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2. Impact of selective reporting of antibiotic susceptibility testing results for urinary tract infections in the outpatient setting: a prospective controlled before-after intervention study

Author

Bocquier, Aurélie, Charmillon, Alexandre, Chopard, Virginie, Delpuech, Marion, Fagot-Campagna, Anne, Kivits, Joëlle, Le Dref, Gaëlle, Lozniewski, Alain, Luc, Amandine, Mauffrey, Violaine, Rabaud, Christian, Varon, Emmanuelle, Simon, Maïa, Fougnot, Sébastien, De Monchy, Patrice, Duda, Alain, Thilly, Nathalie, and Pulcini, Céline

Published
2023
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3. Usefulness of procalcitonin at admission as a risk-stratifying biomarker for 50-day in-hospital mortality among patients with community-acquired bloodstream infection: an observational cohort study

Author

Abderrahim Oussalah, Jonas Callet, Anne-Elisabeth Manteaux, Nathalie Thilly, Nicolas Jay, Jean-Louis Guéant, and Alain Lozniewski

Subjects
Procalcitonin, Risk-stratifying biomarker, 50-day in-hospital mortality, Community-acquired bloodstream infections, Therapeutics. Pharmacology, RM1-950
Abstract

Abstract Purpose To assess the association between plasma procalcitonin concentration at hospital admission and the risk of 50-day in-hospital mortality among patients with community-acquired bloodstream infections. Methods We carried out a retrospective, observational cohort study with all consecutive patients with bacteriologically confirmed community-acquired bloodstream infections hospitalized between 2006 and 2012. We aimed to assess the association between plasma procalcitonin at admission and 50-day in-hospital mortality. Patients were included in the analysis if they had undergone a blood culture test within 48 hours of hospitalization with a concomitant procalcitonin assay (time 4.24 ng/mL. A baseline procalcitonin > 4.24 ng/mL was independently associated with an increased risk of in-hospital mortality (multivariable logistic regression: odds ratio, 2.58; 95% CI, 1.57–4.25; P = 0.0002; Cox proportional hazard regression: hazard ratio, 2.01; 95% CI, 1.30–3.11; P = 0.002). In sensitivity analyses, baseline procalcitonin quartiles were independently associated with 50-day in-hospital mortality (multivariable logistic regression: odds ratio, 1.47; 95% CI, 1.17–1.85; P = 0.001; Cox proportional hazard regression: hazard ratio, 1.31; 95% CI, 1.07–1.60; P = 0.008). The independent associations between baseline procalcitonin and the risk of 50-day in-hospital mortality were maintained after adjusting for C-reactive protein and sepsis status at admission. Conclusion Our data provide the first evidence of the usefulness of plasma procalcitonin at admission as a risk-stratifying biomarker for predicting 50-day in-hospital mortality among patients with community-acquired bloodstream infections.

Published
2023
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6. Evaluating antibiotic stewardship and healthcare-associated infections surveillance assisted by computer: protocol for an interrupted time series study

Author

Céline Pulcini, Nathalie Thilly, Nelly Agrinier, Béatrice Demoré, Nejla Aissa, Alain Lozniewski, Alexandre Charmillon, Alexandre Baudet, Julie Lizon, and Arnaud Florentin

Subjects
Medicine
Abstract

Introduction Antibiotic resistance is one of the most pressing health threats that mankind faces now and in the coming decades. Antibiotic resistance leads to longer hospital stays, higher medical costs and increased mortality. In order to tackle antibiotic resistance, we will implement in our tertiary care university hospital a computerised-decision support system (CDSS) facilitating antibiotic stewardship and an electronic surveillance software (ESS) facilitating infection prevention and control activities. We describe the protocol to evaluate the impact of the CDSS/ESS combination in adult inpatients.Methods and analysis We conduct a pragmatic, prospective, single-centre, before–after uncontrolled study with an interrupted time-series analysis 12 months before and 12 months after the introduction of the CDSS for antibiotic stewardship (APSS) and ESS for infection surveillance (ZINC). APSS and ZINC will assist, respectively, the antibiotic stewardship and the infection prevention and control teams of Nancy University Hospital (France). We will evaluate the impact of the CDSS/ESS on the antibiotic use in adult (≥18 years) inpatients (hospitalised ≥48 hours). The primary outcome is the prescription rate by all healthcare professionals from the hospital of all systemic antibiotics expressed in defined daily doses/1000 patients/month. Concurrently, we will assess the safety of the intervention, its impact on the appropriateness of antibiotic prescriptions and on additional precautions (isolation precautions) as recommended in guidelines, and on bacterial epidemiology (multidrug-resistant bacteria and Clostridioides difficile infections) in the hospital. Finally, we will evaluate the users’ satisfaction and the cost of this intervention from the hospital perspective.Ethics and dissemination The protocol has been approved by the Ethics Committee of Nancy University Hospital and registered on the ClinicalTrials platform. Results will be disseminated through conferences’ presentations and publications in peer-reviewed journals.Trial registration number NCT04976829.

Published
2022
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7. Staphylococcus capitis isolated from bloodstream infections: a nationwide 3-month survey in 38 neonatal intensive care units

Author

Decalonne, Marie, Dos Santos, Sandra, Gimenes, Rémi, Goube, Florent, Abadie, Géraldine, Aberrane, Saïd, Ambrogi, Vanina, Baron, Raoul, Barthelemy, Patrick, Bauvin, Isabelle, Belmonte, Olivier, Benabid, Emilie, Ammar, Rafik Ben, Yahia, Salma Ben Hadj, Berrouane, Yasmina, Berthelot, Philippe, Beuchee, Alain, Bille, Emmanuelle, Bolot, Pascal, Bordes-Couecou, Stéphanie, Bouissou, Antoine, Bourdon, Sandra, Bourgeois-Nicolaos, Nadège, Boyer, Sophie, Cattoen, Christian, Cattoir, Vincent, Chaplain, Chantal, Chatelet, Céline, Claudinon, Aurore, Chautemps, Nathalie, Cormier, Hélène, Coroller-Bec, Céline, Cotte, Benjamin, De Chillaz, Carole, Dauwalder, Olivier, Davy, Aude, Delorme, Martine, Demasure, Maryvonne, Desfrere, Luc, Drancourt, Michel, Dupin, Clarisse, Faraut-Derouin, Véronique, Florentin, Arnaud, Forget, Virginie, Fortineau, Nicolas, Foucan, Tania, Frange, Pierre, Gambarotto, Karine, Gascoin, Géraldine, Gibert, Laure, Gilquin, Jacques, Glanard, Audrey, Grando, Jacqueline, Gravet, Alain, Guinard, Jérôme, Hery-Arnaud, Geneviève, Huart, Claire, Idri, Nadia, Jellimann, Jean-Marc, Join-Lambert, Olivier, Joron, Sylvie, Jouvencel, Philippe, Kempf, Marie, Ketterer-Martinon, Sophie, Khecharem, Mouna, Klosowski, Serge, Labbe, Franck, Lacazette, Adeline, Lapeyre, Fabrice, Larche, Jérôme, Larroude, Peggy, Le Pourhiennec, Anne, Le Sache, Nolwenn, Ledru, Sylvie, Lefebvre, Annick, Legeay, Clément, Lemann, Florence, Lesteven, Claire, Levast-Raffin, Marion, Leyssene, David, Ligi, Isabelle, Lozniewski, Alain, Lureau, Pierre, Mallaval, Franck-Olivier, Malpote, Edith, Marret, Stéphane, Martres, Pascale, Menard, Guillaume, Menvielle, Laura, Mereghetti, Laurent, Merle, Véronique, Minery, Pascale, Morange, Virginie, Mourdie, Julien, Muggeo, Anaelle, Nakhleh, Jean, Noulard, Marie-Noëlle, Olive, Claude, Patural, Hugues, Penn, Pascale, Petitfrere, Manuel, Pozetto, Bruno, Riviere, Brigitte, Robine, Audrey, Ceschin, Christine Roques, Ruimy, Raymond, Siali, Amine, Soive, Stéphanie, Slimani, Souad, Trentesaux, Anne-Sophie, Trivier, Dominique, Vandenbussche, Christian, Villeneuve, Laurent, Werner, Evelyne, Le Vu, Stéphane, and Van Der Mee-Marquet, Nathalie

Published
2020
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13. Impact of selective reporting of antibiotic susceptibility testing results for urinary tract infections in the outpatient setting: a prospective controlled before-after intervention study

Author

Simon, Maïa, primary, Fougnot, Sébastien, additional, De Monchy, Patrice, additional, Duda, Alain, additional, Thilly, Nathalie, additional, Pulcini, Céline, additional, Bocquier, Aurélie, additional, Charmillon, Alexandre, additional, Chopard, Virginie, additional, Delpuech, Marion, additional, Fagot-Campagna, Anne, additional, Kivits, Joëlle, additional, Le Dref, Gaëlle, additional, Lozniewski, Alain, additional, Luc, Amandine, additional, Mauffrey, Violaine, additional, Rabaud, Christian, additional, and Varon, Emmanuelle, additional

Published
2023
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14. Scale-Up of Academic Mesenchymal Stromal Cell Production

Author

Laroye, Caroline, primary, Gauthier, Mélanie, additional, Morello, Jessica, additional, Charif, Naceur, additional, Cannard, Véronique Latger, additional, Bonnet, Céline, additional, Lozniewski, Alain, additional, Tchirkov, Andrei, additional, De Isla, Natalia, additional, Decot, Véronique, additional, Reppel, Loïc, additional, and Bensoussan, Danièle, additional

Published
2023
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15. Flavonifractor

Author

Alauzet, Corentine, primary, Lozniewski, Alain, additional, and Cailliez‐Grimal, Catherine, additional

Published
2023
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16. Clinical features and prognostic factors of listeriosis: the MONALISA national prospective cohort study

