Early Detection of Chorioamnionitis in Preterm Premature Rupture of Membranes (AiRPM)
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|ClinicalTrials.gov Identifier: NCT02901795|
Recruitment Status : Recruiting
First Posted : September 15, 2016
Last Update Posted : September 11, 2018
|Condition or disease|
|Fetal Membranes, Premature Rupture|
Preterm Premature Rupture Of Membranes (pPROM) complicates 2-3% of all pregnancies and is responsible for one-third of preterm birth. Since the membranes generally form a barrier to ascending infection, the second major complication (10-36%) of pPROM is the development of intrauterine infection, called chorioamnionitis. It involves infection/inflammation of the fetus and increases neonatal morbidity and mortality. Indeed, histological chorioamnionitis (microscopic evidence of polynuclear neutrophils on examination of the placenta), regardless the prematurity, creates an inflammatory fetal syndrome which is responsible for an increase rate of cerebral palsy, intracranial hemorrhage, sepsis, pneumonia, respiratory distress syndrome and necrotizing enterocolitis at birth.
During hospitalization, management of women who develop pPROM requires an individual assessment of the benefits and risks of continuing pregnancy versus immediate delivery to avoid chorioamnionitis. Numerous studies in recent years have failed to identify a satisfactory prenatal marker of infection to predict chorioamnionitis. It is now clearly recognized that new markers are needed to improve prediction of infection in cases of pPROM.
A retrospective study (under submission) based on 23 pregnant women with pPROM was performed in the University Hospital of Rennes between 2007 and 2012. For all the patients included, a computerized analysis of the fetal heart rate (Sonicaïd FetalCare Oxford 8002®) has been performed daily during the last six days before delivery and the last recording was made less than 24 hours before the delivery. This study found significant differences of fetal heart rate patterns from pPROM complicated by histological chorioamnionitis compared with pPROM without histological chorioamnionitis. Short term variation (p=0,003) and high variation episodes (p<0,001) decreased significantly in pPROM complicated by histological chorioamnionitis. An index based on the high variations episodes was performed and seems a promising tool for the early detection of chorioamnionitis during pPROM (sensitivity 90%, specificity 84.6%, positive predictive value 71.5%, negative predictive value 95.2%, AUC = 0.88, IC 95% 0.73 to 100).
These data are consistent with those observed in neonatology for the assessment of early-onset sepsis and the underlying pathophysiological mechanisms (decreased fetal heart rate variability and adaptability in response to the placental infection/inflammation). Therefore, fetal heart rate (FHR) characteristics could be a potential way of research still unexploited for the early detection of chorioamnionitis in cases of pPROM.
|Study Type :||Observational|
|Estimated Enrollment :||80 participants|
|Official Title:||Fetal Heart Rate Variability Analysis for the Early Detection of Chorioamnionitis During Preterm Premature Rupture of Membranes|
|Study Start Date :||December 2014|
|Estimated Primary Completion Date :||December 2020|
|Estimated Study Completion Date :||April 2021|
- The performance indicator [ Time Frame: up to delivery ]area under ROC curve of the high variation index for the early diagnosis of histologically proven chorioamnionitis during pPROM.
- The performance indicator [ Time Frame: up to delivery ]sensibility, specificity of the high variation index for the early diagnosis of histologically proven chorioamnionitis during pPROM.
- The performance indicator [ Time Frame: up to delivery ]positive predictive value of the high variation index for the early diagnosis of histologically proven chorioamnionitis during pPROM.
- The performance indicator [ Time Frame: up to delivery ]negative predictive value of the high variation index for the early diagnosis of
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02901795
|Contact: Agnes Gazzolafirstname.lastname@example.org|
|CHU Rennes Hôpital Sud||Recruiting|
|Rennes, Bretagne, France, 35000|
|Contact: Linda Lassel, MD email@example.com|
|Service de Gynecologie obstétrique||Not yet recruiting|
|Angers, France, 49933|
|Contact: Pierre-Emmanuel BOUET, MD|
|Service de gynecologique-obstétrique||Not yet recruiting|
|Nantes, France, 44093|
|Contact: Vincent DOCHEZ, MD|
|Service de Gynecologie Obstétrique||Not yet recruiting|
|Poitiers, France, 86021|
|Contact: Fabrice PIERRE, MD|
|Principal Investigator:||Laurent Vandenbroucke, MD||CHU Rennes Hopital Sud|