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Cited by 117Maternal and fetal healthcareBlood transfusion and managementPregnancy and preeclampsia studies

The Incidence of Postpartum Hemorrhage in Pregnant Women with Placenta Previa: A Systematic Review and Meta-Analysis

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Fan, Dazhi, Xia, Qing, Liu, Li, Wu, Shuzhen, Tian, Guo, Wang, Wen, Wu, Song, Guo, Xiaoling +1 more·2017·PLOS ONE
DOI 10.1371/journal.pone.0170194PMC PMC5249070
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Abstract

BACKGROUND: The global burden of postpartum hemorrhage (PPH) in women with placenta previa is a major public health concern. Although there are different reports on the incidence of PPH in different countries, to date, no research has reviewed them. OBJECTIVE: The aim of this study was to calculate the average point incidence of PPH in women with placenta previa. METHODS: A systematic review and meta-analysis of observational studies estimating PPH in women with placenta previa was conducted through literature searches in four databases in Jul 2016. This study was totally conducted according to the MOOSE guidelines and in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses standard. RESULTS: From 1148 obtained studies, 11 included in the meta-analysis, which involved 5146 unique pregnant women with placenta previa. The overall pooled incidence of PPH was 22.3% (95% CI 15.8-28.7%). In the subgroup, the prevalence was 27.4% in placenta previas, and was 14.5% in low-lying placenta previa; the highest prevalence was estimated in Northern America (26.3%, 95%CI 11.0-41.6%), followed by the Asia (20.7%, 95%CI 12.8-28.6%), Australia (19.2%, 95% CI 17.2-21.1%) and Europe (17.8%, 95% CI, 11.5%-24.0%). CONCLUSIONS: The summary estimate of the incidence of PPH among women with placenta previa was considerable in this systematic review. The results will be crucial in prevention, treatment, and identification of PPH among pregnant women with placenta previa and will be contributed to the planning and implantation of relevant public health strategies.

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  • Placenta previa and low-lying placenta are associated with severe obstetric risks caused by blood loss in the third trimester and during delivery.

    “Placenta previa and, to a lesser extent, low-lying placenta are associated with severe obstetric risks caused by blood loss in the third trimester and during delivery (Fan et al. 2017; Jansen et al. 2019).”

    From Automatic Placenta Localization From Ultrasound Imaging in a Resource-Limited Setting Using a Predefined Ultrasound Acquisition Protocol and Deep Learning (2022) · cites this paper as Fan et al. 2017

    The Results and Discussion (page unavailable) report postpartum hemorrhage in women with placenta previa and a lower incidence in those with low-lying placenta, supporting the relative-risk point. The paper addresses postpartum blood loss, but does not establish the claim about bleeding in the third trimester or during delivery. (LLM, conf=0.84)

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Research works printed but not linked: 3

  1. [16]Knight M, Acosta C, Brocklehurst P, Cheshire A, Fitzpatrick K, Hinton L, et al Beyond maternal death: improving the quality of maternal care through national studies of 'near-miss' maternal morbidity. Programme Grants for Applied Research. Southampton (UK) 2016. 27386616
  2. [20]Stroup DF, Berlin JA, Morton SC, Olkin I, Williamson GD, Rennie D, et al Meta-analysis of observational studies in epidemiology: a proposal for reporting. Meta-analysis Of Observational Studies in Epidemiology (MOOSE) group. Jama. 2000; 283(15): 2008– 12. 10789670
  3. [33]Zhao L, Zhao XL, Cheng YM, Xu YY. Effects of different types of placenta previa on pregnancy outcome. Maternal and Child Health Care of China. 2016; 31(6): 1163– 65.

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Authors
Fan, D., Xia, Q., Liu, L., Wu, S., Tian, G., Wang, W., Wu, S., Guo, X., & Liu, Z.
Affiliations
  • Anhui Medical University (CN)
  • Anhui University of Traditional Chinese Medicine (CN)
  • First Affiliated Hospital Zhejiang University (CN)
  • Foshan Maternity and Child Health Care Hospital (CN)
Corresponding author
Guo, Xiaoling
ORCID
Venue
PLOS ONE
Publisher
Public Library of Science (PLoS)
Published
2017-01-20
Volume
12
Issue
1
Pages
e0170194
ISSN
1932-6203 (ISSN-L)
DOI
10.1371/journal.pone.0170194
PMC
PMC5249070
OpenAlex
W2574444842
Cited by
115
References
42
Citations by year
2026: 8 · 2025: 13 · 2024: 12 · 2023: 11 · 2022: 18 · 2021: 18 · 2020: 10 · 2019: 12 · 2018: 8 · 2017: 4 · 2015: 1
FWCI
1.74
Type
journal article
Language
en
Open access
Licence
Locations
  • PLoS ONE (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • QUT ePrints (Queensland University of Technology) (submittedVersion, cc-by)
  • RePEc: Research Papers in Economics (submittedVersion)
  • DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Maternal and fetal healthcare
  • Health Sciences › Medicine › Biochemistry › Blood transfusion and management
  • Health Sciences › Medicine › Obstetrics and Gynecology › Pregnancy and preeclampsia studies
Keywords
postpartum hemorrhage, placenta previa, incidence, pregnancy complications, maternal morbidity, regional variation in incidence
MeSH terms
Adult, Female, Postpartum Hemorrhage, Humans, Placenta Previa, Pregnancy, Incidence

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