Author

Hausfater, Pierre, Pourriat, Jean-Louis, Casalino, Enrique, Riou, Bruno, Pateron, Dominique, Yéni, Patrick, Bricaire, François, Ville, Yves, Azria, Elie, Dommergues, Marc, Bergmann, Jean-François, Wolff, Michel, Mira, Jean-Paul, Guillevin, Loïc, Zuber, Mathieu, Abasse, Soumeth, Aberrane, Saïd, Abgueguen, Pierre, Abokasem, Ayman, Abraham, Bruno, Ache-Papillon, Chantal, Adam, Pascal, Adam, Marie-Noëlle, Adhoute, Xavier, Adoue, Daniel, Afi, Moncef, Afroukh, Nawel, Agha-Mir, Ilhem, Aissa, Nejla, Aissaoui, Liamine, Akerman, Grégory, Akkari, Ali, Al Chaar, Majed, Al Freijat, Faraj, Al-Jalaby, Bachar, Albert, Didier, Albertini, Marie-Thérèse, Albinet, Hélène, Alfonsi, Gwenaël, Ali, Youssef, Chaouche, Zahr-Eddine Ali, Allart, Anne, Alric, Laurent, Améri, Alain, Amoura, Zahir, Ampère, Alexandre, Amroun, Hakim, Ananivi, Amévi, Ancelin, Pascal, André, Thierry, Andremont, Antoine, Andreotti, Dominique, Andriamaneo, Hélinoro, Andriau, Clara, Anglaret, Hélène, Anguel, Nadia, Annaix, Véronique, Anteur, Wassila, Anuset, Delphine, Aoudia, Ourida, Arabi, Miloud, Archambaud, Muriel, Archambaud, Maryse, Ardiet, Emmanuel, Argaud, Laurent, Arista, Sophie, Arlet, Guillaume, Armengaud, Jean, Arnal, Jean-Michel, Arnault, Isabelle, Arsène, Olivier, Assaf, Ziad, Assi, Assi, Assouline, David, Astruc, Dominique, Aubard, Yves, Aubert, Claude, Aubry, Jean-Paul, Auburtin, Marc, Aucher, Philippe, Audeguy, Philippe, Audié, Jean-Pierre, Aumaitre, Hugues, Aumersier, Michel, Auroux, Jean, Autret, Fanny, Auvray, Etienne, Ayach, Badih, Aye, Paul, Ayouz, Khélifa, Bachelier, Marie-Nadège, Badia, Thomas Bachelot Philippe, Badila, Patrice, Bador, Julien, Badurescu, Viorica, Baldesi, Olivier, Bandaly, Françoise, Bandin, Olivia, Bani-Sadr, Firouzé, Bannier, Stéphanie, Baranger, Thierry, Barazer, Isabelle, Barbier, Marie-Christine, Barbier, François, Barbier, Carole, Barbieux, Marianne, Marie, Barboteau, Annick, Barbut, Patricia, Baret, Mylène, Barière, François, Baril, Jean-Yves, Barillot, Isabelle, Barjon, Geneviève, Barnaud, Guilène, Barraduc, Régine, Barraud, Francis, Barraud, Olivier, Barre, Eric, Barrelet, Audrey, Barrier, Jocelyn, Bart, Fréderic, Barthélémy, Gérard, Baty, Gaëlle, Baud, Olivier, Baudel, Jean-Luc, Bay, Jacques-Olivier, Bay, Jérôme, Bazin, Claude, Beague, Sébastien, Beal Ardisson, Dominique, Beaune, Bertrand, Beauplet-Lepage, Anne, Bébéar, Cécile, Bechade, Dominique, Becherrawy, Céline, Becker-Schneider, Michelle, Bednarek, Nathalie, Bedock, Bernard, Begon, Edouard, Bekguesmia, Zaineb, Belaisch-Amart, Joëlle, Belhadj, Karim, Belle, Evelyne, Belmonte, Olivier, Belot, Jean-Pierre, Bemrah, Abdelkader, Ben Soltana, Mouna, Benbara, Amélie, Benddif-Fin, Faiza, Bénézit, François, Benifla, Jean-Louis, Benjelloul, Amine, Benkaci, Yacine, Benkhelil, Abdelaziz, Benoit-Cattin, Thierry, Benoit-Coustou, Sophie, Bensadoun, René-Jean, Bensaid, Thierry, Jacques Bensaude, Raoul, Bérard, Henri, Bercot, Béatrice, Berdin, Bruno, Berger, Marc, Berger, Pierre, Bergheul, Smail, Bergues, Benoît, Berland, Yvon, Bernard, Claude, Bernard, Louis, Bernardaud, Bérangère, Bernardi, Franck, Bernardin, Gilles, Bernasconi, François, Bert-Marcaz, Patrick, Berteaux, Béatrice, Berth-Farges, Anne, Berthelot, Gilles, Berthet, Jean, Bertrand, Kevin, Bertrou, Anne, Besnard, Marianne, Bessede, Emilie, Bethery, Philippe, Beuscart, Claude, Beyne-Rauzy, Odile, Beytout, Jean, Bezian, Marie-Christine, Bicais, Brigitte, Bidart, Sabine, Bidault, Christian, Biessy, Hélène, Bigot, Pierre, Bildea, Adrianna, Bille, Emmanuelle, Billy, Christophe, Biron, Nathalie, Bizet, Jérôme, Blaise, Didier, Blaise, Agathe, Blaison, Gilles, Blaka, Mariam, Blanc, Pierre, Blanc, Stéphane, Blanc-Amrane, Véronique, Blanchard, Pierre, Blanchard-Marche, Geneviève, Blancs, Michèle, Blazejewski, Caroline, Bléher, Yves, Blewoussi, Koffi, Blondet, Romain, Blot, François, Blum, Georges-Fabrice, Bodson, Lucien, Boidin, Emilie, Boileau, Julien, Boileau, Pascal, Boin-Gay, Véronique, Boisseau, Martial, Boisselier, Christine, Bollaert, Pierre-Edouard, Bolot, Pascal, Bonacorsi, Stéphane, Bonfils, Marie, Bonitchi, Pascal, Bonnan, Mickael, Bonnefoy, Philippe, Bonnet, Delphine, Bonnet, Richard, Bonnin, Emmanuelle, Bor, Jacques, Borie, Marie-Françoise, Borstein, Bernard, Bossi, Philippe, Botreau, Yves, Bottero, Julie, Bouasria, Abderrezak, Bouaziz, Radia, Bouchaud, Olivier, Bouche, Flore, Bouchet, Gérard, Bouden, Vincent, Boudhane, Amar, Boudy, Carole-Anne, Boue, François, Bouet, Cédric, Claude Boufetteau, Jean, Bouffandeau, Bernard, Bouhour, Damien, Bouiller, Marc, Bouillet, Laurence, Bouissou, Antoine, Boulain, Luc, Bourgeois, Stéphane, Bourgerette, Evelyne, Bourlet, Anne, Bourlière, Marc, Bourrée, Thomas, Bourrouillou, Aude, Boussekey, Nicolas, Boussier, Remi, Boutoille, David, Bouyer, Jean-Luc, Bouyssou-Destriau, Denise, Bouziges, Nicole, Boyer, Michelle, Braem, Louis, Branger, Bernard, Branger, Catherine, Brasme, Lucien, Bray, Philippe, Brazille, Patricia, Bresson, Violaine, Bret, Laurent, Breton, Anne-Laure, Breuil, Jacques, Brevet, Françoise, Briaud, Michel, Bridoux, Delphine, Briend, Delphine, Briere, Anne-Isabelle, de la Hosseraye, Claire Briere, Brieu, Nathalie, Brieux, Jean-Philippe, Brihier, Hélène, Brisou, Patrick, Brival, Marie-Laure, Broche, David, Brochen, Joëlle, Bron, Camille, Bronet, Nathalie, Bronner, Jacques, Bronowicki, Jean-Pierre, Brosset, François, Brottier-Mancini, Elisabeth, Brovedani, Sophie, Bruley des Varannes, Stanislas, Brunel, Pascale, Brunet, Patrick, Brunet, Xavier, Brunet, Stéphanie, Brung-Lefebvre, Maud, Brunot, Vincent, Brusset, Alain, Burc-Struxiano, Laurence, Burdin, Michèle, Bureau, Thierry, Buron, Fanny, Burucoa, Christophe, Cabalion, Jean, Cabasson, Severine, Cabié, André, Cacheux, Victoria, Cadiergue, Vincent, Cadiot, Guillaume, Caille, Vincent, Cailleaux Pierre-Etienne Cailleux, Vincent, Caillon, Jocelyne, Caillot, Denis, Camara, Mohamed, Cambau, Emmanuelle, Cambonie, Gilles, Camiade, Sabine, Canis, Frederique, Canitrot, Meriem, Canu, Nathalie, Capellier, Gilles, Carbillon, Lionel, Carbonelle, Bernard, Carbonelle, Etienne, Carboni, Marion, Carbonne, Bruno, Carcenac, Francis, Cardot, Florence, Carette, Sylvie, Cariou, Sylvie, Carli, Pierre, Carmagnol, Françoise, Caroli-Bosc, François-Xavier, Caron, François, Cartron, Guillaume, Casali, Patrick, Casanovas, Olivier, Cassignard, Dominique, Castaing, Denis, Castel, Brisse, Castelin, Sandrine, Castelnau, Pierre, Cathebras, Pascal, Catineau, Jean, Catteu, Sylviane, Cattier, Blandine, Cattoen, Christian, Cattoir, Vincent, Caumes, Eric, Caussin, Jean, Cavalié, François, Ceppa, Franck, Cerf, Charles, Ceriez, Anne, Cervantes, Nathalie, Chabanon-Pouget, Bruno, Chabrol, Amélie, Chachaty, Elisabeth, Chahtour, Hanen, Chaix, Fabrice, Challier, Marion, Chalvon-Demersay, Arnaud, Chambreuil, Guy, Chaminade, Bruno, Chamouine, Abdourahim, Chandesris Joséphine