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The hepatorenal syndrome

R J Metz, R K Tompkins

    Surgery, Gynecology & Obstetrics
    |August 1, 1976
    PubMed
    Summary

    Hepatorenal syndrome involves kidney failure in advanced liver disease patients. While treatments have limited success, some survivors show reversible kidney function with improved liver health.

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    Area of Science:

    • Nephrology
    • Hepatology
    • Internal Medicine

    Background:

    • Hepatorenal syndrome (HRS) is characterized by progressive renal failure in patients with advanced liver disease, typically cirrhosis.
    • Clinical signs include azotemia, oliguria, hyponatremia, and low urinary sodium, with normal urinary sediment.
    • Kidney histology may show glomerulosclerosis, tubular cell degeneration, and basement membrane alterations, though often infrequent.

    Purpose of the Study:

    • To define hepatorenal syndrome and review its clinical characteristics.
    • To explore pathophysiological theories, including reduced plasma volume, vena cava hypertension, and renal vasoconstriction.
    • To discuss therapeutic interventions and their impact on mortality rates.

    Main Methods:

    • Review of existing literature on hepatorenal syndrome.
    • Analysis of clinical and histological findings in affected patients.
    • Discussion of various treatment modalities and their outcomes.

    Main Results:

    • The most accepted theory involves selective renal cortical vasoconstriction, shunting blood flow from cortical to medullary nephrons.
    • The roles of the sympathetic nervous system and plasma renins in HRS pathogenesis are explored.
    • Therapeutic interventions, including plasma volume expansion, pharmacologic agents, portacaval shunt, liver transplantation, and steroids, generally show limited success in improving survival.

    Conclusions:

    • Hepatorenal syndrome presents a significant challenge with high mortality rates.
    • While treatments are largely ineffective, some surviving patients exhibit reversible renal dysfunction correlating with hepatic disease improvement.
    • Further research into effective therapies for hepatorenal syndrome is warranted.

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