ArticleRevista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia2021
Risk Factors for Postpartum Hemorrhage and its Severe Forms with Blood Loss Evaluated Objectively - A Prospective Cohort Study.
Article in Revista brasileira de ginecologia e obstetricia : revista da Federacao Brasileira das Sociedades de Ginecologia e Obstetricia, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.
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11 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.
- Hemostatic biomarkers associated with postpartum hemorrhage: a systematic review and meta-analysis.Blood advances · 2023Pooled it
- Trial
- Interventions following routine hemoglobin assessment after vaginal delivery.Pregnancy (Hoboken, N.J.) · 2026Article
- Selective episiotomy guided by a perineal evaluation form for forceps-assisted vaginal delivery: a retrospective cohort study on maternal and neonatal outcomes.BMC pregnancy and childbirth · 2026Article
- Development and validation of a postpartum hemorrhage risk prediction model for advanced maternal age women undergoing vaginal delivery: a comparison of multiple machine learning algorithms.Frontiers in medicine · 2026Article
- Risk factors and prediction model for massive transfusion during cesarean section in singleton pregnancies with anterior placenta previa, prior caesarean and prenatal suspicion of placenta accreta spectrum: a retrospective case-control study.BMC pregnancy and childbirth · 2025Article
- Evaluating predelivery platelet and coagulation indices as predictors of immediate postpartum haemorrhage in low-risk women undergoing vaginal delivery.BMC pregnancy and childbirth · 2025Article
- Nomogram based on clinical characteristics and ultrasound indicators for predicting severe postpartum hemorrhage in patients with anterior placenta previa combined with previous cesarean section: a retrospective case-control study.BMC pregnancy and childbirth · 2024Article
- Factors associated with severe maternal outcome in patients admitted to an intensive care unit in northeastern Brazil with postpartum hemorrhage: a retrospective cohort study.BMC pregnancy and childbirth · 2023Article
- The use of IVF/ICSI and risk of postpartum hemorrhage: A retrospective cohort study of 153,765 women in China.Frontiers in public health · 2023Article
- Prevalence of risk factors for primary postpartum hemorrhage in a university hospital.Revista brasileira de enfermagem · 2023Article
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Authors and funding
3 authors at 1 institution in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
objectiveTo identify risk factors related to postpartum hemorrhage (PPH) and severe PPH with blood loss quantified objectively.
methodsThis is a complementary analysis of a prospective cohort study that included pregnant women delivering vaginally. The total blood loss was obtained through the sum of the volume collected from the drape with the weight of gauzes, compresses and pads used by women within 2 hours. Exploratory data analysis was performed to assess mean, standard deviation (SD), frequency, percentage and percentiles. The risk factors for postpartum bleeding were evaluated using linear and logistic regression.
resultsWe included 270 women. The mean blood loss at 120 minutes was 427.49 mL (±335.57 mL). Thirty-one percent (84 women) bled > 500 mL and 8.2% (22 women) bled > 1,000 mL within 2 hours. Episiotomy, longer second stage of labor and forceps delivery were related to blood loss > 500 mL within 2 hours, in the univariate analysis. In the multivariate analysis, only forceps remained associated with bleeding > 500 mL within 2 hours (odds ratio [OR] = 9.5 [2.85-31.53]). Previous anemia and episiotomy were also related to blood loss > 1,000mL.
conclusionProlonged second stage of labor, forceps and episiotomy are related to increased incidence of PPH, and should be used as an alert for the delivery assistants for early recognition and prompt treatment for PPH.
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