had achieved a first complete remission. 157 patients experienced a first relapse. The median interval from diagnosis to relapse was 1.7 year (range 0.5-7.6). The first relapse was metastatic in 83% of patients, and disease was not measurable according to RECIST 1.1 criteria in 23%. Treatment consisted in systemic therapy (74%) and surgical resection (68%). A quarter of the patients were accrued in a phase-II clinical trial. A second complete remission was obtained for 79 patients. Most of them had undergone surgery (76/79). The 3-year progression-free and overall survival rates were 21% and 37%, respectively. In patients who achieved CR2, the 3y-PFS and OS rates were 39% and 62% respectively. Individual correlation between subsequent PFS durations was poor. For osteosarcoma relapses, we recommend randomised phase-II trials, open to patients from all age categories (children, adolescents, adults), not limited to patients with measurable disease (but stratified according to disease status), with PFS as primary endpoint, response rate and surgical CR as secondary endpoints.

Published
2021
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48. Multidrug-resistant bacterial carriage and related healthcare-associated infections in a pediatric intensive care unit: a 6-year prospective study.

Author

Levy M, Bonacorsi S, Naudin J, Caseris M, Thebault E, Mariani-Kurkdjian P, Chomton M, Sommet J, Dauger S, and Doit C

Subjects
Humans, Nose microbiology, Prospective Studies, Rectum microbiology, Carrier State epidemiology, Cross Infection epidemiology, Drug Resistance, Multiple, Bacterial, Intensive Care Units, Pediatric statistics & numerical data
Published
2019
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49. Oncologic Phenotype of Peripheral Neuroblastic Tumors Associated With PHOX2B Non-Polyalanine Repeat Expansion Mutations.

Author

Heide S, Masliah-Planchon J, Isidor B, Guimier A, Bodet D, Coze C, Deville A, Thebault E, Pasquier CJ, Cassagnau E, Pierron G, Clément N, Schleiermacher G, Amiel J, Delattre O, Peuchmaur M, and Bourdeaut F

Subjects
Adult, Causality, Child, Child, Preschool, Chromosome Aberrations, DNA Repeat Expansion, Ganglioneuroblastoma genetics, Ganglioneuroblastoma pathology, Ganglioneuroma pathology, Humans, Hypothalamic Diseases genetics, Hypothalamic Diseases pathology, Hypoventilation congenital, Hypoventilation genetics, Hypoventilation pathology, Infant, Mutation, Neuroblastoma pathology, Neuroblastoma therapy, Nucleic Acid Hybridization, Peripheral Nervous System Neoplasms pathology, Peripheral Nervous System Neoplasms therapy, Phenotype, Prognosis, Sleep Apnea, Central genetics, Sleep Apnea, Central pathology, Treatment Outcome, Homeodomain Proteins genetics, Neuroblastoma genetics, Peripheral Nervous System Neoplasms genetics, Transcription Factors genetics
Abstract

Background: Germline non-polyalanine repeat expansion mutations in PHOX2B (PHOX2B NPARM) predispose to peripheral neuroblastic tumors (PNT), frequently in association with other neurocristopathies: Hirschsprung disease (HSCR) or congenital central hypoventilation syndrome (CCHS). Although PHOX2B polyalanine repeat expansions predispose to a low incidence of benign PNTs, the oncologic phenotype associated with PHOX2B NPARM is still not known in detail., Methods: We analyzed prognostic factors, treatment toxicity, and outcome of patients with PNT and PHOX2B NPARM., Results: Thirteen patients were identified, six of whom also had CCHS and/or HSCR, one also had late-onset hypoventilation with hypothalamic dysfunction (LO-CHS/HD), and six had no other neurocristopathy. Four tumours were "poorly differentiated," and nine were differentiated, including five ganglioneuromas, three ganglioneuroblastomas, and one differentiating neuroblastoma, hence illustrating that PHOX2B NPARM are predominantly associated with differentiating tumors. Nevertheless, three patients had stage 4 and one patient had stage 3 disease. Segmental chromosomal alterations, correlating with poor prognosis, were found in all the six tumors analyzed by array-comparative genomic hybridization. One patient died of tumor progression, one is on palliative care, one died of hypoventilation, and 10 patients are still alive, with median follow-up of 5 years., Conclusions: Based on histological phenotype, our series suggests that heterozygous PHOX2B NPARM do not fully preclude ganglion cell differentiation in tumors. However, this tumor predisposition syndrome may also be associated with poorly differentiated tumors with unfavorable genomic profiles and clinically aggressive behaviors. The intrafamilial variability and the unpredictable tumor prognosis should be considered in genetic counseling., (© 2015 Wiley Periodicals, Inc.)

Published
2016
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