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Barone M, Ramayo-Caldas Y, Estellé J, Tambosco K, Chadi S, Maillard F, Gallopin M, Planchais J, Chain F, Kropp C, Rios-Covian D, Sokol H, Brigidi P, Langella P, Martín R. Correction: Gut barrier-microbiota imbalances in early life lead to higher sensitivity to inflammation in a murine model of C-section delivery. Microbiome 2023; 11:173. [PMID: 37542356 PMCID: PMC10403874 DOI: 10.1186/s40168-023-01631-w] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/06/2023]
Affiliation(s)
- M Barone
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy
| | - Y Ramayo-Caldas
- INRAE, AgroParisTech, GABI, Paris-Saclay University, 78350, Jouy-en-Josas, France
- Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Torre Marimon, 08140, Caldes de Montbui, Spain
| | - J Estellé
- INRAE, AgroParisTech, GABI, Paris-Saclay University, 78350, Jouy-en-Josas, France
| | - K Tambosco
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France
| | - S Chadi
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France
| | - F Maillard
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France
| | - M Gallopin
- CNRS, CEA, l'Institut de Biologie Intégrative de La Cellule (I2BC), Paris-Saclay University, 91405, Orsay, France
| | - J Planchais
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France
| | - F Chain
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France
| | - C Kropp
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France
| | - D Rios-Covian
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France
| | - H Sokol
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France
- Gastroenterology Department, Centre de Recherche Saint-Antoine, Centre de Recherche Saint-Antoine, CRSA, AP-HP, INSERM, Saint Antoine Hospital, Sorbonne Université, 75012, Paris, France
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - P Brigidi
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, 40138, Bologna, Italy
| | - P Langella
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - R Martín
- INRAE, AgroParisTech, Micalis Institut, Paris-Saclay University, 78350, Jouy-en-Josas, France.
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France.
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Barone M, Ramayo-Caldas Y, Estellé J, Tambosco K, Chadi S, Maillard F, Gallopin M, Planchais J, Chain F, Kropp C, Rios-Covian D, Sokol H, Brigidi P, Langella P, Martín R. Gut barrier-microbiota imbalances in early life lead to higher sensitivity to inflammation in a murine model of C-section delivery. Microbiome 2023; 11:140. [PMID: 37394428 PMCID: PMC10316582 DOI: 10.1186/s40168-023-01584-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Accepted: 05/25/2023] [Indexed: 07/04/2023]
Abstract
BACKGROUND Most interactions between the host and its microbiota occur at the gut barrier, and primary colonizers are essential in the gut barrier maturation in the early life. The mother-offspring transmission of microorganisms is the most important factor influencing microbial colonization in mammals, and C-section delivery (CSD) is an important disruptive factor of this transfer. Recently, the deregulation of symbiotic host-microbe interactions in early life has been shown to alter the maturation of the immune system, predisposing the host to gut barrier dysfunction and inflammation. The main goal of this study is to decipher the role of the early-life gut microbiota-barrier alterations and its links with later-life risks of intestinal inflammation in a murine model of CSD. RESULTS The higher sensitivity to chemically induced inflammation in CSD mice is related to excessive exposure to a too diverse microbiota too early in life. This early microbial stimulus has short-term consequences on the host homeostasis. It switches the pup's immune response to an inflammatory context and alters the epithelium structure and the mucus-producing cells, disrupting gut homeostasis. This presence of a too diverse microbiota in the very early life involves a disproportionate short-chain fatty acids ratio and an excessive antigen exposure across the vulnerable gut barrier in the first days of life, before the gut closure. Besides, as shown by microbiota transfer experiments, the microbiota is causal in the high sensitivity of CSD mice to chemical-induced colitis and in most of the phenotypical parameters found altered in early life. Finally, supplementation with lactobacilli, the main bacterial group impacted by CSD in mice, reverts the higher sensitivity to inflammation in ex-germ-free mice colonized by CSD pups' microbiota. CONCLUSIONS Early-life gut microbiota-host crosstalk alterations related to CSD could be the linchpin behind the phenotypic effects that lead to increased susceptibility to an induced inflammation later in life in mice. Video Abstract.
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Affiliation(s)
- M. Barone
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - Y. Ramayo-Caldas
- INRAE, AgroParisTech, GABI, Paris-Saclay University, 78350 Jouy-en-Josas, France
- Animal Breeding and Genetics Program, Institute for Research and Technology in Food and Agriculture (IRTA), Torre Marimon, 08140 Caldes de Montbui, Spain
| | - J. Estellé
- INRAE, AgroParisTech, GABI, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - K. Tambosco
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - S. Chadi
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - F. Maillard
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - M. Gallopin
- CNRS, CEA, l’Institut de Biologie Intégrative de La Cellule (I2BC), Paris-Saclay University, 91405 Orsay, France
| | - J. Planchais
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - F. Chain
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - C. Kropp
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - D. Rios-Covian
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
| | - H. Sokol
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
- Gastroenterology Department, Centre de Recherche Saint-Antoine, Centre de Recherche Saint-Antoine, CRSA, AP-HP, INSERM, Saint Antoine Hospital, Sorbonne Université, 75012 Paris, France
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - P. Brigidi
- Microbiomics Unit, Department of Medical and Surgical Sciences, University of Bologna, 40138 Bologna, Italy
| | - P. Langella
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France
| | - R. Martín
- INRAE, AgroParisTech, Micalis Institut,, Paris-Saclay University, 78350 Jouy-en-Josas, France
- Paris Centre for Microbiome Medicine (PaCeMM) FHU, Paris, France
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Atlan C, Chatelier C, Viola A, Dupraz M, Leake S, Eymery J, Maillard F, Richard M. Operando potential-induced strain heterogeneity of a breathing Pt nanoparticle. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322090180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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Scohy M, Montella C, Claudel F, Abbou S, Dubau L, Maillard F, Sibert E, Sunde S. Investigating the oxygen evolution reaction on Ir(111) electrode in acidic medium using conventional and dynamic electrochemical impedance spectroscopy. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.07.047] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Maillard F, Rousset S, Pereira B, Boirie Y, Duclos M, Boisseau N. High-intensity interval training is more effective than moderate-intensity continuous training in reducing abdominal fat mass in postmenopausal women with type 2 diabetes: A randomized crossover study. Diabetes Metab 2018; 44:516-517. [PMID: 30243615 DOI: 10.1016/j.diabet.2018.09.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 08/23/2018] [Accepted: 09/03/2018] [Indexed: 10/28/2022]
Affiliation(s)
- F Maillard
- Université Clermont Auvergne, laboratoire des adaptations métaboliques à l'exercice en conditions physiologiques et pathologiques (AME2P), 63171 Aubière cedex, France.
| | - S Rousset
- INRA, human nutrition unit, UMR1019, 63000 Clermont-Ferrand, France; CRNH-Auvergne, 63000 Clermont-Ferrand, France.
| | - B Pereira
- University hospital Clermont-Ferrand, biostatistics unit (DRCI), 63000 Clermont-Ferrand, France.
| | - Y Boirie
- INRA, human nutrition unit, UMR1019, 63000 Clermont-Ferrand, France; Department of human nutrition, 63000 Clermont-Ferrand university hospital, G.-Montpied hospital, Clermont-Ferrand, 63000, France; UFR medicine, university Clermont 1, 63000 Clermont-Ferrand, France; CRNH-Auvergne, 63000 Clermont-Ferrand, France.
| | - M Duclos
- INRA, human nutrition unit, UMR1019, 63000 Clermont-Ferrand, France; UFR medicine, university Clermont 1, 63000 Clermont-Ferrand, France; CRNH-Auvergne, 63000 Clermont-Ferrand, France; Department of sport medicine and functional explorations, 63000 Clermont-Ferrand university hospital, G.-Montpied Hospital, Clermont-Ferrand, 63000, France.
| | - N Boisseau
- Université Clermont Auvergne, laboratoire des adaptations métaboliques à l'exercice en conditions physiologiques et pathologiques (AME2P), 63171 Aubière cedex, France; CRNH-Auvergne, 63000 Clermont-Ferrand, France.