Chapalain-Cagnon, Christine, Chapelle, Alain, Chaplain, Chantal, Chapuzet, Claire, Charachon, Sylvie, Charasse, Christophe, Charbonnier, Thierry, Charlier, Franck, Chassin, Olivier, Chassy, Véronique, Chatellier, Delphine, Chatron, Marlène, Chaussade, Hélène, Chavanet, Pascal, Chavel, Pascale, Chekroun, Ali, Chelle, Wladimir, Chelly, Jonathan, Cherlet, Christel, Chevailler, Alain, Chevalet, Pascal, Chevalier, Yannick, Chidiac, Christian, Chimot, Loïc, Chiouk, Nabil, Chiron, Philippe, Chirouze, Catherine, Chopin, Marie-Charlotte, Choukroun, Gabriel, Chouraqui, Martine, Chraibi, Kamilla, Chudersky, Dominique, Chuzeville, Michel, Cingotti, Michel, Cinquetti, Gael, Ciocan, Dragos, Citony, Isabelle, Claise, Catherine, Clarissou-Philippe, Juliette, Claude, Benoît, Clave, Danielle, Clément, Christophe, Climas, Marie-Thérèse, Coetmeur, Daniel, Cognet, Stéphanie, Cohen, Daniel, Coignard, Sophie, Coindre, Jean-Philippe, Coint, Raphaël, Colamarino, Renato, Colingorski, Anne-Marie, Collard, Olivier, Collet, Michel, Collignon, Anne, Collus, Marie-José, Colombani, Jean-Claude, Colombat, Philippe, Combe, Christian, Condominas, Philippe, Conroy, Marie-Chrsitine, Constans, Thierry, Constantin, Nicole, Contamin, Claudine, Corberand, Damien, Cordier, Anne-Marie, Cordonnier, Charlotte, Corneloup, Hélène, Costa, Yannick, Costa, Frédérique, Coste, Mathieu, Costes, Corinne, Cotes, Françoise, Cotteret, Rabea, Couderc, Louis-Jean, Cougoul, Pierre, Coulaud, Jean-Michel, Coulhon, Marie-Pierre, Coulon, Patrice, Courcol, René, Courillon, Florence, Courjon, Johan, Courouble, Jérémie, Courouge-Dorcier, Dominique, Courtade, Henri, Courtois, Stéphanie, Couturier, Pascal, Créange, Alain, Cremet, Lise, Cremniter, Julie, Croize, Jacques, Crombe, Valérie, Croquet, Ingrid, Cua, Eric, Cufi, Marie-Noelle, Cuvillier, Patrice, Dabysing, Marie-Françoise, Dadoun, Karim, Dagada, Corinne, Dahan, Sonia, Dahoumane, Redouane, Daleas, Jacques, Dallay, Dominique, Dalle, Benoît, Damage, Alexandre, Damaj, Lena, Damaj Gandhi, Laurent, Danalaché, Ana, Danin, Pierre-Eric, Danjean, Marie-Pierre, Danquechin Dorval, Etienne, Dao, Anne, Daoud, Patrick, Darchen, Olivier, Dargère, Sylvie, Darre, Bincy, Dassant, Damien, Dassieu, Gilles, Dattin-Dorrière, Valérie, Daupin, Cedric, Daurel, Claire, Dausset, Jean-Claude, Daval Cote, Mélanie, David, Gary, Davido, Benjamin, De Barbeyrac, Bertille, De Biasi, Michel, De Boysson, Hubert, De Clareuil, Edith, De Kermadec, Jean-Michel, De Martino, Sylvie, De Tayrac, Renaud, De Varax, Roland, De Witte, Sten, Debernardi, Anne, Deboutin, Jean-Luc, Debouverie, Marc, Decoene, Christophe, Decoster, Anne, Decousser, Jean-Winoc, Decré, Dominique, Defebvre, Renaud, Degand, Nicolas, Degreff, Jean-Marc, Deiber, Michel, Delaby, Hélène, Delacour, Thierry, Delahaye, Arnaud, Delarbre, Jean-Marie, Delasalle, Chantal, Delbrouck, Claire, Delecalle, Jean-Gilles, Delesalle, Sophie, Delesalle, Chantal, Delhoustal, Laurence, Deligne, Delphine, Delisle Mizon, Françoise, Delobel, Pierre, Delour, Pierre, Delpeuch, Bruno, Demachy, Marie-Claude, Demarchi, Martin, Demarcq, Marie-Joelle, Demontclos, Henri, Dengo, Jean-Christophe, Deprecq, Sophie, Dequin, Pierre-François, Dereeper, Olivier, Deroux, Alban, Derragui, Aicha, Desblache, Julien, Desbois-Nogard, Nicole, Descamps, Dominique, Descamps, Jean-Michel, Deschamps, Christophe, Deschamps, Jacques, Desemerie, Franck, Desfrere, Luc, Desliers, Joelle, Desnoulez, Laurence, Desplaces, Nicole, Després, Nicolas, Dessin, Jean-François, Destors, Marie, Detante, Olivier, Detave, Mathieu, Detourmignies, Laurence, Devaud, Edouard, Devaux, Yves, Devaux, Bruno, Devianne, François, Devidas, Alain, Devos, Philippe, Dewitte, Camille, Dewulf, Gisèle, Dhennain, Chantal, Di Meglio, Chloé, Diallo, Habiboulaye, Diamantis, Sylvain, Dib, Baihas, Didier, Jean-Marc, Dillies, Anne-Françoise, Dingremont, Claire, Djafari, Noureddine, Djeffal, Abdelmajid, Djerad, Hama, Dollon, Christophe, Doloy, Alexandra, Domart, Yves, Donay, Jean-Luc, Dopeux, Loïc, Dorr, Gaelle, Doucet Populaire, Florence, Dournon, Nathalie, Dreyfus, Michel, Dreyfuss, Didier, Du Cheyron, Damien, Dubois, Elodie, Dubois, Nicolas, Dubosc-Marchenay, Nadine, Dubourdieu, Béatrice, Dubroca, Nadine, Dubus, Jean-Christophe, Duche, Catherine, Duchene, Francis, Dudeffant, Patrick, Duez, Jean-Marie, Duhaut, Pierre, Duluc, Françoise, Dumouchel, Hélène, Dumoulard, Bruno, Dupin, Clarisse, Dupon, Michel, Dupont, Mathieu, Dupont, Damien, Dupont, Patrick, Dupre-Narlet, Emmanuelle, Dupretz, Peggy, Dupuy, Claire-Antoinette, Durand, Michel, Durand, Annie, Durliat-Ellie, Solène, Durox, Hélène, Dussopt, Christine, Dutasta, Fabien, Duval, Véronique, Dzeing, Ella, Eboue, Florence, Ede, Cyrille, Eid, Hanna, El Yamani, Abderrazak, Elbez, Annie, Eldeghedy, Mohamed, Elena-Daumas, Martine, Elhadad, Simon, Elharie-Heraux, Zoubida, Eloy, Clarence, Emeriau, Marie-Etiennette, Emond, Jean-Philippe, Equy, Véronique, Erena-Penet, Anne-Sophie, Esnault, Cecilia, Esposito, Laure, Essouri, Sandrine, Estépa, Laurence, Estève, Vincent, Etchemendy, Sabine, Ettahar, Nicolas, Eustache, Marie-Line, Evillard, Mathieu, Evreux, Françoise, Eychene, Jean-Marc, Eyer, Didier, Eymerit, Philippe, Fabre, Jean-Luc, Fabre, Claire, Faibis, Frédéric, Falchero, Lionel, Falguières, Odile, Fallouh, Hassan, Fanjaud, Nicolas, Fantin, Bruno, Farah, Ibrahim, Farto-Bensasson, Fernanda, Fauchais, Anne-Laure, Fauchart, Jean-Pierre, Faucher, Anna, Faucheux, Jean-Marc, Faudon-Gibelin, Anne, Faurie, Pierre, Fèbre, Claudine, Feddal, Toufik, Ferhat Carre, Assia, Ferreira-Maident, Nicole, Ferreyra, Milagros, Ferroni, Agnès, Ferry, Tristan, Feugier, Pierre, Feugier, Jean-Claude, Fezoui, Hacene, Fiette, Hélène, Fille, Alexandra, Filloux, Jean-Michel, Fily, Fabien, Fines, Marguerite, Fissore Magdelein, Cristel, Flahault, Mathilde, Floriot, Christian, Foguem, Clovis, Fonsale, Nathalie, Fontenel, Benoît, Forest, Anne-Marie, Forest, Anne, Forestier, Emmanuel, Fortin, Louise, Fortineau, Nicolas, Fos, Marie-Pierre, Foucart, Saskia, Fouilhoux, Alain-Charles, Fournel, Pierre, Fournier, Damien, Fourrier, François, Fraisse, Thibaut, Fredenucci, Isabelle, Fremin-Batteux, Odile, Frey, Janine, Frimat, Luc, Froidure, Marie, Fruchart, Christophe, Fruleux, Nathalie, Fuhrmann, Christine, Fuillet, Michel, Funakoshi, Nathalie, Fur, Alain, Gabez-Therou, Patricia, Gaborieau, Valerie, Gabriel-Soléan, Sylvie, Gachassin, Laurence, Gaide, Jean-François, Gaillard, Julia, Gaillard, Jean-Louis, Gaillart, Tiphaine, Gaizi, Sad, Gallo, Nicolas, Gameiro, Manuel-Luis, Garandeau, Caroline, Garbi, Aurelie, Garcera, Yves, Gardes, Ghislaine, Garesslin, Olivier, Garnier, Fabien, Garofano, Marie, Garosi, Olivier, Garre, Michel, Garrec, Hélène, Garrigues, Bernard, Gaschet, Anne, Gascon, Alexandre, Gascou, Emmanuel, Gasnault, Jacques, Gatfosse, Marc, Gattault, Jean-François, Gatti, Hélène, Gauche, Bernard, Gaudard, Philippe, Gaudelus, Joel, Gaudry, Stéphane, Gauduchon, Valérie, Gaulthier, Jean-Baptiste, Gauthier, Yvan, Gebeile, Rémi, Geffray, Loïc, Geffroy, Françoise, Geissler, Alain, Gelez, Maud, Gendrin, Vincent, Gengembre, Guy, Gentilhomme, Hervé, 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Emmanuelle, Lavenu, Isabelle, Lavigne, Jean-Philippe, Le Baron, François, Le Berre, Rozenn, Le Berruyer, Pierre-Yves, Le Bideau, Marc, Le Boterff, Cécile, Le Chevallier, Sylvain, Le Coustumier, Alain, Le Du, Anne, Le Goff, Valérie, Le Henaff, Catherine, Le Lay, Geneviève, Le Maout, Gilles, Le Pierres, Athéna, Le Pimpec, Patricia, Le Poulain, Marguerite, Le Reste, Anne-Marie, Le Sec, Ludovic, Le Turdu, Françoise, Leautez-Nainville, Sophie, Lebas, Eddy, Leblond, Véronique, Lebreton, Marie-Annick, Lebreton, Didier, Lecaillon-Thibon, Evelyne, Lechat, Sylvie, Lechiche, Catherine, Lecis, Alain, Leclercq, Roland, Lecomte, Claire, Lécuyer, Hervé, Ledru, Sylvie, Leduc, Dominique, Leflon, Véronique, Lefort, Christine, Lefranc, Hélène, Lefrant, Jean-Yves, Legendre, Christophe, Legoff, Isabelle, Legout, Laurence, Legrand, Mathieu, Legras, Annick, Legros, Antoine, Leguen, Virginie, Leibinger, Franck, Lelièvre, Jean-Daniel, Lellouche, Franck, Lemaignen, Adrien, Lemarie, Romain, Lemble, Chantal, 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Published
2017
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18. Scale-Up of Academic Mesenchymal Stromal Cell Production

