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Generation of a Rat Model of Acute Liver Failure by Combining 70% Partial Hepatectomy and Acetaminophen
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Management in acute liver failure.

Shalimar1, Subrat K Acharya1

  • 1Department of Gastroenterology, All India Institute of Medical Sciences, New Delhi 110029, India.

Journal of Clinical and Experimental Hepatology
|June 5, 2015
PubMed
Summary
This summary is machine-generated.

Acute liver failure (ALF) is a severe condition where the liver rapidly loses function. This review covers its causes, the critical role of ammonia in hepatic encephalopathy, and treatment strategies including liver transplantation and medical management.

Keywords:
AASLD, American Association For the Study of LiverALF, Acute Liver FailureALFED, Acute Liver Failure Early Dynamic ModelBBB, Blood Brain BarrierBCAA, Branched Chain Amino acidCBF, Cerebral Blood FlowCPP, Cerebral Perfusion PressureCVVHD, Continuous Veno-Venous HemodialysisFFP, Fresh Frozen PlasmaGM-CSF, Granulocyte Macrophage Colony Stimulating FactorHE, Hepatic EncephalopathyICU, Intensive Care UnitIEI, Icterus Encephalopathy IntervalIL-1β, Interleukin-1 betaIL6, Interlekin 6INR, International Normalized RatioLOLA, l-Ornithine L AspartateLOPALOPA, l-Ornithine Phenyl AcetateMAP, Mean Arterial PressureNAC, N-Acetyl CysteineNO, Nitric OxideOLT, Orthotopic Liver TransplantationPCWP, Pulmonary Capillary Wedge PressurePEEP, Positive End Expiratory PressurePT, Prothrombin TimeSIMV, Synchronous Intermittent mandatory VentilationSIRS, Systemic Inflammatory Response SyndromeSPEAR, Selective Parenteral and Enteral Antibiotic RegimenTNF-α, Tumor Necrosis Factor alfaUCD, Urea Cycle DisorderUSALF, United States Acute liver Failure Study Groupammoniacerebral edema

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Area of Science:

  • Hepatology
  • Critical Care Medicine
  • Pathophysiology

Background:

  • Acute liver failure (ALF) is a rare but life-threatening condition characterized by severe liver injury.
  • Key clinical signs include jaundice, coagulopathy, and hepatic encephalopathy (HE).
  • Cerebral edema and HE are the primary causes of mortality in ALF.

Purpose of the Study:

  • To review the pathogenetic mechanisms of ALF, focusing on encephalopathy and cerebral edema.
  • To discuss current and evolving treatment options for ALF.
  • To highlight the importance of prognostic models in guiding therapeutic strategies.

Main Methods:

  • This is a review article, synthesizing existing literature.
  • Discussion of pathogenetic mechanisms including the role of ammonia.
  • Analysis of treatment modalities: liver transplantation and intensive medical management.

Main Results:

  • Ammonia plays a central role in the pathogenesis of HE and cerebral edema in ALF.
  • Liver transplantation is a key therapy for patients with poor prognostic factors.
  • Intensive medical management can salvage a significant proportion of ALF patients.

Conclusions:

  • Effective management of ALF requires accurate identification of complications and causes of death.
  • Prognostic models are vital for selecting appropriate treatment, distinguishing candidates for liver transplant from those managed medically.
  • Further research into ammonia-lowering agents is ongoing.