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Girault A, Deneux-Tharaux C, Sentilhes L, Maillard F, Goffinet F. Undiagnosed abnormal postpartum blood loss: Incidence and risk factors. PLoS One 2018; 13:e0190845. [PMID: 29320553 PMCID: PMC5761868 DOI: 10.1371/journal.pone.0190845] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2016] [Accepted: 12/16/2017] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND We aimed to evaluate the incidence of undiagnosed abnormal postpartum blood loss (UPPBL) after vaginal delivery, identify the risk factors and compare them to those of postpartum haemorrhage (PPH). METHOD The study population included women who participated in a randomized controlled trial of women with singleton low-risk pregnancy who delivered vaginally after 35 weeks' gestation (n = 3917). Clinical PPH was defined as postpartum blood loss ≥ 500 mL measured by using a collector bag and UPPBL was defined by a peripartum change in haemoglobin ≥ 2 g/dL in the absence of clinical PPH. Risk factors were assessed by multivariate multinomial logistic regression. RESULTS The incidence of UPPBL and PPH was 11.2% and 11.0% of vaginal deliveries, respectively. The median peripartum change in Hb level was comparable between UPPBL and PPH groups (2.5 g/dL interquartile range [2.2-3.0] and 2.4 g/dL IQR [1.5-3.3]). Risk factors specifically associated with UPPBL were Asian geographical origin (adjusted OR [aOR] 2.3, 95% confidence interval [CI] 1.2-4.2; p = 0.009), previous caesarean section (aOR 3.4, 2.1-5.5; p<0.001) and episiotomy (aOR 2.6, 1.8-3.6; p<0.001). Risk factors for both UPPBL and PPH were primiparity, long duration of labour, instrumental delivery and retained placenta. CONCLUSION Undiagnosed abnormal postpartum blood loss is frequent among women giving birth vaginally and has specific risk factors. The clinical importance of this entity needs further confirmation, and the benefit of systematic or targeted prevention strategies needs to be assessed.
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Affiliation(s)
- Aude Girault
- INSERM UMR 1153, Obstetrical, Perinatal and Paediatric Epidemiology Research Team (Epopé), Centre for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France
- * E-mail:
| | - Catherine Deneux-Tharaux
- INSERM UMR 1153, Obstetrical, Perinatal and Paediatric Epidemiology Research Team (Epopé), Centre for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France
| | - Loic Sentilhes
- Department of Obstetrics and Gynaecology, Angers University Hospital, France
| | - Françoise Maillard
- INSERM UMR 1153, Obstetrical, Perinatal and Paediatric Epidemiology Research Team (Epopé), Centre for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France
| | - François Goffinet
- INSERM UMR 1153, Obstetrical, Perinatal and Paediatric Epidemiology Research Team (Epopé), Centre for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France
- Port-Royal Maternity Unit, Department of Obstetrics Paris, Cochin Broca Hôtel-Dieu hospital, Assistance Publique-Hôpitaux de Paris, Paris, France
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Sentilhes L, Maillard F, Brun S, Madar H, Merlot B, Goffinet F, Deneux-Tharaux C. Risk factors for chronic post-traumatic stress disorder development one year after vaginal delivery: a prospective, observational study. Sci Rep 2017; 7:8724. [PMID: 28821837 PMCID: PMC5562814 DOI: 10.1038/s41598-017-09314-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 07/18/2017] [Indexed: 11/08/2022] Open
Abstract
Our study aimed to assess the prevalence of post-traumatic stress disorder (PTSD) after childbirth one year after vaginal delivery and to identify characteristics of women and deliveries associated with it. Questionnaires were mailed a year after delivery to 1103 women with prospectively collected delivery and postpartum data, including a question on day 2 assessing their experience of childbirth. PTSD was assessed a year later by the Impact of Event and Traumatic Event Scales; 22 women (4.2%, 95%CI 2.7-6.3%) met the PTSD diagnostic criteria and 30 (5.7%; 95%CI 3.9-8.0%) PTSD profile criteria. Factors associated with higher risk of PTSD profile were previous abortion (aOR 3.6, 95%CI 1.4-9.3), previous postpartum hemorrhage (Aor 5.3, 95%CI 1.3-21.4), and postpartum hemoglobin <9 g/dl (aOR 2.7, 95%CI 1.0-7.5). Among 56 women (10.3%) reporting bad childbirth memories at day 2 postpartum, 11 (21.1%) met PTSD diagnosis and 11 (21.1%) PTSD profile criteria a year later, compared with 11 (2.4%) (P < 0.001) and 18 (3.8%) (P < 0.001), respectively, of the 489 (87.7%) women with good memories. PTSD is not rare at one year after vaginal delivery in a low-risk population. A simple question at day 2 post partum may identify women most at risk of PTSD and help determine if early intervention is needed.
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Affiliation(s)
- Loïc Sentilhes
- Department of Obstetrics and Gynecology, Bordeaux University Hospital, Bordeaux, France.
| | - Françoise Maillard
- Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France
| | - Stéphanie Brun
- Department of Obstetrics and Gynecology, Bordeaux University Hospital, Bordeaux, France
| | - Hugo Madar
- Department of Obstetrics and Gynecology, Bordeaux University Hospital, Bordeaux, France
| | - Benjamin Merlot
- Department of Obstetrics and Gynecology, Bordeaux University Hospital, Bordeaux, France
| | - François Goffinet
- Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France
- Port-Royal Maternity Unit, Department of Obstetrics and Gynecology, Cochin University Hospital, APHP, Paris, France
| | - Catherine Deneux-Tharaux
- Inserm UMR 1153, Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center for Epidemiology and Statistics Sorbonne Paris Cité (CRESS), DHU Risks in pregnancy, Paris Descartes University, Paris, France
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Lions M, Tommasino JB, Chattot R, Abeykoon B, Guillou N, Devic T, Demessence A, Cardenas L, Maillard F, Fateeva A. Insights into the mechanism of electrocatalysis of the oxygen reduction reaction by a porphyrinic metal organic framework. Chem Commun (Camb) 2017; 53:6496-6499. [DOI: 10.1039/c7cc02113e] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Insights into the mechanism of electrocatalysis of the oxygen reduction reaction by a porphyrinic metal organic framework.
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Martemianov S, Maillard F, Thomas A, Lagonotte P, Madier L. Noise diagnosis of commercial Li-ion batteries using high-order moments. RUSS J ELECTROCHEM+ 2016. [DOI: 10.1134/s1023193516120089] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Maillard F, Rousset S, Pereira B, Traore A, de Pradel Del Amaze P, Boirie Y, Duclos M, Boisseau N. High-intensity interval training reduces abdominal fat mass in postmenopausal women with type 2 diabetes. Diabetes Metab 2016; 42:433-441. [PMID: 27567125 DOI: 10.1016/j.diabet.2016.07.031] [Citation(s) in RCA: 75] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/20/2016] [Accepted: 07/14/2016] [Indexed: 11/25/2022]
Abstract
AIM This study compared the effect of high-intensity interval training (HIIT) and moderate-intensity continuous training (MICT) for 16 weeks on whole-body and abdominal fat mass (FM) in postmenopausal women with type 2 diabetes (T2D). METHODS Seventeen women (69±1 years; BMI: 31±1kg.m-2) were randomly assigned to either a HIIT [60×(8s at 77-85% HRmax, 12s of active recovery)] or MICT (40min at 55-60% of their individual HRR) cycling program for 16 weeks, 2 days/week. Dual-energy X-ray absorptiometry was used to measure whole-body and regional FM content, including abdominal adiposity and visceral adipose tissue. Plasma cholesterol, HDL, LDL, triglycerides, glucose and HbA1c levels were measured. Levels of nutritional intake and physical activity were evaluated by 7-day self-reports. RESULTS Dietary energy (caloric) intake, physical activity level and total body mass did not vary in either group from the beginning to the end of the training intervention. Overall, total FM decreased and total fat-free mass significantly increased over time (by around 2-3%). Total FM reduction at the end of the intervention was not significantly different between groups. However, significant loss of total abdominal (-8.3±2.2%) and visceral (-24.2±7.7%) FM was observed only with HIIT. Time effects were noted for HbA1c and total cholesterol/HDL ratio. CONCLUSION With no concomitant caloric restriction, an HIIT program in postmenopausal women with T2D (twice a week for 16 weeks) appeared to be more effective for reducing central obesity than MICT, and could be proposed as an alternative exercise training program for this population.