Author

Bensoussan, Caroline Laroye, Mélanie Gauthier, Jessica Morello, Naceur Charif, Véronique Latger Cannard, Céline Bonnet, Alain Lozniewski, Andrei Tchirkov, Natalia De Isla, Véronique Decot, Loïc Reppel, and Danièle

Subjects
mesenchymal stem cells, Wharton’s jelly, scale-up
Abstract

Background: Many clinical trials have reported the use of mesenchymal stromal cells (MSCs) following the indication of severe SARS-CoV-2 infection. However, in the COVID19 pandemic context, academic laboratories had to adapt a production process to obtain MSCs in a very short time. Production processes, especially freezing/thawing cycles, or culture medium have impacts on MSC properties. We evaluated the impact of an intermediate cryopreservation state during MSC culture to increase production yields. Methods: Seven Wharton’s jelly (WJ)-MSC batches generated from seven different umbilical cords with only one cryopreservation step and 13 WJ-MSC batches produced with intermediate freezing were formed according to good manufacturing practices. The identity (phenotype and clonogenic capacities), safety (karyotype, telomerase activity, sterility, and donor qualification), and functionality (viability, mixed lymphocyte reaction) were analyzed. Results: No significant differences between MSC production processes were observed, except for the clonogenic capacity, which was decreased, although it always remained above our specifications. Conclusions: Intermediate cryopreservation allows an increase in the production yield and has little impact on the basic characteristics of MSCs.

Published
2023
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19. Clostridium haemolyticum Infection: A Cause of Hemolytic Anemia in a Patient with Bone Marrow Necrosis

Author

Anne Sophie Lagneaux, Sandrine Hénard, Laure Diancourt, Emmanuelle Stein, Pierre Perez, Pierre Mathieu, Corentine Alauzet, and Alain Lozniewski

Subjects
Clostridium haemolyticum, hemolytic anemia, bone marrow necrosis, human infection, Biology (General), QH301-705.5
Abstract

Clostridium haemolyticum is a sporulating Gram-positive anaerobic rod that is considered to be one of the most fastidious and oxygen-sensitive anaerobes. It is a well-known animal pathogen and the cause of bacillary hemoglobinuria primarily in cattle. To date, human infections caused by C. haemolyticum have been reported in three patients with malignant underlying diseases. We present herein the case of a 30-year-old obese woman with no significant past medical history who developed bacteremia caused by C. haemolyticum with massive intravascular hemolysis associated with bone marrow necrosis and acute renal failure. Because of subculture failure, the diagnosis was made on the basis of 16S rDNA sequencing and next-generation sequencing. The patient, who had been afebrile for 20 days after a 17-day-course of antibiotics, experienced a second bacteremic episode caused by C. haemolyticum. After having been successfully treated for 42 days with clindamycin and amoxicillin-clavulanic acid, the patient developed acute myeloid leukemia as a result of bone marrow regeneration. Although uncommon in humans, infections caused by C. haemolyticum are severe and should be considered in a febrile patient who has severe hemolytic anemia. This case also highlights the importance of using molecular techniques for the identification of this fastidious anaerobic organism.

Published
2021
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20. Surface Properties of Parabacteroides distasonis and Impacts of Stress-Induced Molecules on Its Surface Adhesion and Biofilm Formation Capacities

Author

Jordan Chamarande, Lisiane Cunat, Céline Caillet, Laurence Mathieu, Jérôme F. L. Duval, Alain Lozniewski, Jean-Pol Frippiat, Corentine Alauzet, and Catherine Cailliez-Grimal

Subjects
Parabacteroides distasonis, stress, gut microbiota, adhesion and biofilm capacities, Biology (General), QH301-705.5
Abstract

The gut microbiota is a complex and dynamic ecosystem whose balance and homeostasis are essential to the host’s well-being and whose composition can be critically affected by various factors, including host stress. Parabacteroides distasonis causes well-known beneficial roles for its host, but is negatively impacted by stress. However, the mechanisms explaining its maintenance in the gut have not yet been explored, in particular its capacities to adhere onto (bio)surfaces, form biofilms and the way its physicochemical surface properties are affected by stressing conditions. In this paper, we reported adhesion and biofilm formation capacities of 14 unrelated strains of P. distasonis using a steam-based washing procedure, and the electrokinetic features of its surface. Results evidenced an important inter-strain variability for all experiments including the response to stress hormones. In fact, stress-induced molecules significantly impact P. distasonis adhesion and biofilm formation capacities in 35% and 23% of assays, respectively. This study not only provides basic data on the adhesion and biofilm formation capacities of P. distasonis to abiotic substrates but also paves the way for further research on how stress-molecules could be implicated in P. distasonis maintenance within the gut microbiota, which is a prerequisite for designing efficient solutions to optimize its survival within gut environment.

Published
2021
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21. A New Look at the Genus Solobacterium: A Retrospective Analysis of Twenty-Seven Cases of Infection Involving S. moorei and a Review of Sequence Databases and the Literature

Author

Corentine Alauzet, Fabien Aujoulat, Alain Lozniewski, Safa Ben Brahim, Chloé Domenjod, Cécilia Enault, Jean-Philippe Lavigne, and Hélène Marchandin

Subjects
Solobacterium moorei, human infections, human microbiota, identification, antimicrobial susceptibility, sequence databases, Biology (General), QH301-705.5
Abstract

Solobacterium moorei is an anaerobic Gram-positive bacillus present within the oral and the intestinal microbiota that has rarely been described in human infections. Besides its role in halitosis and oral infections, S. moorei is considered to be an opportunistic pathogen causing mainly bloodstream and surgical wound infections. We performed a retrospective study of 27 cases of infections involving S. moorei in two French university hospitals between 2006 and 2021 with the aim of increasing our knowledge of this unrecognized opportunistic pathogen. We also reviewed all the data available in the literature and in genetic and metagenomic sequence databases. In addition to previously reported infections, S. moorei had been isolated from various sites and involved in intra-abdominal, osteoarticular, and cerebral infections more rarely or not previously reported. Although mostly involved in polymicrobial infections, in seven cases, it was the only pathogen recovered. Not included in all mass spectrometry databases, its identification can require 16S rRNA gene sequencing. High susceptibility to antibiotics (apart from rifampicin, moxifloxacin, and clindamycin; 91.3%, 11.8%, and 4.3% of resistant strains, respectively) has been noted. Our global search strategy revealed S. moorei to be human-associated, widely distributed in the human microbiota, including the vaginal and skin microbiota, which may be other sources for infection in addition to the oral and gut microbiota.

Published
2021
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22. Rapid bench identification of methicillin-sensitive and methicillin-resistant Staphylococcus aureus: A multicenter comparative evaluation of Alere PBP2a Culture Colony Test (Alere) Versus Slidex MRSA detection (bioMérieux)

Author

Tasse, Jason, Dupieux, Céline, Caillon, Jocelyne, Lanotte, Philippe, Lamy, Brigitte, Aissa, Nejla, Bemer, Pascale, Mereghetti, Laurent, Michon, Anne-Laure, Lozniewski, Alain, Bes, Michèle, Trouillet-Assant, Sophie, and Laurent, Frédéric

Published
2016
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23. Impact of selective reporting of antibiotic susceptibility testing results for urinary tract infections in the outpatient setting: a prospective controlled before-after intervention study

Author

Maïa Simon, Sébastien Fougnot, Patrice De Monchy, Alain Duda, Nathalie Thilly, Céline Pulcini, Aurélie Bocquier, Alexandre Charmillon, Virginie Chopard, Marion Delpuech, Anne Fagot-Campagna, Joëlle Kivits, Gaëlle Le Dref, Alain Lozniewski, Amandine Luc, Violaine Mauffrey, Christian Rabaud, and Emmanuelle Varon

Subjects
Microbiology (medical), Infectious Diseases, General Medicine
Published
2023

24. Additional file 1 of Usefulness of procalcitonin at admission as a risk-stratifying biomarker for 50-day in-hospital mortality among patients with community-acquired bloodstream infection: an observational cohort study

Author

Oussalah, Abderrahim, Callet, Jonas, Manteaux, Anne-Elisabeth, Thilly, Nathalie, Jay, Nicolas, Guéant, Jean-Louis, and Lozniewski, Alain

Abstract

Additional file 1: Supplemental methods. Supplemental Table S1. Probit regression analysis for the propensity score predicted by the logistic regression model as the dose variable and the risk of 50-day in-hospital mortality as the response variable. Supplemental Table 2. Association between plasma procalcitonin level at admission and all-cause 50-day mortality in multivariable logistic regression analysis. Supplemental Table S3. Kaplan-Meier analysis reporting the probability of survival without in-hospital mortality according to the ROC-defined plasma procalcitonin threshold (> 4.24 ng/mL) at baseline. Supplemental Table S4. Hazard ratios and 95% confidence interval for the pairwise comparison of survival probabilities without in-hospital mortality according to the ROC-defined plasma procalcitonin threshold (> 4.24 ng/mL) at baseline. Supplemental Table S5. Association between plasma procalcitonin level at admission and all-cause in-hospital mortality in multivariable Cox proportional-hazards regression. Supplemental Table S6. Distribution of procalcitonin values according to procalcitonin quartiles. Supplemental Table S7. Kaplan-Meier analysis reporting the probability of survival without in-hospital mortality in the 452 studied patients according to baseline plasma procalcitonin quartiles. Supplemental Table S8. Hazard ratios and 95% confidence interval for the pairwise comparison of survival probabilities without in-hospital mortality according to baseline procalcitonin quartiles. Supplemental Figure S1. Flow diagram of patient selection. Supplemental Figure S2. (A) Kaplan-Meier analysis reporting the probability of survival without in-hospital mortality according to the ROC-defined plasma troponin threshold (> 0.05 ng/mL) at baseline; (B) Kaplan-Meier analysis reporting the probability of survival without in-hospital mortality according to the ROC-defined plasma lactates threshold (> 4.24 ng/mL) at baseline. Supplemental Figure S3. Probit sigmoid dose-response curve showing the propensity score predicted by the logistic regression model as the dose variable and the risk of 50-day in-hospital mortality as the response variable. The red line shows the probability and corresponding dose. The dashed curves represent the 95% confidence interval for the respective dose. The dose and 95% confidence interval corresponding with a particular probability are taken from a horizontal line at that probability level. Supplemental Figure S4. (A) Kaplan-Meier ainalysis reporting the probability of survival without in-hospital mortality in the 452 studied patients. The dashed lines represent the 95% confidence interval of the survival probabilities; (B) Kaplan-Meier analysis reporting the probability of survival without in-hospital mortality according to the ROC-defined plasma procalcitonin threshold (> 4.24 ng/mL) at baseline.

