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Hepatic encephalopathy: current challenges and future prospects.

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Hepatic encephalopathy (HE) is a neuropsychiatric complication of liver dysfunction. This review covers HE definitions, pathogenesis, and current/novel treatments, including liver transplant considerations.

Keywords:
covert hepatic encephalopathyhepatic encephalopathylactulosepathogenesisprobioticsrifaximintreatment

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Area of Science:

  • Hepatology
  • Neurology
  • Gastroenterology

Background:

  • Hepatic encephalopathy (HE) is a common complication of liver dysfunction, impacting patients with acute liver failure, cirrhosis, and liver bypass procedures.
  • HE manifests as a spectrum of neuropsychiatric symptoms, from cognitive impairment to coma, significantly increasing morbidity in liver disease patients.
  • Classified as Type A, B, or C, and as overt or covert, HE's pathogenesis involves ammonia and glutamine, with diagnosis relying on clinical suspicion and supportive tests.

Purpose of the Study:

  • To review the definitions, pathogenesis, and treatment of hepatic encephalopathy (HE).
  • To discuss existing and novel therapeutic strategies for managing HE.
  • To highlight the role of liver transplantation in select HE cases.

Main Methods:

  • Literature review focusing on definitions, pathogenesis, and treatment of HE.
  • Analysis of existing treatments, including precipitating factor avoidance.
  • Evaluation of novel therapies and the consideration of liver transplantation.

Main Results:

  • HE is a complex condition linked to ammonia and glutamine metabolism.
  • Current treatments aim to reduce ammonia formation or enhance its removal.
  • Various novel therapies are emerging, alongside established management strategies.

Conclusions:

  • Effective HE management requires understanding its pathogenesis and diverse clinical presentations.
  • A multi-faceted treatment approach, including lifestyle adjustments and medical interventions, is crucial.
  • Liver transplantation remains a vital consideration for eligible patients with severe or refractory HE.