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Encefalopatia hepática

Última revisión: 21 Jul 2025
Última actualización: 06 Aug 2024

Resumen

Definición

History and exam

Key diagnostic factors

  • presença de fatores de risco
  • distúrbios do humor
  • perturbações do sono
  • distúrbios motores
  • deficit neurológico avançado
Full details

Other diagnostic factors

  • asterixis (flapping)
  • eritema palmar
  • aranhas vasculares
  • edema periférico
  • icterícia
  • hepatomegalia
  • ascite
Full details

Risk factors

  • hipovolemia
  • hemorragia digestiva
  • constipação
  • ingestão excessiva de proteína
  • hipocalemia
  • hiponatremia
  • alcalose metabólica
  • hipóxia
  • uso de sedativos
  • uso de opioides
  • superdosagem de diuréticos
  • hipoglicemia
  • infecção
  • trombose da veia porta ou hepática
  • anastomose porto-cava
  • comprometimento renal
Full details

Diagnostic tests

1st tests to order

  • testes da função hepática
  • glicose sérica
  • perfil de coagulação
  • eletrólitos séricos
  • ureia e creatinina
  • gasometria arterial ou venosa
  • Hemograma completo
  • marcadores inflamatórios (por exemplo, proteína C-reativa)
  • hormônio estimulante da tireoide
  • nível de álcool no sangue
  • nível de amônia sanguíneo
  • urocultura
  • hemocultura
  • rastreamento de toxina na urina
  • ultrassonografia
  • TC ou RNM do crânio
Full details

Tests to consider

  • eletroencefalograma (EEG)
  • punção lombar
  • paracentese abdominal
Full details

Treatment algorithm

ACUTE

todos os pacientes

ONGOING

episódio prévio/recorrente

Contributors

Authors

Jasmohan S. Bajaj, MD, FAASLD, FACG, AGAF, FRCP (London), MS

Professor of Medicine

Department of Internal Medicine

Division of Gastroenterology, Hepatology and Nutrition

Virginia Commonwealth University and Central Virginia Veterans Healthcare System

Richmond

VA

Disclosures

JB’s institution has received research support from Bausch, Grifols, Cosmo, and Sequana.

Acknowledgements

Dr Jasmohan Bajaj would like to gratefully acknowledge Dr Emily Speelmon, Dr Robert Hyzy, and Dr Meilan Han, previous contributors to this topic.

Disclosures

ES, RH, and MH declare that they have no competing interests.

Peer reviewers

Sammy Saab, MD, MPH, AGAF

Professor of Medicine

Department of Internal Medicine and Surgery

David Geffen School of Medicine

UCLA

Los Angeles

CA

Disclosures

SS is a member of the speaker bureau and advisory board for Salix.

Jorge A. Marrero, MD

Assistant Professor of Medicine

Division of Gastroenterology

University of Michigan

Ann Arbor

MI

Disclosures

JAM 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

Vilstrup H, Amodio P, Bajaj J, et al. Hepatic encephalopathy in chronic liver disease: 2014 practice guideline by the American Association for the Study of Liver Diseases and the European Association for the Study of the Liver. Hepatology. 2014 Aug;60(2):715-35.Full text  Abstract

European Association for the Study of the Liver. EASL clinical practice guidelines on the management of hepatic encephalopathy. J Hepatol. 2022 Sep;77(3):807-24.Full text  Abstract

Bajaj JS, O'Leary JG, Lai JC, et al. Acute-on-chronic liver failure clinical guidelines. Am J Gastroenterol. 2022 Feb 1;117(2):225-52.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.
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  • Guidelines

    • Clinical practice guidelines on the management of hepatic encephalopathy
    • Acute-on-chronic liver failure clinical guidelines
    More Guidelines
  • Calculators

    Escore MELDNa (para fins de listagem de transplantes de fígado, não é adequado para pacientes com menos de 12 anos de idade ) (unidades SI)

    Classificação de Child-Pugh para gravidade da doença hepática (unidades SI)

    More Calculators
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