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Descolamento da placenta

Last reviewed: 24 Sep 2025
Last updated: 17 Jul 2024

Summary

Definition

History and exam

Key diagnostic factors

  • sangramento vaginal
  • dor abdominal
  • contrações uterinas
  • sensibilidade uterina
Full details

Other diagnostic factors

  • lombalgia
  • óbito fetal
Full details

Risk factors

  • hipertensão crônica
  • pré-eclâmpsia
  • tabagismo
  • uso de cocaína
  • trauma
  • parto cesáreo prévio
  • ruptura prematura das membranas fetais pré-termo
  • multiparidade
  • idade materna avançada
  • polidrâmnio
  • corioamnionite
  • malformações uterinas
  • descolamento da placenta prévio
  • gestações multifetais
  • oligoidrâmnios
  • leiomiomas uterinos
  • trombofilias
Full details

Diagnostic investigations

1st investigations to order

  • monitorização fetal
  • Hb e hematócrito
  • exames de coagulação
  • teste de Kleihauer-Betke (K-B)
  • ultrassonografia
Full details

Investigations to consider

  • patologia placentária
Full details

Treatment algorithm

INITIAL

todos os pacientes

ACUTE

feto vivo: >34 semanas

feto vivo: ≤34 semanas

morte fetal

Contributors

Authors

Yinka Oyelese, MD, FACOG
Yinka Oyelese

Director, Obstetric Imaging

Beth Israel Deaconess Medical Center

Harvard Medical School

Boston

MA

Disclosures

YO is an author of a number of references cited in this topic.

Anthony M. Vintzileos, MD, FACOG
Anthony M. Vintzileos

Chairman

Department of Obstetrics and Gynecology

Winthrop University Hospital

Mineola

Professor

Obstetrics, Gynecology, and Reproductive Medicine

Stony Brook School of Medicine

Stony Brook

NY

Disclosures

AMV declares that he has no competing interests.

Peer reviewers

Christopher Glantz, MD, MPH

Professor of Obstetrics and Gynecology

University of Rochester School of Medicine

Rochester

New York

NY

Disclosures

CG declares that he has no competing interests.

Austin Ugwumadu, PhD, FRCOG

Consultant/Senior Lecturer in Obstetrics and Gynaecology

St George's Hospital

London

UK

Disclosures

AU declares that he has no competing interests.

Peer reviewer acknowledgements

BMJ Best Practice topics are updated on a rolling basis in line with developments in evidence and guidance. The peer reviewers listed here have reviewed the content at least once during the history of the topic.

Disclosures

Peer reviewer affiliations and disclosures pertain to the time of the review.

References

Our in-house evidence and editorial teams collaborate with international expert contributors and peer reviewers to ensure that we provide access to the most clinically relevant information possible.

Key articles

American College of Radiology. ACR appropriateness criteria: second and third trimester bleeding. 2020 [internet publication].Full text

Society for Maternal-Fetal Medicine (SMFM), Gyamfi-Bannerman C. Society for Maternal-Fetal Medicine (SMFM) Consult Series #44: Management of bleeding in the late preterm period. Am J Obstet Gynecol. 2018 Jan;218(1):B2-8.Full text  Abstract

Reference articles

A full list of sources referenced in this topic is available to users with access to all of BMJ Best Practice.
  • Descolamento da placenta images
  • Differentials

    • Trabalho de parto pré-termo
    • Placenta prévia
    • Corioamnionite
    More Differentials
  • Guidelines

    • Intrapartum care
    • ACR appropriateness criteria: second and third trimester vaginal bleeding
    More Guidelines
  • Patient information

    Pressão alta: o que é?

    Pressão alta: quais tratamentos funcionam?

    More Patient information
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