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Related Experiment Videos

Shock liver.

J S Rawson, J L Achord

    Southern Medical Journal
    |December 1, 1985
    PubMed
    Summary
    This summary is machine-generated.

    Shock liver, or ischemic hepatitis, involves rapid, severe elevations in liver enzymes due to poor blood flow, resolving within days. This condition is linked to various critical illnesses, not just low blood pressure.

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    Area of Science:

    • Hepatology
    • Critical Care Medicine
    • Internal Medicine

    Background:

    • Shock liver, also known as ischemic hepatitis, presents with marked elevations in aspartate aminotransferase (AST) and alanine aminotransferase (ALT).
    • This syndrome is typically associated with cellular anoxia and decreased hepatic perfusion.
    • Previous understanding often linked it directly to systemic hypotension.

    Purpose of the Study:

    • To characterize the clinical and biochemical features of shock liver.
    • To identify underlying conditions associated with decreased cellular perfusion in patients with shock liver.
    • To evaluate the typical histologic findings in resolved cases.

    Main Methods:

    • Retrospective analysis of ten cases with clinical diagnosis of shock liver.

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  • Review of clinical data, including systemic blood pressure and underlying medical conditions.
  • Analysis of liver function tests (transaminases, bilirubin, alkaline phosphatase) and prothrombin time.
  • Histopathological examination of liver biopsies in two cases post-resolution.
  • Main Results:

    • Systemic hypotension was present in only 40% of cases; however, decreased cellular perfusion was identified in all.
    • Underlying causes included cardiac failure, sepsis, cerebrovascular accidents, renal failure, and COPD.
    • Transient elevations in serum bilirubin and alkaline phosphatase, and prolonged prothrombin time, followed transaminase elevations.
    • Histology did not reveal classic centrilobular necrosis in resolved cases.

    Conclusions:

    • Shock liver is characterized by a characteristic, rapidly resolving clinical and biochemical profile.
    • It is associated with a broader range of conditions causing decreased cellular perfusion, not solely systemic hypotension.
    • The distinct clinical presentation aids in differentiating it from other causes of elevated liver enzymes.