Trial reportBJOG : an international journal of obstetrics and gynaecology2025
Intrauterine Contraction Monitoring in Chorioamnionitis: A Secondary, Blinded Analysis of a Randomised Controlled Trial Cohort.
Trial report in BJOG : an international journal of obstetrics and gynaecology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Maternal fever during labor and the risk of neonatal encephalopathy: duration and magnitude of hyperthermia.American journal of obstetrics and gynecology · 2025Article
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Authors and funding
4 authors.
Funding
Abstract
objectiveTo study the effects of chorioamnionitis on uterine activity and to investigate associations between external and intrauterine monitoring methods and neonatal outcomes.
designSecondary analysis of a randomised controlled trial cohort.
settingTwo labour wards, in a university tertiary hospital and a central hospital. POPULATION: Parturients with singleton pregnancies, gestational age ≥ 37 weeks and fetus in cephalic position. Clinical chorioamnionitis developed in 8.6% of cases (n = 130/1504).
methodsAnalyses of uterine activity (contractions/10 min or intrauterine pressure in Montevideo units) during the 4 h before birth adjusted for maternal characteristics and intrapartum factors.
main outcome measuresUterine activity with or without chorioamnionitis and the intervention of external versus intrauterine monitoring in relation to fetal distress (admission to neonatal intensive care with umbilical artery pH ≤ 7.10 or 5-min Apgar score < 7), stratified by chorioamnionitis status.
resultsUterine contraction frequency/10 min decreased in labours with chorioamnionitis during the final hour preceding birth (4.2 [SD 1.1] vs. 3.9 [SD 1.2], adjusted regression coefficient -0.383, 95% CI -0.654 to -0.112, p = 0.006) compared to non-infected labors. In chorioamnionitis cases, mean frequency/10 min during last 4 h was higher with external versus intrauterine monitoring (4.2 [SD 0.8] vs. 3.8 [SD 0.9], MD 0.39, 95% CI 0.02-0.76, p = 0.038), and the intrauterine monitoring group had a lower incidence of fetal distress (6.7% vs. 23.1%, OR 0.24, 95% CI 0.07-0.79, p = 0.013).
conclusionsChorioamnionitis impairs uterine activity. Intrauterine monitoring may provide more accurate contraction analysis than external tocodynamometry and help reduce fetal compromise during labours complicated by chorioamnionitis.
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