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Affiliation(s)
- F Maillard
- Laboratory of the Metabolic Adaptations to Exercise under Physiological and Pathological condition (AME2P), Blaise-Pascal University, EA 3533, 63000 Clermont-Ferrand, France
| | - S Rousset
- INRA, Human Nutrition Unit UMR1019, Clermont-Ferrand, France; CRNH-Auvergne, 63000 Clermont-Ferrand, France
| | - B Pereira
- University Hospital Clermont-Ferrand, Biostatistics Unit (DRCI), 63000 Clermont-Ferrand, France
| | - A Traore
- INRA, QuaPA - UR 0370, plateforme de Résonance Magnétique des Systèmes Biologiques (RMSB), 63122 Saint-Genes-Champanelle, France
| | | | - Y Boirie
- INRA, Human Nutrition Unit UMR1019, Clermont-Ferrand, France; Department of Human Nutrition, Clermont-Ferrand University Hospital, G.-Montpied Hospital, 63000 Clermont-Ferrand, France; UFR Medicine, University Clermont 1, 63000 Clermont-Ferrand, France; CRNH-Auvergne, 63000 Clermont-Ferrand, France
| | - M Duclos
- INRA, Human Nutrition Unit UMR1019, Clermont-Ferrand, France; UFR Medicine, University Clermont 1, 63000 Clermont-Ferrand, France; CRNH-Auvergne, 63000 Clermont-Ferrand, France; Department of Sport Medicine and Functional Explorations, Clermont-Ferrand University Hospital, G.-Montpied Hospital, 63000 Clermont-Ferrand, France
| | - N Boisseau
- Laboratory of the Metabolic Adaptations to Exercise under Physiological and Pathological condition (AME2P), Blaise-Pascal University, EA 3533, 63000 Clermont-Ferrand, France; CRNH-Auvergne, 63000 Clermont-Ferrand, France.
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Sentilhes L, Daniel V, Darsonval A, Deruelle P, Vardon D, Perrotin F, Le Ray C, Senat MV, Winer N, Maillard F, Deneux-Tharaux C. Study protocol. TRAAP - TRAnexamic Acid for Preventing postpartum hemorrhage after vaginal delivery: a multicenter randomized, double-blind, placebo-controlled trial. BMC Pregnancy Childbirth 2015; 15:135. [PMID: 26071040 PMCID: PMC4465316 DOI: 10.1186/s12884-015-0573-5] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Accepted: 05/28/2015] [Indexed: 01/31/2023] Open
Abstract
Background Postpartum hemorrhage (PPH) is a major cause of maternal mortality, accounting for one quarter of all maternal deaths worldwide. Estimates of its incidence in the literature vary widely, from 3 % to 15 % of deliveries. Uterotonics after birth are the only intervention that has been shown to be effective in preventing PPH. Tranexamic acid (TXA), an antifibrinolytic agent, has been investigated as a potentially useful complement to uterotonics for prevention because it has been proved to reduce blood loss in elective surgery, bleeding in trauma patients, and menstrual blood loss. Randomized controlled trials for PPH prevention after cesarean (n = 10) and vaginal (n = 2) deliveries show that women who received TXA had significantly less postpartum blood loss without any increase in their rate of severe adverse effects. However, the quality of these trials was poor and they were not designed to test the effect of TXA on the reduction of PPH incidence. Large, adequately powered, multicenter randomized controlled trials are required before the widespread use of TXA to prevent PPH can be recommended. Methods and design A multicenter, double-blind, randomized controlled trial will be performed. It will involve 4000 women in labor for a planned vaginal singleton delivery, at a term ≥ 35 weeks. Treatment (either TXA 1 g or placebo) will be administered intravenously just after birth. Prophylactic oxytocin will be administered to all women. The primary outcome will be the incidence of PPH, defined by blood loss ≥500 mL, measured with a graduated collector bag. This study will have 80 % power to show a 30 % reduction in the incidence of PPH, from 10.0 % to 7.0 %. Discussion In addition to prophylactic uterotonic administration, a complementary component of the management of third stage of labor acting on the coagulation process may be useful in preventing PPH. TXA is a promising candidate drug, inexpensive, easy to administer, and simple to add to the routine management of deliveries in hospitals. This large, adequately powered, multicenter, randomized placebo-controlled trial seeks to determine if the risk-benefit ratio favors the routine use of TXA after delivery to prevent PPH. Trial registration ClinicalTrials.gov NCT02302456 (November 17, 2014)
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Affiliation(s)
- Loïc Sentilhes
- Department of Obstetrics and Gynecology, Angers University Hospital, 4, rue Larrey, 49933, Angers, France.
| | - Valérie Daniel
- Department of Pharmacy, Angers University Hospital, Angers, France. .,PPRIGO (Production Pharmaceutique pour la Recherche Institutionnelle du Grand Ouest) Brest University Hospital, Brest, France.
| | - Astrid Darsonval
- Department of Pharmacy, Angers University Hospital, Angers, France. .,PPRIGO (Production Pharmaceutique pour la Recherche Institutionnelle du Grand Ouest) Brest University Hospital, Brest, France.
| | - Philippe Deruelle
- Department of Obstetrics and Gynecology, Jeanne de Flandre University Hospital, Lille, France.
| | - Delphine Vardon
- Department of Obstetrics and Gynecology, Caen University Hospital, Caen, France.
| | - Franck Perrotin
- Department of Obstetrics and Gynecology, Tours University Hospital, Tours, France.
| | - Camille Le Ray
- Port-Royal Maternity Unit, Department of Obstetrics and Gynecology, Cochin University Hospital, APHP, Paris, France. .,INSERM, Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Center for Epidemiology and Biostatistics (U1153), Risks in pregnancy DHU, Paris-Descartes University, Paris, France.
| | - Marie-Victoire Senat
- Department of Obstetrics and Gynecology, Kremlin-Bicetre University Hospital, APHP, Paris, France.
| | - Norbert Winer
- Department of Obstetrics and Gynecology, Nantes University Hospital, Nantes, France.
| | - Françoise Maillard
- INSERM, Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Center for Epidemiology and Biostatistics (U1153), Risks in pregnancy DHU, Paris-Descartes University, Paris, France.
| | - Catherine Deneux-Tharaux
- INSERM, Obstetrical, Perinatal and Pediatric Epidemiology Research Team, Center for Epidemiology and Biostatistics (U1153), Risks in pregnancy DHU, Paris-Descartes University, Paris, France.
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Martemianov S, Adiutantov N, Evdokimov YK, Madier L, Maillard F, Thomas A. New methodology of electrochemical noise analysis and applications for commercial Li-ion batteries. J Solid State Electrochem 2015. [DOI: 10.1007/s10008-015-2855-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Maillard F, Manouvrier S, Biardeau X, Ouzzane A, Villers A. Syndrome de Lynch et risque de cancer de la prostate ; revue de la littérature. Prog Urol 2015; 25:225-32. [DOI: 10.1016/j.purol.2015.01.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Revised: 11/30/2014] [Accepted: 01/02/2015] [Indexed: 12/21/2022]
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Guinard-Samuel V, Oderda L, Cimerman P, Maillard F, Dubern B, Tounian P. P303: Prévention de la douleur liée à la mise en place de sonde naso-gastrique chez l’enfant par l’administration de lidocaïne en nébulisation nasale. NUTR CLIN METAB 2014. [DOI: 10.1016/s0985-0562(14)70945-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Levêque C, Vayssière C, Favre R, Audibert F, Chauvet MP, Maillard F, Elhinger V, Arnaud C. Cervical length in asymptomatic twin pregnancies: prospective multicenter comparison of predictive indicators. J Matern Fetal Neonatal Med 2014; 28:37-40. [PMID: 24646294 DOI: 10.3109/14767058.2014.900038] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
UNLABELLED Abstract Objective: To determine whether cervical shortening between 22 and 27 weeks predicts spontaneous preterm delivery before 34 weeks better than a single cervical length (CL) measurement at 22 or 27 weeks in asymptomatic twins. METHODS Prospective 13-center study over a 2-year-period. CL was measured in 120 asymptomatic twin pregnancies. The area under the ROC curve was calculated for each parameter and the cutoff point providing the best diagnostic performance, sensitivity and specificity for predicting spontaneous delivery<34 weeks was defined too. RESULTS About 13/116 women gave birth before 34 weeks. The three ROC curves differed significantly at the 0.05 level. The best cutoff points were CL≤35 mm at 22 weeks, CL≤25 mm at 27 weeks and cervical shortening≥20%. For equal sensitivity values for each, specificity for CL≤25 mm at 27 weeks was 87.5%, significantly better. CONCLUSIONS The performance of cervical shortening for the prediction of preterm delivery of asymptomatic twins before 34 weeks does not differ from that of CL measurements at 22 or 27 weeks. The modest predictive value of CL at 22 weeks and of cervical shortening is an argument against recommending routine CL measurements.