Published
2023
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25. Impact of a Model Used to Simulate Chronic Socio-Environmental Stressors Encountered during Spaceflight on Murine Intestinal Microbiota

Author

Corentine Alauzet, Lisiane Cunat, Maxime Wack, Laurence Lanfumey, Christine Legrand-Frossi, Alain Lozniewski, Nelly Agrinier, Catherine Cailliez-Grimal, and Jean-Pol Frippiat

Subjects
gut microbiota, chronic unpredictable mild stress, spaceflight, Barnesiella, Biology (General), QH301-705.5, Chemistry, QD1-999
Abstract

During deep-space travels, crewmembers face various physical and psychosocial stressors that could alter gut microbiota composition. Since it is well known that intestinal dysbiosis is involved in the onset or exacerbation of several disorders, the aim of this study was to evaluate changes in intestinal microbiota in a murine model used to mimic chronic psychosocial stressors encountered during a long-term space mission. We demonstrate that 3 weeks of exposure to this model (called CUMS for Chronic Unpredictable Mild Stress) induce significant change in intracaecal β-diversity characterized by an important increase of the Firmicutes/Bacteroidetes ratio. These alterations are associated with a decrease of Porphyromonadaceae, particularly of the genus Barnesiella, a major member of gut microbiota in mice and humans where it is described as having protective properties. These results raise the question of the impact of stress-induced decrease of beneficial taxa, support recent data deduced from in-flight experimentations and other ground-based models, and emphasize the critical need for further studies exploring the impact of spaceflight on intestinal microbiota in order to propose strategies to countermeasure spaceflight-associated dysbiosis and its consequences on health.

Published
2020
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26. Usefulness of Procalcitonin at Admission as a Risk-Stratifying Biomarker for 50-Day In- Hospital Mortality Among Patients with Community-Acquired Bloodstream Infection: An Observational Cohort Study

Author

Abderrahim Oussalah, Jonas Callet, Anne-Elisabeth Manteaux, Nathalie Thilly, Nicolas Jay, Jean-Louis Guéant, and Alain Lozniewski

Subjects
Biochemistry (medical), Clinical Biochemistry, Molecular Medicine
Abstract

Purpose To assess the association between plasma procalcitonin concentration at hospital admission and the risk of 50-day in-hospital mortality among patients with community-acquired bloodstream infections. Methods We carried out a retrospective, observational cohort study with all consecutive patients with bacteriologically confirmed community-acquired bloodstream infections hospitalized between 2006 and 2012. We aimed to assess the association between plasma procalcitonin at admission and 50-day in-hospital mortality. Patients were included in the analysis if they had undergone a blood culture test within 48 hours of hospitalization with a concomitant procalcitonin assay (time Results During the 7-year study period, 1593 patients were admitted to one of the healthcare facilities of the University Hospital of Nancy from home or through the emergency department and had positive blood cultures and concomitant procalcitonin assays. Among the patients, 452 met the selection criteria and were analyzed. In ROC analysis, procalcitonin at baseline was significantly associated with 50-day in-hospital mortality, with an optimal threshold > 4.24 ng/mL. A baseline procalcitonin > 4.24 ng/mL was independently associated with an increased risk of in-hospital mortality (multivariable logistic regression: odds ratio, 2.58; 95% CI, 1.57–4.25; P = 0.0002; Cox proportional hazard regression: hazard ratio, 2.01; 95% CI, 1.30–3.11; P = 0.002). In sensitivity analyses, baseline procalcitonin quartiles were independently associated with 50-day in-hospital mortality (multivariable logistic regression: odds ratio, 1.47; 95% CI, 1.17–1.85; P = 0.001; Cox proportional hazard regression: hazard ratio, 1.31; 95% CI, 1.07–1.60; P = 0.008). The independent associations between baseline procalcitonin and the risk of 50-day in-hospital mortality were maintained after adjusting for C-reactive protein and sepsis status at admission. Conclusion Our data provide the first evidence of the usefulness of plasma procalcitonin at admission as a risk-stratifying biomarker for predicting 50-day in-hospital mortality among patients with community-acquired bloodstream infections.

Published
2022

28. An upgraded version of carbapenem inactivation method to detect Bacteroides fragilis carbapenemase

Author

Nathan Nicolau-Guillaumet, Anaëlle Muggeo, Sophie Moussalih, Christophe de Champs, Alain Lozniewski, Corentine Alauzet, and Thomas Guillard

Subjects
Microbiology (medical), Infectious Diseases, General Medicine
Abstract

An increase of carbapenemase-producing Bacteroides fragilis infections is observed. To detect such a resistance in B. fragilis, several tests exist that are expensive or show poor sensitivity and specificity. Therefore, we upgraded the Anaerobic Carbapenem Inactivation Method (Ana-CIM) to easily screen for carbapenemase-producing B. fragilis. The presence of carbapenemase cfiA gene was identified in 50 B. fragilis isolates by PCR. We modified the Ana-CIM by (1) increasing the bacterial inoculum, and (2) measuring the differences in diameter between the negative control and the testing disc. We correctly classified the cfiA-negative and positive isolates and could define a cut-off of positivity at 2 mm. Our modified Ana-CIM allowed to correctly discriminate the 31 cfiA-positive with meropenem MICs ranging from 1 to32 µg/mL. We anticipate that our modified Ana-CIM could be used in most clinical laboratories to easily screen for carbapenemase-producing B. fragilis, even at low levels.

Published
2022

29. Ascitic fluid mid-regional-pro-adrenomedullin (MR-pro-ADM): a novel rapid-assay sepsis biomarker to diagnose spontaneous bacterial peritonitis in cirrhotic patients

Author

Oussalah, Abderrahim, primary, Lagneaux, Anne-Sophie, additional, Alix, Tom, additional, Filhine-Tresarrieu, Pierre, additional, Callet, Jonas, additional, Ferrand, Janina, additional, Jung, Jean, additional, Broseus, Julien, additional, Salignac, Sylvain, additional, Luc, Amandine, additional, Baumann, Cédric, additional, Schuetz, Philipp, additional, Lozniewski, Alain, additional, Peoch, Katell, additional, Puy, Hervé, additional, Guéant, Jean-Louis, additional, and Bronowicki, Jean-Pierre, additional

Published
2022
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31. Bacterial infection in compensated viral cirrhosis impairs 5-year survival (ANRS CO12 CirVir prospective cohort)

Author

Nahon, Pierre, Lescat, Mathilde, Layese, Richard, Bourcier, Valérie, Talmat, Nabila, Allam, Setty, Marcellin, Patrick, Guyader, Dominique, Pol, Stanislas, Larrey, Dominique, De Lédinghen, Victor, Ouzan, Denis, Zoulim, Fabien, Roulot, Dominique, Tran, Albert, Bronowicki, Jean-Pierre, Zarski, Jean-Pierre, Goria, Odile, Calès, Paul, Péron, Jean-Marie, Alric, Laurent, Bourlière, Marc, Mathurin, Philippe, Blanc, Jean-Frédéric, Abergel, Armand, Serfaty, Lawrence, Mallat, Ariane, Grangé, Jean-Didier, Attali, Pierre, Bacq, Yannick, Wartelle, Claire, Dao, Thông, Benhamou, Yves, Pilette, Christophe, Silvain, Christine, Christidis, Christos, Capron, Dominique, Bernard-Chabert, Brigitte, Hillaire, Sophie, Di Martino, Vincent, Trinchet, Jean-Claude, Moreau, Richard, Roudot-Thoraval, Françoise, Kempf, Marie, Bert, Fréderic, Doloy, Alexandra, Poilane, Isabelle, Peuchant, Olivia, Carbonnelle, Etienne, Picard, Bertrand, Burucoa, Christophe, Cattoir, Vincent, Decré, Dominique, Degand, Nicolas, Dortet, Laurent, Kayal, Samer, Vernet-Garnier, Véronique, Lozniewski, Alain, Tuaillon, Edouard, Vimont, Sophie, Bessède, Emilie, Patry, Isabelle, Lemaitre, Nadine, and Pachetii, Christine

Published
2017
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33. Evaluating antibiotic stewardship and healthcare-associated infections surveillance assisted by computer: protocol for an interrupted time series study

Author

Baudet, Alexandre, primary, Agrinier, Nelly, additional, Charmillon, Alexandre, additional, Pulcini, Céline, additional, Lozniewski, Alain, additional, Aissa, Nejla, additional, Lizon, Julie, additional, Thilly, Nathalie, additional, Demoré, Béatrice, additional, and Florentin, Arnaud, additional

Published
2022
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34. Ascitic fluid mid-regional-pro-adrenomedullin (MR-pro-ADM): a novel rapid-assay sepsis biomarker to diagnose spontaneous bacterial peritonitis in cirrhotic patients

Author

Abderrahim Oussalah, Anne-Sophie Lagneaux, Tom Alix, Pierre Filhine-Tresarrieu, Jonas Callet, Janina Ferrand, Jean Jung, Julien Broseus, Sylvain Salignac, Amandine Luc, Cédric Baumann, Philipp Schuetz, Alain Lozniewski, Katell Peoch, Hervé Puy, Jean-Louis Guéant, and Jean-Pierre Bronowicki

Subjects
Hepatology
Published
2022

38. Surface Properties of Parabacteroides distasonis and Impacts of Stress-Induced Molecules on Its Surface Adhesion and Biofilm Formation Capacities

