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Rh incompatibility

Última revisão: 13 Jul 2025
Última atualização: 11 Apr 2025

Resumo

Definição

História e exame físico

Principais fatores diagnósticos

  • presence of risk factors
Detalhes completos

Fatores de risco

  • history of an RhD-positive fetus in an RhD-negative mother
  • fetomaternal hemorrhage
  • invasive fetal procedures
  • placental trauma
  • abortion
  • multiparity
  • omission of Rh immunoprophylaxis
  • external cephalic version
  • molar pregnancy
  • ectopic pregnancy
Detalhes completos

Investigações diagnósticas

Primeiras investigações a serem solicitadas

  • maternal blood type
  • maternal serum Rh antibody screen
Detalhes completos

Investigações a serem consideradas

  • maternal serum antibody titer
  • paternal blood type
  • paternal zygosity
  • fetal ultrasound
  • Doppler velocimetry of fetal middle cerebral artery (peak systolic velocity)
  • fetal blood typing (from amniocentesis or maternal circulation)
  • direct assessment of fetal anemia
  • rosette test
  • Kleihauer-Betke test/flow cytometry
Detalhes completos

Algoritmo de tratamento

Inicial

unsensitized RhD-negative mother

sensitized RhD-negative mother

AGUDA

neonate with erythroblastosis

Colaboradores

Autores

Andrew D. Hull, MD, FRCOG, FACOG

Professor of Clinical Obstetrics, Gynecology, and Reproductive Sciences

Director, UC San Diego Maternal-Fetal Care and Genetics

Division of Maternal-Fetal Medicine

Department of Obstetrics, Gynecology, and Reproductive Sciences

University of California San Diego

La Jolla

CA

Declarações

ADH declares that he has no competing interests.

Agradecimentos

Dr Andrew D. Hull would like to gratefully acknowledge Dr Karen Fung-Kee-Fung and Dr Felipe Moretti, previous contributors to this topic.

Declarações

KFKF is an author of a reference cited in this topic. KFKF and FM declare that they have no competing interests.

Revisores

Alan Cameron, MD

Honorary Professor of Medicine

University of Glasgow

Glasgow

UK

Declarações

AC is an author of several references cited in this topic.

Liakat Ali Parapia, MD, FRCP

Consultant Hematologist

Bradford Teaching Hospitals NHS Trust

Yorkshire Clinic

Bingley

Bradford

UK

Disclosures

LAP declares that he has no competing interests.

Kenneth J. Moise, Jr., MD

Professor of Obstetrics and Gynecology

Texas Children's Fetal Center

Baylor College of Medicine/Texas Children's Hospital

Houston

TX

Disclosures

KJM declares that he has no competing interests.

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

Brennand J, Cameron A. Fetal anaemia: diagnosis and management. Best Pract Res Clin Obstet Gynaecol. 2008 Feb;22(1):15-29. Abstract

American College of Obstetrics and Gynecology. ACOG practice bulletin no. 181: prevention of Rh D alloimmunization. Obstet Gynecol. 2017 Aug;130(2):e57-70. Abstract

American Congress of Obstetrics and Gynecology. ACOG practice bulletin no. 192: management of alloimmunization during pregnancy. Obstet Gynecol. 2018 Mar;131(3):e82-90. Abstract

Qureshi H, Massey E, Kirwan D, et al. BCSH guideline for the use of anti-D immunoglobulin for the prevention of haemolytic disease of the fetus and newborn. Transfus Med. 2014 Feb;24(1):8-20.Full text  Abstract

Visser GHA, Thommesen T, Di Renzo GC, et al. FIGO/ICM guidelines for preventing Rhesus disease: a call to action. Int J Gynaecol Obstet. 2021 Feb;152(2):144-7.Full text  Abstract

Whyte RK, Jefferies AL; Canadian Paediatric Society, Fetus and Newborn Committee. Red blood cell transfusion in newborn infants. Paediatr Child Health. 2014 Apr;19(4):213-22.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.
  • Rh incompatibility images
  • Differentials

    • Nonimmune fetal hydrops
    • Parvovirus infection
    • Non-RhD hemolytic disease
    More Differentials
  • Guidelines

    • ACOG clinical practice update: paternal and fetal genotyping in the management of alloimmunization in pregnancy
    • ACOG clinical practice update: Rh D immune globulin administration after abortion of pregnancy loss at less than 12 weeks of gestation
    More Guidelines
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