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Affiliation(s)
- Christine Levêque
- Department of Obstetrics and Gynecology , Paule de Viguier CHU Toulouse, France
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Schmitz T, Closset E, Fuchs F, Maillard F, Rozenberg P, Anselem O, Winer N, Perrotin F, Verspyck E, Azria E, Carbonne B, Lepercq J, Goffinet F. 27: Outpatient cervical ripening with nitric oxide (NO) donors for prolonged pregnancy in nullipara: the NOCETER randomized, multicentre, double-blind, placebo-controlled trial. Am J Obstet Gynecol 2014. [DOI: 10.1016/j.ajog.2013.10.060] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Deneux-Tharaux C, Maillard F, Bouet PE, Descamps P, Goffinet F, Sentilhes L. 478: Post-traumatic stress disorder one year after delivery in an unselected population. Am J Obstet Gynecol 2014. [DOI: 10.1016/j.ajog.2013.10.511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Soldo-Olivier Y, Sibert E, Previdello B, Lafouresse M, Maillard F, De Santis M. H electro-insertion into Pd/Pt(111) nanofilms: an original method for isotherm measurement coupled to in situ surface X-ray diffraction structural study. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.06.095] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dubau L, Castanheira L, Berthomé G, Maillard F. An identical-location transmission electron microscopy study on the degradation of Pt/C nanoparticles under oxidizing, reducing and neutral atmosphere. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.03.184] [Citation(s) in RCA: 76] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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El-Jawad M, Chemin JL, Gilles B, Maillard F. A portable transfer chamber for electrochemical measurements on electrodes prepared in ultra-high vacuum. Rev Sci Instrum 2013; 84:064101. [PMID: 23822358 DOI: 10.1063/1.4809936] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
This paper describes a versatile, light weight, and portable chamber dedicated to the transfer of electrodes from ultra-high vacuum (UHV) to atmospheric pressure and the liquid phase. This chamber can be connected to a liquid-phase reaction cell to perform electrochemical measurements and transfer back the electrode to the UHV environment. The experimental set-up can also be turned in order to make the electrode the bottom of the electrochemical cell. The validity and the efficiency of the experimental set-up were tested with a Pt(111) surface that provides unique electrochemical features in acidic sulphate-containing solution. This transfer chamber concept provides the surface science community with a new and versatile tool, complementary to existing systems, which allows fast electrolyte purging or electrochemical measurements under well-controlled mass transport conditions.
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Affiliation(s)
- M El-Jawad
- Science et Ingénierie des MAtériaux et Procédés (SIMAP), UMR 5266 CNRS∕Grenoble INP∕UJF, BP 75, 38402 Saint Martin d'Hères Cedex, France
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Deneux-Tharaux C, Sentilhes L, Maillard F, Closset E, Vardon D, Lepercq J, Goffinet F. Effect of routine controlled cord traction as part of the active management of the third stage of labour on postpartum haemorrhage: multicentre randomised controlled trial (TRACOR). BMJ 2013; 346:f1541. [PMID: 23538918 PMCID: PMC3610557 DOI: 10.1136/bmj.f1541] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/19/2013] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To assess the impact of controlled cord traction on the incidence of postpartum haemorrhage and other characteristics of the third stage of labour in a high resource setting. DESIGN Randomised controlled trial. SETTING Five university hospital maternity units in France. PARTICIPANTS Women aged 18 or more with a singleton fetus at 35 or more weeks' gestation and planned vaginal delivery. INTERVENTIONS Women were randomly assigned to management of the third stage of labour by controlled cord traction or standard placenta expulsion (awaiting spontaneous placental separation before facilitating expulsion). Women in both arms received prophylactic oxytocin just after birth. MAIN OUTCOME MEASURE Incidence of postpartum haemorrhage ≥ 500 mL as measured in a collector bag. RESULTS The incidence of postpartum haemorrhage did not differ between the controlled cord traction arm (9.8%, 196/2005) and standard placenta expulsion arm (10.3%, 206/2008): relative risk 0.95 (95% confidence interval 0.79 to 1.15). The need for manual removal of the placenta was significantly less frequent in the controlled cord traction arm (4.2%, 85/2033) compared with the standard placenta expulsion arm (6.1%, 123/2024): relative risk 0.69, 0.53 to 0.90); as was third stage of labour of more than 15 minutes (4.5%, 91/2030 and 14.3%, 289/2020, respectively): relative risk 0.31, 0.25 to 0.39. Women in the controlled cord traction arm reported a significantly lower intensity of pain and discomfort during the third stage than those in the standard placenta expulsion arm. No uterine inversion occurred in either arm. CONCLUSIONS In a high resource setting, the use of controlled cord traction for the management of placenta expulsion had no significant effect on the incidence of postpartum haemorrhage and other markers of postpartum blood loss. Evidence to recommend routine controlled cord traction for the management of placenta expulsion to prevent postpartum haemorrhage is therefore lacking. TRIAL REGISTRATION ClinicalTrials.gov NCT01044082.
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Affiliation(s)
- Catherine Deneux-Tharaux
- INSERM U953, Epidemiologic Research in Perinatal, Women's, and Children's Health, Pierre et Marie Curie University, Paris, France.
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Deneux-Tharaux C, Sentilhes L, Maillard F, Closset E, Vardon D, Lepercq J, Goffinet F. 5: Should routine controlled cord traction be part of the active management of third stage of labor? The Tracor multicenter randomized controlled trial. Am J Obstet Gynecol 2013. [DOI: 10.1016/j.ajog.2012.10.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Diguisto C, Le Ray C, Maillard F, Khoshnood B, Verspyck E, Perrotin F, Goffinet F. Individual and organisational determinants associated with maintenance tocolysis in the management of preterm labour: a multilevel analysis. PLoS One 2012; 7:e50788. [PMID: 23272071 PMCID: PMC3521755 DOI: 10.1371/journal.pone.0050788] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Accepted: 10/24/2012] [Indexed: 11/18/2022] Open
Abstract
Background Clinical guidelines do not recommend maintenance tocolysis for the management of preterm labour. The French national survey EVAPRIMA revealed it was administered to more than 50% of women hospitalised for preterm labour. Our aim was to identify the individual and organisational determinants associated with maintenance tocolysis. Methods The study was a secondary analysis of the prospective population-based EVAPRIMA study database. Population study included every women hospitalised for preterm labour and at risk of receiving maintenance tocolysis, over a one month period, in 99 randomly selected French maternity units. Main outcome was the prescription of maintenance tocolysis. The association between maintenance tocolysis and individual (maternal or obstetrical) and organisational determinants were evaluated with multilevel analysis. Results Of the 531 women included, 68.9% (95% CI 0.65–0.73) received maintenance tocolysis. The only individual factor associated with maintenance tocolysis was gestational age at admission; the rate of maintenance tocolysis was higher among women hospitalised before 32 weeks of gestation. The significantly different rates between maternity units demonstrated the existence of a maternity unit effect. Maintenance tocolysis was also associated with organisational determinants and was more frequent in level 1 (ORa = 6.54[2.21–19.40]) and level 2 maternity units (ORa = 3.68[1.28–10.59]), in units with less than 1500 deliveries/year (ORa = 5.27[4.43–19.44]), and in specific areas of France. Conclusion A maternity unit effect, explained partly by the organisational characteristics of the units, plays a major role in the practice of maintenance tocolysis. Widespread dissemination of these results might improve adherence to clinical guidelines.