Author

Chamarande, Jordan, Cunat, Lisiane, Caillet, Céline, Mathieu, Laurence, Duval, Jérôme F. L., Lozniewski, Alain, Frippiat, Jean-Pol, Alauzet, Corentine, Cailliez-Grimal, Catherine, Stress, Immunité, Pathogènes (SIMPA), Université de Lorraine (UL), Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Chimie Physique et Microbiologie pour les Matériaux et l'Environnement (LCPME), Institut de Chimie du CNRS (INC)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)

Subjects
stress, adhesion and biofilm capacities, gut microbiota, QH301-705.5, [SDV]Life Sciences [q-bio], Parabacteroides distasonis, [SDE]Environmental Sciences, Biology (General), Article
Abstract

The gut microbiota is a complex and dynamic ecosystem whose balance and homeostasis are essential to the host’s well-being and whose composition can be critically affected by various factors, including host stress. Parabacteroides distasonis causes well-known beneficial roles for its host, but is negatively impacted by stress. However, the mechanisms explaining its maintenance in the gut have not yet been explored, in particular its capacities to adhere onto (bio)surfaces, form biofilms and the way its physicochemical surface properties are affected by stressing conditions. In this paper, we reported adhesion and biofilm formation capacities of 14 unrelated strains of P. distasonis using a steam-based washing procedure, and the electrokinetic features of its surface. Results evidenced an important inter-strain variability for all experiments including the response to stress hormones. In fact, stress-induced molecules significantly impact P. distasonis adhesion and biofilm formation capacities in 35% and 23% of assays, respectively. This study not only provides basic data on the adhesion and biofilm formation capacities of P. distasonis to abiotic substrates but also paves the way for further research on how stress-molecules could be implicated in P. distasonis maintenance within the gut microbiota, which is a prerequisite for designing efficient solutions to optimize its survival within gut environment.

Published
2021

39. Clostridium haemolyticum Infection: A Cause of Hemolytic Anemia in a Patient with Bone Marrow Necrosis

Author

Laure Diancourt, Alain Lozniewski, Anne Sophie Lagneaux, Corentine Alauzet, Emmanuelle Stein, Sandrine Henard, Pierre Mathieu, Pierre Perez, Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Centre National de Référence des Bactéries Anaérobies et Botulisme - National Reference Center Anaerobic Bacteria and Botulism (CNR), Institut Pasteur [Paris] (IP)-Université Paris Cité (UPCité), Centre Hospitalier de Verdun Saint-Mihiel, Stress, Immunité, Pathogènes (SIMPA), Université de Lorraine (UL), and This research received no external funding

Subjects
Microbiology (medical), Fastidious organism, Hemolytic anemia, Clostridium haemolyticum, 040301 veterinary sciences, medicine.drug_class, QH301-705.5, [SDV]Life Sciences [q-bio], Antibiotics, Case Report, Microbiology, 0403 veterinary science, 03 medical and health sciences, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Virology, medicine, Biology (General), hemolytic anemia, 030304 developmental biology, 0303 health sciences, Past medical history, bone marrow necrosis, business.industry, Clindamycin, Myeloid leukemia, 04 agricultural and veterinary sciences, medicine.disease, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, medicine.anatomical_structure, Bacteremia, Immunology, human infection, Bone marrow, business, medicine.drug
Abstract

Clostridium haemolyticum is a sporulating Gram-positive anaerobic rod that is considered to be one of the most fastidious and oxygen-sensitive anaerobes. It is a well-known animal pathogen and the cause of bacillary hemoglobinuria primarily in cattle. To date, human infections caused by C. haemolyticum have been reported in three patients with malignant underlying diseases. We present herein the case of a 30-year-old obese woman with no significant past medical history who developed bacteremia caused by C. haemolyticum with massive intravascular hemolysis associated with bone marrow necrosis and acute renal failure. Because of subculture failure, the diagnosis was made on the basis of 16S rDNA sequencing and next-generation sequencing. The patient, who had been afebrile for 20 days after a 17-day-course of antibiotics, experienced a second bacteremic episode caused by C. haemolyticum. After having been successfully treated for 42 days with clindamycin and amoxicillin-clavulanic acid, the patient developed acute myeloid leukemia as a result of bone marrow regeneration. Although uncommon in humans, infections caused by C. haemolyticum are severe and should be considered in a febrile patient who has severe hemolytic anemia. This case also highlights the importance of using molecular techniques for the identification of this fastidious anaerobic organism.

Published
2021

41. Mobile insertion cassette elements found in small non-transmissible plasmids in Proteeae may explain qnrD mobilization.

Author

Thomas Guillard, Antoine Grillon, Christophe de Champs, Céline Cartier, Janick Madoux, Béatrice Berçot, Anne-Laure Lebreil, Alain Lozniewski, Jacques Riahi, Véronique Vernet-Garnier, and Emmanuelle Cambau

Subjects
Medicine, Science
Abstract

qnrD is a plasmid mediated quinolone resistance gene from unknown origin, recently described in Enterobacteriaceae. It encodes a pentapeptide repeat protein 36-60% different from the other Qnr (A, B, C, S and VC). Since most qnrD-positive strains were described as strains belonging to Proteus or Providencia genera, we hypothesized that qnrD originated in Proteeae before disseminating to other enterobacterial species. We screened 317 strains of Proteeae for qnrD and its genetic support by PCR. For all the seven qnrD-positive strains (4 Proteus mirabilis, 1 Proteus vulgaris and 2 Providencia rettgeri) the gene was carried onto a small non-transmissible plasmid, contrarily to other qnr genes that are usually carried onto large multi-resistant plasmids. Nucleotide sequences of the qnrD-bearing plasmids were 96% identical. Plasmids contained 3 ORFs apart from qnrD and belonged to an undescribed incompatibility group. Only one plasmid, in P. vulgaris, was slightly different with a 1,568-bp insertion between qnrD and its promoter, leading to absence of quinolone resistance. We sought for similar plasmids in 15 reference strains of Proteeae, but which were tested negative for qnrD, and found a 48% identical plasmid (pVERM) in Providencia vermicola. In order to explain how qnrD could have been inserted into such native plasmid, we sought for gene mobilization structures. qnrD was found to be located within a mobile insertion cassette (mic) element which sequences are similar to one mic also found in pVERM. Our conclusions are that (i) the small non-transmissible qnrD-plasmids described here may result from the recombination between an as-yet-unknown progenitor of qnrD and pVERM, (ii) these plasmids are maintained in Proteeae being a qnrD reservoir (iii) the mic element may explain qnrD mobilization from non-transmissible plasmids to mobilizable or conjugative plasmids from other Enterobacteriaceae, (iv) they can recombined with larger multiresistant plasmids conjugated in Proteeae.

Published
2014
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42. Accuracy of procalcitonin for diagnosing peripheral blood culture contamination among patients with positive blood culture for potential contaminants

Author

Anne Elisabeth Manteaux, Alain Lozniewski, Jean-Louis Guéant, Nejla Aissa, Clémence Berthezène, and Abderrahim Oussalah

Subjects
Microbiology (medical), medicine.medical_specialty, Univariate analysis, medicine.diagnostic_test, medicine.drug_class, business.industry, Antibiotics, Bacteremia, General Medicine, Contamination, Logistic regression, medicine.disease, Procalcitonin, Infectious Diseases, Cross-Sectional Studies, Blood Culture, Internal medicine, medicine, Biomarker (medicine), Humans, Blood culture, business, Retrospective Studies
Abstract

Blood culture contamination is still a frequently observed event and may lead to unnecessary antibiotic prescriptions and additional hazards and costs. However, in patients hospitalized in tertiary care, true bacteremias for pathogens that are classically considered as contaminants can be observed. We assessed the diagnostic accuracy of procalcitonin for differentiating blood culture contamination from bacteremia in patients with positive blood cultures for potential contaminants. We carried out a retrospective, cross-sectional, observational study on consecutive patients hospitalized between January 2016 and May 2019 at the University Hospital of Nancy and who had a positive peripheral blood culture for a pathogen classically considered as a potential contaminant. During the study period, 156 patients were screened, and 154 were retained in the analysis. Among the variables that were significantly associated with a diagnosis of blood culture contamination in univariate analyses, four were maintained in multivariate logistic regression analysis: a number of positive blood culture bottles ≤ 2 (OR 23.76; 95% CI 1.94–291.12; P = 0.01), procalcitonin

Published
2021

47. Evaluating antibiotic stewardship and healthcare-associated infections surveillance assisted by computer: protocol for an interrupted time series study

Author

Alexandre Baudet, Nelly Agrinier, Alexandre Charmillon, Céline Pulcini, Alain Lozniewski, Nejla Aissa, Julie Lizon, Nathalie Thilly, Béatrice Demoré, Arnaud Florentin, Adaptation, mesure et évaluation en santé. Approches interdisciplinaires (APEMAC), Université de Lorraine (UL), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Centre d'investigation clinique - Epidémiologie clinique [Nancy] (CIC-EC), Centre d'investigation clinique [Nancy] (CIC), Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL)-Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Université de Lorraine (UL), Service des Maladies Infectieuses et Tropicales [CHRU Nancy], Stress, Immunité, Pathogènes (SIMPA), Département Méthodologie Promotion Investigation [CHRU Nancy] (MPI), and Bocquier, Aurélie

Subjects
Adult, Antimicrobial Stewardship, Computers, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, [SDV.SPEE] Life Sciences [q-bio]/Santé publique et épidémiologie, [SDV.MHEP.MI] Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Humans, Interrupted Time Series Analysis, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Prospective Studies, General Medicine, Delivery of Health Care, Anti-Bacterial Agents
Abstract

IntroductionAntibiotic resistance is one of the most pressing health threats that mankind faces now and in the coming decades. Antibiotic resistance leads to longer hospital stays, higher medical costs and increased mortality. In order to tackle antibiotic resistance, we will implement in our tertiary care university hospital a computerised-decision support system (CDSS) facilitating antibiotic stewardship and an electronic surveillance software (ESS) facilitating infection prevention and control activities. We describe the protocol to evaluate the impact of the CDSS/ESS combination in adult inpatients.Methods and analysisWe conduct a pragmatic, prospective, single-centre, before–after uncontrolled study with an interrupted time-series analysis 12 months before and 12 months after the introduction of the CDSS for antibiotic stewardship (APSS) and ESS for infection surveillance (ZINC). APSS and ZINC will assist, respectively, the antibiotic stewardship and the infection prevention and control teams of Nancy University Hospital (France). We will evaluate the impact of the CDSS/ESS on the antibiotic use in adult (≥18 years) inpatients (hospitalised ≥48 hours). The primary outcome is the prescription rate by all healthcare professionals from the hospital of all systemic antibiotics expressed in defined daily doses/1000 patients/month. Concurrently, we will assess the safety of the intervention, its impact on the appropriateness of antibiotic prescriptions and on additional precautions (isolation precautions) as recommended in guidelines, and on bacterial epidemiology (multidrug-resistant bacteria and Clostridioides difficile infections) in the hospital. Finally, we will evaluate the users’ satisfaction and the cost of this intervention from the hospital perspective.Ethics and disseminationThe protocol has been approved by the Ethics Committee of Nancy University Hospital and registered on the ClinicalTrials platform. Results will be disseminated through conferences’ presentations and publications in peer-reviewed journals.Trial registration numberNCT04976829.

