ArticleInternational journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics2025
Novel risk factors associated with retained placenta after vaginal birth.
Article in International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed.
- Article
- Novel risk factors associated with retained placenta after vaginal birth.International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics · 2025Article
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5 authors.
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Abstract
objectiveTo evaluate maternal and obstetric risk factors associated with retained placenta following singleton live vaginal births.
methodsWe conducted a retrospective cohort study of women diagnosed with retained placenta after singleton live vaginal birth at or after 24 weeks of gestation, compared in a 1:2 ratio with women who had uncomplicated vaginal deliveries. The study and control groups were matched for maternal age, gestational age, and parity. Multivariate regression analysis assessed potential risk factors related to retained placenta.
resultsIn all, 15,260 women who delivered at our medical center(both vaginal and non-vaginal)between 2015 and 2022, 170 (1.1%) were diagnosed with retained placenta. Ninety-nine women (0.65%) who met the inclusion criteria were matched with 198 controls (1.3%). Multivariate logistic regression identified potential risk factors not previously described for retained placenta, including in vitro fertilization (OR 3.8, 95% CI 1.3-11.7, P = 00.018), large-for-gestational-age fetuses (OR 28.2, 95% CI 5.4-148.5, P = 00.029), and endometriosis (OR 8.2, 95% CI 0.92-20, P = 00.024). Additional risk factors included pre-eclampsia, labor induction, vacuum-assisted delivery, and prolonged second-stage labor.
conclusionThis study identifies critical risk factors for retained placenta, highlighting the importance of early identification to improve maternal and neonatal outcomes.
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