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Affiliation(s)
- Caroline Diguisto
- INSERM UMR S953, Epidemiological Research Unit on Perinatal Health and Women's and Children's Health, Pierre et Marie Curie University, Paris, France.
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Tsatsaris V, Muller F, Maillard F, Delattre M, Guibourdenche J, Dreux S, Winer N, Brion DE, Goffinet F. OS039. Early prediction of preeclampsia with maternal parameters,SVEGF-R1, PLGF, Inhibin-A and PAPP-A in general population: Results from the MSPE study. Pregnancy Hypertens 2012; 2:197-8. [PMID: 26105253 DOI: 10.1016/j.preghy.2012.04.040] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- V Tsatsaris
- Port-Royal Cochin, Nantes, France; PremUP, Nantes, France; Paris-Descartes University, Nantes, France
| | | | | | | | | | - S Dreux
- Robert-Debré, Nantes, France
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Lamibrac A, Maranzana G, Dillet J, Lottin O, Didierjean S, Durst J, Dubau L, Maillard F, Chatenet M. Local Degradations Resulting from Repeated Start-ups and Shut-downs in Proton Exchange Membrane Fuel Cell (PEMFC). ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.egypro.2012.09.038] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Dubau L, Durst J, Maillard F, Guétaz L, Chatenet M, André J, Rossinot E. Further insights into the durability of Pt3Co/C electrocatalysts: Formation of “hollow” Pt nanoparticles induced by the Kirkendall effect. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2011.03.073] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Popowski T, Goffinet F, Batteux F, Maillard F, Kayem G. Prédiction de l’infection maternofœtale en cas de rupture prématurée des membranes par les marqueurs sériques maternels. ACTA ACUST UNITED AC 2011; 39:302-8. [DOI: 10.1016/j.gyobfe.2010.11.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2010] [Accepted: 10/26/2010] [Indexed: 12/28/2022]
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Popowski T, Goffinet F, Maillard F, Schmitz T, Leroy S, Kayem G. Maternal markers for detecting early-onset neonatal infection and chorioamnionitis in cases of premature rupture of membranes at or after 34 weeks of gestation: a two-center prospective study. BMC Pregnancy Childbirth 2011; 11:26. [PMID: 21470433 PMCID: PMC3088535 DOI: 10.1186/1471-2393-11-26] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2010] [Accepted: 04/07/2011] [Indexed: 12/16/2022] Open
Abstract
BACKGROUND Accurate prediction of infection, including maternal chorioamnionitis and early-onset neonatal infection, remains a critical challenge in cases of preterm rupture of membranes and may influence obstetrical management. The aim of our study was to investigate the predictive value for early-onset neonatal infection and maternal histological and clinical chorioamnionitis of maternal biological markers in routine use at or after 34 weeks of gestation in women with premature rupture of membranes. METHODS We conducted a two-center prospective study of all women admitted for premature rupture of membranes at or after 34 weeks of gestation. The association of C-reactive protein, white blood cell count, vaginal sample bacteriological results, and a prediction model at admission, for early-onset neonatal infection and maternal chorioamnionitis were analyzed by comparing areas under the receiver operating characteristic curves and specificity. RESULTS The study included 399 women. In all, 4.3% of the newborns had an early-onset neonatal infection and 5.3% of the women had clinical chorioamnionitis. Histological chorioamnionitis was detected on 10.8% of 297 placentas tested. White blood cell counts and C-reactive protein concentrations were significantly associated with early-onset neonatal infection and included in a prediction model. The area under the receiver operating characteristic curve of this model was 0.82 (95% CI [0.72, 0.92]) and of C-reactive protein, 0.80 (95% CI [0.68, 0.92]) (p = 1.0). Specificity was significantly higher for C-reactive protein than for the prediction model (48% and 43% respectively, p < 0.05). C-reactive protein was associated with clinical and histological chorioamnionitis, with areas under the receiver operating characteristic curve of 0.61 (95% CI [0.48, 0.74]) and 0.62 (95% CI [0.47, 0.74]), respectively. CONCLUSIONS The concentration of C-reactive protein at admission for premature rupture of membranes is the most accurate infectious marker for prediction of early-onset neonatal infection in routine use with a sensitivity > 90%. A useful next step would be a randomized prospective study of management strategy comparing CRP at admission with active management to assess whether this more individualized care is a safe alternative strategy in women with premature rupture of membranes at or after 34 weeks.
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Affiliation(s)
- Thomas Popowski
- Epidemiological Research Unit on Perinatal and Women's Health, INSERM U953, Paris, France
| | - François Goffinet
- Epidemiological Research Unit on Perinatal and Women's Health, INSERM U953, Paris, France
- Department of Obstetrics and Gynecology, Maternity Port-Royal, Cochin-Saint Vincent-de-Paul Hospital, Paris, France and University Paris V, Paris, France
| | - Françoise Maillard
- Epidemiological Research Unit on Perinatal and Women's Health, INSERM U953, Paris, France
| | - Thomas Schmitz
- Department of Obstetrics and Gynecology, Hôpital Robert Debré, Paris, France and University Paris VII, Paris, France
| | - Sandrine Leroy
- Epidemiological Research Unit on Perinatal and Women's Health, INSERM U953, Paris, France
- Centre for Statistics in Medicine University of Oxford, Oxford, UK
| | - Gilles Kayem
- Epidemiological Research Unit on Perinatal and Women's Health, INSERM U953, Paris, France
- Department of Obstetrics and Gynecology, CHI Creteil, Creteil, France
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Lecerf T, Reverte I, Coleaux L, Maillard F, Favez N, Rossier J. Indice d’aptitude général et indice de compétence cognitive pour le WISC-IV : normes empiriques versus normes statistiques. European Review of Applied Psychology 2011. [DOI: 10.1016/j.erap.2011.01.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Dubau L, Maillard F, Chatenet M, André J, Rossinot E. Nanoscale compositional changes and modification of the surface reactivity of Pt3Co/C nanoparticles during proton-exchange membrane fuel cell operation. Electrochim Acta 2010. [DOI: 10.1016/j.electacta.2010.09.038] [Citation(s) in RCA: 73] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Maillard F, Dubau L, Durst J, Chatenet M, André J, Rossinot E. Durability of Pt3Co/C nanoparticles in a proton-exchange membrane fuel cell: Direct evidence of bulk Co segregation to the surface. Electrochem commun 2010. [DOI: 10.1016/j.elecom.2010.06.007] [Citation(s) in RCA: 92] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Le Ray C, Maillard F, Carbonne B, Verspyck E, Cabrol D, Goffinet F. [Nifedipine or nicardipine in management of threatened preterm delivery: an observational population-based study]. ACTA ACUST UNITED AC 2010; 39:490-7. [PMID: 20627613 DOI: 10.1016/j.jgyn.2010.04.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2010] [Revised: 04/21/2010] [Accepted: 04/28/2010] [Indexed: 10/19/2022]
Abstract
OBJECTIVE For the first line tocolysis, calcium channel blockers (CCB)--oral nifedipine (Adalate®) or intravenous nicardipine (Loxen®)--are frequently used in France. No study compared nifedipine and nicardipine in management of threatened preterm delivery. From data of a French observational study, we compared factors associated with the use of nifedipine and nicardipine. Efficacy and tolerance of the two treatments were also compared. METHODS It was a secondary analysis of EVAPRIMA study, a practice survey describing management of threatened preterm delivery in 107 French maternity units. Only women who received calcium channel blockers in their first line tocolytic therapy were included. We studied obstetrical factors associated with the choice of nifedipine or nicardipine. We also analyzed factors associated with a delivery within seven days following admission using univariate and multivariate analysis. Adverse secondary effects were compared between women who received nifedipine or nicardipine. RESULTS Three hundred and four women received calcium channel blockers for their first line tocolytic therapy, in 73 maternity units: 93 (30.6%) women received oral nifedipine and 211 (69.4%) intravenous nicardipine. The same CCB was always prescribed in 69 maternity units. Admission after in utero transfer was less frequent among women who received nifedipine (6.5% versus 17.1%, P=0.01). Premature rupture of the membranes was also less frequent among women who received nifedipine (4.3% versus 13.7%, P=0.02), in comparison with women who received nicardipine. Median duration between admission for threatened preterm labor and delivery was longer when nifedipine was used (44 days versus 36 days, P=0.04). After adjustment on obstetrical factors, the risk to have a delivery within 7 days following admission was not significantly different between nifedipine and nicardipine groups (adjusted OR=0.5 [0.2-1.2]). Among women who received nifedipine only two cases (2.1%) of adverse event were reported with only one case needing a switch of treatment. Thirteen (6.2%) cases of adverse event were reported among women who received nicardipine (P=0.16); in three cases it motivated a switch. However, due to bias and limits inherent in such studies, our results should be interpreted cautiously. CONCLUSION Nicardipine is the first choice for French obstetricians in management of severe threatened preterm delivery. However, intravenous nicardipine does not increase gestational duration in comparison with oral nifedipine.