Published
2022

48. Impact of a Model Used to Simulate Socio-Environmental Stressors Encountered During Spaceflight on Murine Intestinal Microbiota

Author

Corentine Alauzet, Lisiane Cunat, Maxime Wack, Laurence Lanfumey, Christine Legrand-Frossi, Alain Lozniewski, Nelly Agrinier, Catherine Cailliez-Grimal, and Jean-Pol Frippiat

Abstract

Background: During deep-space travels, crewmembers face various physical and psychosocial stressors that could alter gut microbiota composition. Since it is well known that intestinal dysbiosis is involved in the onset or exacerbation of several disorders, the aim of this study was to evaluate changes in intestinal microbiota in a ground-based murine model mimicking psychosocial stressors encountered during a long-term space mission.Results: We demonstrate that 3 weeks of exposure to Chronic Unpredictable Mild Stress (CUMS) induce significant change in intracaecal β-diversity characterized by an important increase of the Firmicutes/Bacteroidetes ratio. These stress-induced alterations are associated with a decrease of Porphyromonadaceae, particularly of the genus Barnesiella that is a major member of gut microbiota in mice, but also in human, where it is described as having protective properties.Conclusions: These results raise the question of the impact of stress-induced decrease of beneficial taxa, support recent data obtained with in-flight experimentations or gravity change models, and emphasize the critical need for further studies exploring the impact of spaceflight on intestinal microbiota in order to propose strategies to countermeasure spaceflight-associated dysbiosis and its consequences on health.

Published
2020

49. Staphylococcus capitis isolated from bloodstream infections: a nationwide 3-month survey in 38 neonatal intensive care units

Author

Sylvie Joron, Stéphane Marret, Fabrice Lapeyre, Jérôme Larche, Jacqueline Grando, David Leyssene, Jean Nakhleh, Clarisse Dupin, Tania Foucan, Stéphanie Bordes-Couecou, Géraldine Abadie, Franck Labbe, Marie Kempf, Manuel Petitfrere, Audrey Robine, Marie Decalonne, Chantal Chaplain, Philippe Jouvencel, Florent Goube, Benjamin Cotte, Laurent Villeneuve, Adeline Lacazette, Raoul Baron, Jean-Marc Jellimann, Anne-Sophie Trentesaux, Nathalie Chautemps, Laurent Mereghetti, Olivier Dauwalder, Nicolas Fortineau, Christine Roques Ceschin, Rafik Ben Ammar, Sandra Bourdon, Alain Gravet, Audrey Glanard, Olivier Belmonte, Jacques Gilquin, Arnaud Florentin, Souad Slimani, Annick Lefebvre, Jérôme Guinard, Edith Malpote, Céline Chatelet, Isabelle Bauvin, Alain Lozniewski, Anaëlle Muggeo, Geneviève Héry-Arnaud, Stéphane Le Vu, Isabelle Ligi, Anne Le Pourhiennec, Christian Cattoen, Olivier Join-Lambert, Bruno Pozetto, Carole De Chillaz, Amine Siali, Pascale Martres, Michel Drancourt, Claire Lesteven, Sandra C. dos Santos, Nadège Bourgeois-Nicolaos, Aude Davy, Claude Olive, Rémi Gimenes, Laure Gibert, Raymond Ruimy, Virginie Morange, Antoine Bouissou, Julien Mourdie, Emmanuelle Bille, Marie-Noëlle Noulard, Vincent Cattoir, Martine Delorme, Dominique Trivier, Luc Desfrere, Hugues Patural, Patrick Barthelemy, Nadia Idri, Florence Lemann, Franck-Olivier Mallaval, Sophie Ketterer-Martinon, Christian Vandenbussche, Pierre Frange, Sylvie Ledru, Mouna Khecharem, Pierre Lureau, Sophie Boyer, Philippe Berthelot, Salma Ben Hadj Yahia, Clément Legeay, Emilie Benabid, Guillaume Menard, Marion Levast-Raffin, Céline Coroller-Bec, Claire Huart, Maryvonne Demasure, Pascal Bolot, Yasmina Berrouane, Hélène Cormier, Pascale Minery, Pascale Penn, Peggy Larroude, Evelyne Werner, Géraldine Gascoin, Virginie Forget, Nathalie van der Mee-Marquet, Stéphanie Soive, Karine Gambarotto, Vanina Ambrogi, Aurore Claudinon, Serge Klosowski, Brigitte Riviere, Véronique Merle, Laura Menvielle, Véronique Faraut-Derouin, Saïd Aberrane, Alain Beuchee, Nolwenn Le Sache, Hôpital Bretonneau, CHU Trousseau [Tours], Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Centre hospitalier Félix-Guyon [Saint-Denis, La Réunion], Centre Hospitalier René Dubos [Pontoise], Centre Hospitalier Intercommunal de Créteil (CHIC), Centre Hospitalier Régional Universitaire de Brest (CHRU Brest), Hôpital de la Conception [CHU - APHM] (LA CONCEPTION), Centre hospitalier de Pau, Centre Hospitalier Universitaire de La Réunion (CHU La Réunion), AP-HP - Hôpital Antoine Béclère [Clamart], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre Hospitalier de Calais, Centre Hospitalier Universitaire de Nice (CHU Nice), Centre Hospitalier Universitaire de Saint-Etienne [CHU Saint-Etienne] (CHU ST-E), CHU Pontchaillou [Rennes], Institut Necker Enfants-Malades (INEM - UM 111 (UMR 8253 / U1151)), Université Paris Descartes - Paris 5 (UPD5)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Centre Hospitalier de Saint-Denis [Ile-de-France], Centre Hospitalier de la Côte Basque (CHCB), Groupe Hospitalier du Havre, Hôpital Charles Nicolle [Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU), Centre hospitalier [Valenciennes, Nord], Centre Hospitalier Universitaire [Rennes], GHT de l'Artois, Centre Hospitalier Victor Dupouy, Centre Hospitalier Métropole Savoie [Chambéry], Centre Hospitalier Universitaire d'Angers (CHU Angers), PRES Université Nantes Angers Le Mans (UNAM), Centre Hospitalier Le Mans (CH Le Mans), Clinique du Val d'Ouest, CHU Necker - Enfants Malades [AP-HP], Hospices Civils de Lyon (HCL), Centre hospitalier Saint-Brieuc, Centre Hospitalier Georges Renon [Niort] (CH Georges Renon Niort), Centre Hospitalier Régional d'Orléans (CHRO), Hôpital Louis Mourier - AP-HP [Colombes], Microbes évolution phylogénie et infections (MEPHI), Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS), CHU de Saint-Brieuc, Interactions Gènes-Risques environnementaux et Effets sur la Santé (INGRES), Université de Lorraine (UL), Unité de Recherche Environnement Physique de la plante Horticole (EPHOR), Université d'Angers (UA)-AGROCAMPUS OUEST, AP-HP Hôpital Bicêtre (Le Kremlin-Bicêtre), CHU Pointe-à-Pitre/Abymes [Guadeloupe], Groupe de Recherche sur l'Adaptation Microbienne (GRAM 2.0), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Hôpital Hôtel-Dieu [Paris], Hôpital Delafontaine, Centre Hospitalier de Mulhouse, site du Hasenrain (Mulhouse), Laboratoire Universitaire de Biodiversité et Ecologie Microbienne (LUBEM), Université de Brest (UBO), Service de réanimation néonatale [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), Pathogénie des infections systémiques (UMR_S 570), Centre Régional de PharmacoVigilance Nord-Pas-de-Calais [CHU Lille] (CRPV), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Faculté de Médecine Henri Warembourg - Université de Lille, Centre de Recherche en Cancérologie Nantes-Angers (CRCNA), PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM)-Hôtel-Dieu de Nantes-Institut National de la Santé et de la Recherche Médicale (INSERM)-Hôpital Laennec-Centre National de la Recherche Scientifique (CNRS)-Faculté de Médecine d'Angers-Centre hospitalier universitaire de Nantes (CHU Nantes), CHU de la Martinique [Fort de France], Groupe Hospitalier du Havre Hôpital Jacques Monod (MONTIVILLIERS) (GHH), Polyclinique Médipôle Saint-Roch [Cabestany], Centre Hospitalier Universitaire de Reims (CHU Reims), CHU Caen, Normandie Université (NU)-Tumorothèque de Caen Basse-Normandie (TCBN), Université d'Auvergne - Clermont-Ferrand I (UdA), Aix-Marseille Université - École de médecine (AMU SMPM MED), Aix-Marseille Université - Faculté des sciences médicales et paramédicales (AMU SMPM), Aix Marseille Université (AMU)-Aix Marseille Université (AMU), Service de microbiologie [CHU Nancy], Service psychiatrique de l'enfant et de l'adolescent [CHU Hôpital Robert Debré], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôpital Robert Debré, Service de bactériologie-virologie [Tours], Centre Hospitalier Régional Universitaire de Tours (CHRU Tours)-Hôpital Bretonneau, Infectiologie et Santé Publique (UMR ISP), Université de Tours (UT)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Registre EPIMAD, Normandie Université (NU)-Normandie Université (NU)-CHU Amiens-Picardie-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Pathogénie des Staphylocoques – Staphylococcal Pathogenesis (StaPath), Centre International de Recherche en Infectiologie (CIRI), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Université Jean Monnet - Saint-Étienne (UJM)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Groupe Hospitalier Artois-Ternois Centre Hospitalier d’Arras, Système Nerveux Autonome - Epidémiologie, Physiologie, Ingénierie, Santé (SNA - EPIS), Centre Hospitalier Universitaire de Saint-Etienne [CHU Saint-Etienne] (CHU ST-E)-Université Jean Monnet - Saint-Étienne (UJM), ELSAN Polyclinique Majorelle, Centre Hospitalier Intercommunal Castres-Mazamet (CHIC-CM), Centre Hospitalier Universitaire de Toulouse (CHU Toulouse), Centre Hospitalier Universitaire de Martinique [Fort-de-France, Martinique], Centre Hospitalier de Lens, Institut de Veille Sanitaire (INVS), Hôpital Trousseau, Jonchère, Laurent, Centre Hospitalier Universitaire de Saint-Etienne (CHU de Saint-Etienne), Le CHCB, Centre Hospitalier de la Côte Basque, Centre International de Recherche en Infectiologie - UMR (CIRI), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Système Nerveux Autonome - Epidémiologie, Physiologie, Ingénierie, Santé (SNA-EPIS), Université Jean Monnet - Saint-Étienne (UJM)-Centre Hospitalier Universitaire de Saint-Etienne, CHU Saint-Etienne, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Université de Caen Normandie (UNICAEN), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-Université Lille 2 - Faculté de Médecine, Université de Tours-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille)-CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-CHU Amiens-Picardie, Centre Hospitalier Régional Universitaire de Tours (CHRU TOURS), Institut National de la Santé et de la Recherche Médicale (INSERM)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Santé et de la Recherche Médicale (INSERM)-École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS), Université Jean Monnet [Saint-Étienne] (UJM)-Centre Hospitalier Universitaire de Saint-Etienne, CHU Toulouse [Toulouse], Centre Hospitalier Universitaire Félix-Guyon [Saint-Denis, La Réunion, France], Centre Hospitalier Universitaire de Toulouse, Department of Microbiology Brest, Department of Microbiology, Brest, CHU CLAMART, Centre Hospitalier Universitaire de Nice (CHU de Nice), Centre Hospitalier Côte Basque, Bayonne, CHU Le Havre, Laboratory of microbiology and infection control, Assistance publique-Hôpitaux de Paris, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP), Centre Hospitalier Universitaire Charles Nicolle, Partenaires INRAE, CHU de la Réunion, Saint-Denis, France., CHU Lens, CHU Argenteuil, Centre Hospitalier Métropole Savoie-Site de Chambéry, La Clinique du Val d'Ouest, Hôpitaux Est Hôpital Louis Pradel - Hospices Civils de Lyon, Centre Hospitalier Régional d'Orléans (CHR), Hopital Louis Mourier - AP-HP [Colombes], Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU), Service de virologie, Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-CHU Pontchaillou [Rennes], Hôpital Antoine Béclère, Assistance Publique - Hôpitaux de Paris (AP-HP), Service de Bactériologie-Virologie, Hôpital Bretonneau-Centre Hospitalier Régional Universitaire de Tours (CHRU Tours), Centre d'infectiologie Necker-Pasteur [CHU Necker], Service de chirurgie infantile, CHU Felix Guyon, Saint Denis de La Réunion, Hôtel-Dieu, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Hôtel-Dieu, Unité d'Hygiène Hospitalière, hospices civils de Lyon, Hôpital du Hasenrain, Mulhouse, CHU Valenciennes, Université Henri Poincaré - Nancy 1 (UHP), Hôpital de Bayonne [Bayonne], CHU Kremlin-Bicétre, Anofel Cryptosporidium National Network, Polyclinique de St Roch, CHU Pau, Unité de prévention et de lutte contre les infections nosocomiales [CHU Angers], PRES Université Nantes Angers Le Mans (UNAM)-PRES Université Nantes Angers Le Mans (UNAM), Division of Neonatology, La Conception Hospital, Assistance Publique-Hôpitaux de Marseille and Faculté de Médecine, Université de la Méditerranée - Aix-Marseille 2, Laboratoire de Microbiologie clinique et environnementale [Pointe-à-Pitre, Guadeloupe, France], Centre Hospitalier Universitaire de Rennes (CHU Rennes), Hôpital privé de l'Estuaire [Le Havre], Pathogénie des Staphylocoques – Staphylococcal Pathogenesis, Hôpital d'Arras, CHU Le MAns, Polyclinique Majorelle, Laboratoire de Microbiologie, Centre Hospitalier Intercommunal Castres-Mazamet, Laboratoire de bactériologie, Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-AP-HP - Hôpital Bichat - Claude Bernard [Paris]-Université Paris Diderot - Paris 7 (UPD7), Laboratoire de Recherche Opérationnelle et Mathématiques de la Décision - LAROMAD (Alger, Algérie), Centre Hospitalier d’Arras, Unité de Méthodologie en Recherche Clinique, Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Hospices Civils de Lyon (HCL)

