Abstract
Four patients (2 were HBsAg positive) with acute icteric viral hepatitis (VH) developed acute renal failure (ARF) in the course of their illness and in the absence of other complications. Their peak serum creatinine values (4.7-10, mean 7 mg/dl) were reached either before or simultaneously with their maximum serum aminotransferase values (1,390-2730, mean 2,032 mU/ml). Apart from VH no other factors responsible for precipitating ARF could be identified. In the HBsAg-negative patients, serological investigations for infectious mononucleosis, cytomegalovirus infection, and leptospirosis were negative. In 2 patients liver biopsy showed changes consistent with VH. Proteinuria was absent in all cases, making glomerulonephritis unlikely. The urinary sodium excretion was uniformly high (57-104, mean 78 mmol/l in random samples). Two patients required short courses of dialysis. All cases recovered completely with return of serum creatinine to normal values after a mean duration of 25 days. After a normal serum creatinine level had been achieved, 1 case was lost to follow-up, and the other 3 cases maintain normal renal and liver function tests 9 months (mean) after the initial episode. Otherwise uncomplicated VH is a potential cause of ARF, even in the absence of severe hepatic insufficiency. The mechanism of ARF in VH is unknown, but vasoconstriction phenomena induced by endotoxemia might contribute.
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