ArticleBMC pregnancy and childbirth2024
Risk factors of severe postpartum hemorrhage in pregnant women with placenta previa or low-lying placenta: a retrospective cohort study.
Article in BMC pregnancy and childbirth, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Prophylactic tranexamic acid for the prevention of postpartum haemorrhage in women with placenta praevia: multicentre, double blind, randomised, placebo controlled, phase 3 trial.BMJ (Clinical research ed.) · 2026Trial
- Low-lying placenta is associated with increased risk of hemorrhage and severe maternal morbidity: A nationwide analysis.Pregnancy (Hoboken, N.J.) · 2026Article
- Article
- Strategies for streamlining uterine topographic classification in placenta accreta spectrum.AJOG global reports · 2026Article
- Risk Factors for Severe Postpartum Hemorrhage in Vaginal Delivery: A Retrospective Cohort Study.Maternal-fetal medicine (Wolters Kluwer Health, Inc.) · 2026Article
- Risk Factors and Clinical Outcomes of Abnormal Placental Localization:Saudi medical journal · 2026Article
- Hemostatic compression treatment of central placenta previa with modified Cho suture.Journal of surgical case reports · 2025Article
- Abnormal microRNA expression profile at early stages of gestation in pregnancies destined to develop placenta previa.Frontiers in medicine · 2024Article
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7 authors.
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No grant is acknowledged in the PubMed record.
Abstract
backgroundThe severe postpartum hemorrhage (SPPH) leads to dangerous maternal conditions, and its rate is still increasing and the trend in related risk factors is changing. Placenta-related problems remain the high-risk factor for SPPH. The object is to investigate the prevalence and the risk factors of the severe postpartum hemorrhage in pregnant women with placenta previa or low-lying placenta.
methodA retrospective analysis of pregnant women with placenta previa or low-lying placenta after 28 weeks gestation from May 2018 to May 2023 in the Peking Union Medical College Hospital was conducted. The primary outcome was severe postpartum hemorrhage defined as blood loss ≥ 1000 mL within 24 h of childbirth, or with signs or symptoms of low blood volume requiring transfusion of ≥ 4U of red blood cells. Univariate and multivariate logistic regression were used to identify potential risk factors of severe postpartum hemorrhage and receiver operating curve to evaluate the prediction performance.
resultsOf the 14,964 women, 201 met the inclusive criteria. SPPH rate was 1.3% overall and 18.9% in women with placenta previa or low-lying placenta. Weight (aOR = 0.93, 95%CI 0.87-0.99), increta or percreta placenta (aOR = 7.93, 95%CI 2.53-24.77) were the risk factors. The area under the ROC curve was 0.69(95%CI 0.59-0.80) for increta or percreta placenta alone, and 0.72(95%CI 0.62-0.82) for the combination of times of cesarean sections and anterior placenta.
conclusionsPlacenta accreta spectrum was the key independent risk factor of SPPH in women with placenta previa or low-lying placenta. Antenatal risk assessment of SPPH in these population is highly desirable and optimal intervention could be planned.
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