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Affiliation(s)
- C Le Ray
- Unité U953 (ex U149), recherche épidémiologique en santé périnatale et santé des femmes et des enfants, Inserm U953, université Pierre-et-Marie-Curie, 75014 Paris, France.
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Kayem G, Maillard F, Popowski T, Haddad B, Sentilhes L. Mesure de la longueur du col de l’utérus par voie endovaginale : technique et principales applications. ACTA ACUST UNITED AC 2010; 39:267-75. [PMID: 20381982 DOI: 10.1016/j.jgyn.2010.03.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2009] [Revised: 02/22/2010] [Accepted: 03/02/2010] [Indexed: 11/19/2022]
Affiliation(s)
- G Kayem
- Service de gynécologie obstétrique, centre hospitalier intercommunal de Créteil, 40, avenue de Verdun , 94000 Créteil, France.
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Concha BM, Chatenet M, Maillard F, Ticianelli EA, Lima FHB, de Lima RB. In situ infrared (FTIR) study of the mechanism of the borohydride oxidation reaction. Phys Chem Chem Phys 2010; 12:11507-16. [DOI: 10.1039/c003652h] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Kayem G, Maillard F, Schmitz T, Jarreau PH, Cabrol D, Breart G, Goffinet F. Prediction of clinical infection in women with preterm labour with intact membranes: A score based on ultrasonographic, clinical and biological markers. Eur J Obstet Gynecol Reprod Biol 2009; 145:36-40. [DOI: 10.1016/j.ejogrb.2009.03.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2008] [Revised: 03/10/2009] [Accepted: 03/30/2009] [Indexed: 11/25/2022]
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Kayem G, Maillard F. Rupture prématurée des membranes avant terme : attitude interventionniste ou expectative ? ACTA ACUST UNITED AC 2009; 37:334-41. [DOI: 10.1016/j.gyobfe.2009.03.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2009] [Accepted: 03/04/2009] [Indexed: 01/20/2023]
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Parant O, Maillard F, Tsatsaris V, Delattre M, Subtil D, Goffinet F. Management of threatened preterm delivery in France: a national practice survey (the EVAPRIMA study). BJOG 2009; 115:1538-46. [PMID: 19035990 DOI: 10.1111/j.1471-0528.2008.01929.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To describe the management of threatened preterm delivery (TPD) in France 3 years after publication of the French guidelines and to analyse the factors of variation of the practices observed. DESIGN Population-based study. SETTING Representative sample of French maternity units. The study included 107 hospitals, accounting for 20% of all French maternity units. POPULATION Women hospitalised for TPD during May 2005. METHODS Cross-sectional national practice survey. RESULTS Of the 734 admissions for TPD, 12.1% involved premature rupture of membranes and 12.9% were in utero transfers. Women admitted for TPD accounted for roughly 6% of all annual deliveries, regardless of the unit's level of care, and 42.4% of these women delivered preterm: none delivered before 32 weeks in level 1 maternity units, 11.6% in level 2 and 88.4% in level 3. Transvaginal cervical ultrasound was performed for 54.5% of the women with intact membranes. Tocolysis was administered in 87.1% of women with intact membranes, with 45.6% of such women receiving this intervention for longer than 48 hours. First-line tocolytics used were calcium channel blockers (53.7%), beta-agonists (34.7%) or atosiban (8.8%), but their distribution differed substantially according to level of care. Maintenance tocolysis was administered to 385 women (59.8%) with intact membranes. Of the women admitted before 34 weeks, 21.1% did not receive corticosteroids. CONCLUSIONS Practices for the management of TPD vary widely and appear to depend on the level of care. Some practices appear less than optimal, especially those related to duration of tocolysis, maintenance tocolysis, antenatal corticosteroid and use of cervical ultrasound.
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Affiliation(s)
- O Parant
- Services de Gynécologie Obstétrique, Hôpital Paule-de-Viguier, Toulouse, France
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Schmitz T, Kayem G, Maillard F, Lebret MT, Cabrol D, Goffinet F. Selective use of sonographic cervical length measurement for predicting imminent preterm delivery in women with preterm labor and intact membranes. Ultrasound Obstet Gynecol 2008; 31:421-426. [PMID: 18383461 DOI: 10.1002/uog.5297] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVES To determine, in a population of women with preterm labor and intact membranes, whether ultrasound cervical length measurement performed only in patients selected according to the Bishop score predicts imminent preterm delivery better than does systematic cervical length measurement in the entire population. METHODS The Bishop score and sonographic cervical length were recorded prospectively in women with preterm labor between 24 and 34 completed weeks' gestation. Outcome measures were preterm delivery within 48 h and within 7 days. Predictive values were calculated for each marker separately and then in combination. RESULTS Of the study population of 395 women, 17 (4.3%) and 32 (8.1%) delivered within 48 h and within 7 days, respectively, following inclusion. For delivery within 7 days, areas under the Bishop score (0.848) and sonographic cervical length (0.813) receiver-operating characteristics curves did not differ significantly. For the selective use of sonographic cervical length measurement in patients selected according to the Bishop score, the test was considered positive if the Bishop score was >or= 8, or 4-7 with cervical length <or= 30 mm. This test was as sensitive (94%) but more specific (60% vs. 42%, P < 0.001) for predicting preterm birth within 7 days than was sonographic cervical length with a 30-mm cut-off value in the entire population. Results were similar for delivery within 48 h. CONCLUSION For predicting imminent preterm delivery in women with preterm labor, measuring sonographic cervical length only in patients with a Bishop score between 4 and 7, compared with a strategy of systematic measurement in the entire population, reduces by 30% the number of false positives and might thus decrease unnecessary therapeutic intervention.
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Affiliation(s)
- T Schmitz
- Maternité Port-Royal, Hopital Cochin, AP-HP, Université Paris Descartes, Paris, France.
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Hahn F, Mathis YL, Bonnefont A, Maillard F, Melendres CA. In situ synchrotron far-infrared spectromicroscopy of a copper electrode at grazing incidence angle. J Synchrotron Radiat 2007; 14:446-8. [PMID: 17717388 DOI: 10.1107/s0909049507029809] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2006] [Accepted: 06/18/2007] [Indexed: 05/16/2023]
Abstract
Synchrotron far-infrared spectroscopy in situ was successfully carried out on a copper microelectrode using a grazing-angle objective attached to a Bruker IRscope II microscope. The thin-layer spectroelectrochemical cell was constructed out of Teflon and fitted with a 20 microm-thick Mylar window; the copper electrode was 500 microm in diameter. Measurements were carried out in 0.1 M NaOH solution as a function of applied potential between -1.4 and 0 V versus a Hg/Hg2SO(4) reference electrode. Results demonstrate that with the present technique it is possible to obtain in situ spectra with excellent signal-to-noise ratio for surface oxide films formed electrochemically with less than 1 nL of active solution volume. The surface film on copper at 0 V consisted mainly of CuO with possibly some Cu(OH)2 also present. This interpretation is consistent with previous works and thermodynamic calculations.
