Acute nonoliguric renal failure in the postoperative patient.

Fourteen patients with acute nonoliguric renal failure have been studied during the past 3 years. The mortality rate was 7% and the complication rate was 21%. Early recognition of the nonoliguric state and its maintenance with adequate volume replacement should decrease the mortality rate in postoperative acute renal failure. Reasons for the decrease in septic complications among this group of patients are not clear, but the absence of septic complications appears to be the major reason for the decreased morbidity and mortality in these patients.