We have reported a case of acute oliguric renal failure with hyperkalemia in a patient with cirrhosis, ascites, and cor pulmonale after indomethacin therapy. Prompt restoration of renal function followed drug withdrawal, while re-exposure to a single dose of indomethacin caused recurrence of acute reversible oliguria. Our case supports the hypothesis that endogenous renal prostaglandins play a role in the maintenance of renal blood flow when circulating plasma volume is diminished. Since nonsteroidal anti-inflammatory agents interfere with this compensatory mechanism and may cause acute renal failure, they should be used with caution in such patients.
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