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Affiliation(s)
- F Hahn
- UMR 6503, CNRS, Université de Poitiers, 40 avenue du Recteur Pineau, F-86022 Poitiers, France
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Maillard F, Peyrelade E, Soldo-Olivier Y, Chatenet M, Chaînet E, Faure R. Is carbon-supported Pt-WOx composite a CO-tolerant material? Electrochim Acta 2007. [DOI: 10.1016/j.electacta.2006.08.024] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Goffinet F, Kayem G, Maillard F, Trébéden H, Cabrol D, Weill B, Batteux F. Detection of interleukin 6 mRNA by RT-PCR in vaginal secretions: association with preterm delivery and neonatal infection in women with preterm labour and intact membranes. Eur J Obstet Gynecol Reprod Biol 2006; 123:167-73. [PMID: 15893869 DOI: 10.1016/j.ejogrb.2005.03.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2004] [Revised: 11/12/2004] [Accepted: 03/25/2005] [Indexed: 11/30/2022]
Abstract
OBJECTIVE To find a biological marker associated with preterm delivery or neonatal infection in pregnant women with preterm labour and intact membranes. STUDY DESIGN Cervical secretions were collected from 286 women hospitalized for preterm labour with intact membranes at 24-34 weeks' gestation. The outcomes studied were delivery before 33 and 35 weeks' gestation, chorioamnionitis, and neonatal infection, and their association with the presence of IL-6 mRNA in cervical secretions as detected by RT-PCR. The other infectious markers tested were: bacterial vaginosis and fetal fibronectin in cervical secretions; serum CRP and white blood cell count. RESULTS The vaginal secretions of 13 of 286 women (4.7%) contained IL-6 mRNA. The only other marker tested significantly associated with IL-6 mRNA+ was the presence of streptococcus in vaginal secretions (30.8% versus 9.4% in the IL-6+ and-groups, p = 0.03). Although the difference did not reach statistical significance (p<0.06 and 0.08, respectively), in women with IL-6 mRNA in cervical secretions we observed a tendency to give birth before 33 and 35 weeks more often than the population as a whole. This group was at higher risk of neonatal infection (38.5% versus 15.1%; p = 0.04). After adjustment for infectious risk factors, IL-6 remained significantly associated with neonatal infection (OR = 4.6, 95% CI [1.1-18.9]). The sensitivity of IL-6 mRNA for neonatal infection was 11.1%. The specificity was 96.7%. CONCLUSION The detection of IL-6 mRNA by RT-PCR in vaginal secretions allows identification of a small group of women at high risk of neonatal infection, independently of other markers of infection.
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Affiliation(s)
- François Goffinet
- Department of Obstetrics and Gynecology, Maternity Port-Royal, Cochin-Saint Vincent-de-Paul Hospital, University Paris V, 123 Bd de Port-Royal, 75014 Paris, France.
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Schmitz T, Maillard F, Bessard-Bacquaert S, Kayem G, Fulla Y, Cabrol D, Goffinet F. Selective use of fetal fibronectin detection after cervical length measurement to predict spontaneous preterm delivery in women with preterm labor. Am J Obstet Gynecol 2006; 194:138-43. [PMID: 16389023 DOI: 10.1016/j.ajog.2005.05.074] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2005] [Revised: 04/18/2005] [Accepted: 05/18/2005] [Indexed: 11/29/2022]
Abstract
OBJECTIVE The purpose of this study was to determine whether selective use of fetal fibronectin detection after ultrasound measurement of cervical length predicts preterm delivery in symptomatic patients better than either indicator alone. STUDY DESIGN This prospective blinded study performed both tests on 359 women hospitalized for preterm labor between 18 and 34 completed weeks' gestation. The primary outcome was preterm delivery before 35 weeks'gestation. RESULTS Among the 359 women included, 48 (13.4%) delivered before 35 weeks' gestation. The sensitivity, specificity, and positive and negative predictive values of cervical length < or = 25 mm were 75%, 63%, 24%, and 94%, respectively, and of fetal fibronectin > or = 50 ng/mL, 63%, 81%, 33%, and 93%. Fetal fibronectin detection was significantly (P < .001) more specific than cervical length measurement. For selective use of fetal fibronectin detection after cervical length measurement, the test was considered positive if cervical length was < or = 15 mm or if cervical length was between 16 and 30 mm with fetal fibronectin > or = 50 ng/mL. The predictive values of this test were not significantly different from those of fetal fibronectin detection (67%, 81%, 36%, and 94%). This strategy could have avoided 200 fibronectin tests. CONCLUSION Selective use of fetal fibronectin detection after cervical length measurement is more specific than cervical length and as effective as fetal fibronectin assays in the entire population of women in preterm labor for predicting preterm birth.
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Vayssière C, Favre R, Audibert F, Chauvet MP, Gaucherand P, Tardif D, Grangé G, Novoa A, Descamps P, Perdu M, Andrini E, Janse-Marec J, Maillard F, Nisand I. Cervical assessment at 22 and 27 weeks for the prediction of spontaneous birth before 34 weeks in twin pregnancies: is transvaginal sonography more accurate than digital examination? Ultrasound Obstet Gynecol 2005; 26:707-12. [PMID: 16273595 DOI: 10.1002/uog.2616] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
OBJECTIVES This study compared the accuracy of ultrasound cervical assessment (cervical length and cervical index) and digital examination (Bishop score and cervical score) in the prediction of spontaneous birth before 34 weeks in twin pregnancies. METHODS In a prospective multicenter study, digital examination and transvaginal sonography were performed consecutively in twin pregnancies attending for routine sonography at either 22 weeks (175 women) or 27 weeks (153 women). The digital examination took place first, and the Bishop score and cervical score (cervical length minus cervical dilatation) were calculated. Ultrasound measurements were then made of cervical length and funnel length to yield the cervical index (1 + funnel length/cervical length). The association between each variable and delivery before 34 weeks was tested by the Mann-Whitney U-test. The receiver-operating characteristics (ROC) curves of the ultrasound and digital indicators were determined for both gestational age periods, and the areas under the ROC curves compared. The best cut-off values for each indicator were used to determine predictive values for delivery before 34 weeks. RESULTS The median gestational age at delivery among the women included in the 22-week examination period was 36.0 (range, 21-40) weeks; 10.9% (19) gave birth spontaneously before 34 weeks. The median cervical length was 40 (range, 6-65) mm. All four parameters were predictors of delivery before 34 weeks. The areas under the ROC curves for cervical index, cervical length, Bishop score and cervical score did not differ significantly. The median gestational age at delivery among the women in the 27-week examination period was 36.0 (range, 27-40) weeks; 9.2% (14) gave birth spontaneously before 34 weeks. The median cervical length was 35 (range, 1-57) mm. All parameters except the Bishop score were predictors of delivery before 34 weeks. The likelihood ratio of the positive and negative tests for cervical length < or = 25 mm was 5.4 (range, 3.2-9.0) and 0.3 (range, 0.1-0.7), respectively, compared with 2.3 (range, 1.3-4.2) and 0.6 (range, 0.3-1.1), respectively, for cervical score < or = 1. The area under the curve for the cervical index was significantly larger than that for the Bishop score (P = 0.008) or cervical score (P = 0.02). CONCLUSION Transvaginal sonography predicted spontaneous delivery before 34 weeks better than digital examination at the 27-week but not the 22-week examination.
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Affiliation(s)
- C Vayssière
- Department of Obstetrics and Gynecology, CHI Leon Touhladjian, Paris V University, Poissy, France.