Subjects
Male, 0301 basic medicine, Pediatrics, Clone (cell biology), NRCS-A clone, 030501 epidemiology, Staphylococcus capitis, Medical microbiology, [SDV.MHEP.MI]Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Drug Resistance, Multiple, Bacterial, Medicine, [SDV.MP.VIR] Life Sciences [q-bio]/Microbiology and Parasitology/Virology, [SDV.MHEP.ME] Life Sciences [q-bio]/Human health and pathology/Emerging diseases, [SDV.MHEP.ME]Life Sciences [q-bio]/Human health and pathology/Emerging diseases, biology, Brief Report, Gestational age, General Medicine, Staphylococcal Infections, Anti-Bacterial Agents, 3. Good health, [SDV.MHEP.CSC] Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Nationwide active surveillance, Infectious Diseases, [SDV.MP.VIR]Life Sciences [q-bio]/Microbiology and Parasitology/Virology, [SDV.MHEP.MI] Life Sciences [q-bio]/Human health and pathology/Infectious diseases, Vancomycin, Female, France, 0305 other medical science, Infant, Premature, [SDV.MP.PAR] Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology, medicine.drug, Microbiology (medical), medicine.medical_specialty, Bloodstream catheter-related infection, Birth weight, Preterm babies, 030106 microbiology, Late onset, 03 medical and health sciences, [SDV.MHEP.CSC]Life Sciences [q-bio]/Human health and pathology/Cardiology and cardiovascular system, Intensive Care Units, Neonatal, Sepsis, Intensive care, Humans, [SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology, business.industry, Neonatal Intensive Care Unit (NICU), Infant, Newborn, Neonates, biology.organism_classification, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, Catheter-Related Infections, [SDV.MP.BAC] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, business
Abstract

To increase the knowledge about S. capitis in the neonatal setting, we conducted a nationwide 3-month survey in 38 neonatal intensive care units (NICUs) covering 56.6% of French NICU beds. We demonstrated 14.2% of S. capitis BSI (S.capBSI) among nosocomial BSIs. S.capBSI incidence rate was 0.59 per 1000 patient-days. A total of 55.0% of the S.capBSIs were late onset catheter-related BSIs. The S. capitis strains infected preterm babies (median gestational age 26 weeks, median birth weight 855 g). They were resistant to methicillin and aminoglycosides and belonged to the NRCS-A clone. Evolution was favorable in all but one case, following vancomycin treatment.

Published
2020

50. Selective reporting of antibiotic susceptibility testing results: a promising antibiotic stewardship tool

Author

Alain Lozniewski, Gianpiero Tebano, Alexandre Charmillon, Veronica Zanichelli, Nathalie Thilly, Sébastien Fougnot, Yosra Mouelhi, Céline Pulcini, Service des maladies infectieuses et tropicales [CHU Pitié-Salpêtrière], CHU Pitié-Salpêtrière [AP-HP], Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU)-Assistance publique - Hôpitaux de Paris (AP-HP) (AP-HP)-Sorbonne Université (SU), Maladies chroniques, santé perçue, et processus d'adaptation (APEMAC), Université de Lorraine (UL), Lady Davis Institute for Medical Research [Montréal], McGill University = Université McGill [Montréal, Canada]-Jewish General Hospital, Service des Maladies Infectieuses et Tropicales [CHRU Nancy], Centre Hospitalier Régional Universitaire de Nancy (CHRU Nancy), ATOUTBIO, Service de microbiologie [CHU Nancy], Assistance publique - Hôpitaux de Paris (AP-HP) (APHP)-CHU Pitié-Salpêtrière [APHP], and McGill University-Jewish General Hospital

Subjects
0301 basic medicine, Microbiology (medical), medicine.medical_specialty, Susceptibility testing, medicine.drug_class, 030106 microbiology, Antibiotics, Antibiotic susceptibility testing, Inappropriate Prescribing, Microbial Sensitivity Tests, Microbiology, 03 medical and health sciences, Antimicrobial Stewardship, 0302 clinical medicine, Antibiotic resistance, Selective reporting, Virology, Drug Resistance, Bacterial, medicine, Antimicrobial stewardship, Humans, 030212 general & internal medicine, Cascade reporting, Antibiotic use, Medical prescription, Intensive care medicine, ComputingMilieux_MISCELLANEOUS, business.industry, Bacterial Infections, 3. Good health, Anti-Bacterial Agents, Infectious Diseases, Practice Guidelines as Topic, Antibiotic Stewardship, Community setting, [SDV.SPEE]Life Sciences [q-bio]/Santé publique et épidémiologie, Guideline Adherence, business
Abstract

Introduction: Selective reporting of antibiotic susceptibility testing (AST) results is a potentially interesting tool for antibiotic stewardship. It consists of performing AST according to usual practices, but the results are reported to the prescriber only for a few antibiotics (i.e. first-line agents) or not reported at all when colonization is likely.Areas covered: We retrieved 20 studies exploring the impact of selective reporting. Overall, selective reporting is able to influence antibiotic use, both discouraging prescription in case of colonization, and promoting the selection of narrow-spectrum agents. Most studies concerned urine samples. Evidence on the impact on antibiotic resistance is insufficient. Unintended consequences were not observed, but evidence on this topic is scarce. Selective reporting is well implemented in a few countries, and a huge heterogeneity of practices exists.Expert opinion: Evidence shows that selective reporting can help reducing inappropriate and unnecessary antibiotic prescriptions. Uncomplicated urinary tract infections are probably the best initial target, both in hospital and community settings, but other non-severe infections can be a suitable option. The implementation of selective reporting should be promoted by the scientific community, with detailed practical guidelines, and its impact should be further assessed in large interventional studies.

Published
2020

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