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Maillard F, Lu GQ, Wieckowski A, Stimming U. Ru-Decorated Pt Surfaces as Model Fuel Cell Electrocatalysts for CO Electrooxidation. J Phys Chem B 2005; 109:16230-43. [PMID: 16853064 DOI: 10.1021/jp052277x] [Citation(s) in RCA: 221] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This feature article concerns Pt surfaces modified (decorated) by ruthenium as model fuel cell electrocatalysts for electrooxidation processes. This work reveals the role of ruthenium promoters in enhancing electrocatalytic activity toward organic fuels for fuel cells, and it particularly concerns the methanol decomposition product, surface CO. A special focus is on surface mobility of the CO as it is catalytically oxidized to CO(2). Different methods used to prepare Ru-decorated Pt single crystal surfaces as well as Ru-decorated Pt nanoparticles are reviewed, and the methods of characterization and testing of their activity are discussed. The focus is on the origin of peak splitting involved in the voltammetric electrooxidation of CO on Ru-decorated Pt surfaces, and on the interpretative consequences of the splitting for single crystal and nanoparticle Pt/Ru bimetallic surfaces. Apparently, screening through the literature allows formulating several models of the CO stripping reaction, and the validity of these models is discussed. Major efforts are made in this article to compare the results reported by the Urbana-Champaign group and the Munich group, but also by other groups. As electrocatalysis is progressively more and more driven by theory, our review of the experimental findings may serve to summarize the state of the art and clarify the roads ahead. Future studies will deal with highly dispersed and reactive nanoscale surfaces and other more advanced catalytic materials for fuel cell catalysis and related energy applications. It is expected that the metal/metal and metal/substrate interactions will be increasingly investigated on atomic and electronic levels, with likewise increasing participation of theory, and the structure and reactivity of various monolayer catalytic systems involving more than two metals (that is ternary and quaternary systems) will be interrogated.
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Affiliation(s)
- F Maillard
- Laboratoire d'Electrochimie et de Physicochimie des Matériaux et des Interfaces, UMR CNRS 5631, ENSEEG, BP75, 38402 Saint Martin d'Hères, France
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Moreau C, Kaminski M, Ancel PY, Bouyer J, Escande B, Thiriez G, Boulot P, Fresson J, Arnaud C, Subtil D, Marpeau L, Rozé JC, Maillard F, Larroque B. Previous induced abortions and the risk of very preterm delivery: results of the EPIPAGE study. BJOG 2005; 112:430-7. [PMID: 15777440 DOI: 10.1111/j.1471-0528.2004.00478.x] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To evaluate the risk of very preterm birth (22-32 weeks of gestation) associated with previous induced abortion according to the complications leading to very preterm delivery in singletons. DESIGN Multicentre, case-control study (the French EPIPAGE study). SETTING Regionally defined population of births in France. SAMPLE The sample consisted of 1943 very preterm live-born singletons (< 33 weeks of gestation), 276 moderate preterm live-born singletons (33-34 weeks) and 618 unmatched full-term controls (39-40 weeks). METHODS Data from the EPIPAGE study were analysed using polytomous logistic regression models to control for social and demographic characteristics, lifestyle habits during pregnancy and obstetric history. The main mechanisms of preterm delivery were classified as gestational hypertension, antepartum haemorrhage, fetal growth restriction, premature rupture of membranes, idiopathic preterm labor and other causes. MAIN OUTCOME MEASURES Odds ratios for very preterm birth by gestational age and by pregnancy complications leading to preterm delivery associated with a history of induced abortion. RESULTS Women with a history of induced abortion were at higher risk of very preterm delivery than those with no such history (OR + 1.5, 95% CI 1.1-2.0); the risk was even higher for extremely preterm deliveries (< 28 weeks). The association between previous induced abortion and very preterm delivery varied according to the main complications leading to very preterm delivery. A history of induced abortion was associated with an increased risk of premature rupture of the membranes, antepartum haemorrhage (not in association with hypertension) and idiopathic spontaneous preterm labour that occur at very small gestational ages (< 28 weeks). Conversely, no association was found between induced abortion and very preterm delivery due to hypertension. CONCLUSION Previous induced abortion was associated with an increased risk of very preterm delivery. The strength of the association increased with decreasing gestational age.
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Affiliation(s)
- Caroline Moreau
- Epidemiological Research Unit on Perinatal and Women's Health, INSERM U149, Villejuif, France
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Maillard F, Schreier S, Hanzlik M, Savinova ER, Weinkauf S, Stimming U. Influence of particle agglomeration on the catalytic activity of carbon-supported Pt nanoparticles in CO monolayer oxidation. Phys Chem Chem Phys 2005. [DOI: 10.1039/b411377b] [Citation(s) in RCA: 334] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kayem G, Maillard F, Batteux F, Weill B, Cabrol D, Goffinet F. Interleukin-8 mRNA in vaginal secretions: a prenatal marker of congenital infection in case of preterm labor with intact membranes. Prenat Diagn 2004; 24:58-62. [PMID: 14755411 DOI: 10.1002/pd.795] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
OBJECTIVE To study whether interleukin-8 (IL-8) mRNA in vaginal secretions is associated with congenital infection and preterm delivery in the case of preterm labor with intact membranes. METHODS This prospective clinical study in a tertiary referral center included 280 patients who gave birth to 360 infants from 1997 through 1999. IL-8 mRNA in vaginal secretions was determined with reverse transcriptase polymerase chain reaction. Logistic regression was used to examine the association between vaginal IL-8 mRNA and congenital infection independently of the time of birth. Main outcome measures were congenital infection and delivery before 37 and 33 weeks' gestation. RESULTS A total of 100 women (100/280 (35.7%)) gave birth before 37 weeks. A total of 54 children (54/360 (15%)) had congenital infection. IL-8 mRNA in vaginal secretions was associated with delivery within 14 days of the sampling (24 (15.6%) vs. 7 (5.6%) p < 0.01), but not with delivery within 48 h, 7 days (p = 0.07) or before 37 or 33 weeks. There were more congenital infections in the group with detectable IL-8 mRNA (37 (19.3%) than in the negative group (17 (10.1%); p < 0.05). IL-8 mRNA was associated with congenital infection independently of the time of birth (OR: 2.6 (1.3-5.1)). This test had a sensitivity for predicting neonatal infection of 69%. Its specificity was 49%, its positive predictive value 19%, and its negative predictive value 90%. CONCLUSION IL-8 mRNA could be a prenatal noninvasive vaginal marker of congenital infection.
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Affiliation(s)
- G Kayem
- Department of Obstetrics and Gynaecology, Maternity Port-Royal, Cochin-Saint Vincent-de-Paul Hospital APHP, René Descartes University (Paris V), Paris, France.
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Larroque B, Bréart G, Kaminski M, Dehan M, André M, Burguet A, Grandjean H, Ledésert B, Lévêque C, Maillard F, Matis J, Rozé JC, Truffert P. Survival of very preterm infants: Epipage, a population based cohort study. Arch Dis Child Fetal Neonatal Ed 2004; 89:F139-44. [PMID: 14977898 PMCID: PMC1756022 DOI: 10.1136/adc.2002.020396] [Citation(s) in RCA: 243] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To evaluate the outcome for all infants born before 33 weeks gestation until discharge from hospital. DESIGN A prospective observational population based study. SETTING Nine regions of France in 1997. PATIENTS All births or late terminations of pregnancy for fetal or maternal reasons between 22 and 32 weeks gestation. MAIN OUTCOME MEASURE Life status: stillbirth, live birth, death in delivery room, death in intensive care, decision to limit intensive care, survival to discharge. RESULTS A total of 722 late terminations, 772 stillbirths, and 2901 live births were recorded. The incidence of very preterm births was 1.3 per 100 live births and stillbirths. The survival rate for births between 22 and 32 weeks was 67% of all births (including stillbirths), 85% of live births, and 89% of infants admitted to neonatal intensive care units. Survival increased with gestational age: 31% of all infants born alive at 24 weeks survived to discharge, 78% at 28 weeks, and 97% at 32 weeks. Survival among live births was lower for small for gestational age infants, multiple births, and boys. Overall, 50% of deaths after birth followed decisions to withhold or withdraw intensive care: 66% of deaths in the delivery room, decreasing with increasing gestational age; 44% of deaths in the neonatal intensive care unit, with little variation with gestational age. CONCLUSION Among very preterm babies, chances of survival varies greatly according to the length of gestation. At all gestational ages, a large proportion of deaths are associated with a decision to limit intensive care.
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Affiliation(s)
- B Larroque
- Epidemiological Research Unit on Perinatal and Women's Health, U149 INSERM Villejuif, France.
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