[Clinical analysis of the factors affecting the prognosis of acute renal failure]

Analysis of the factors influencing the prognosis of acute renal failure was carried out in cases experienced during the past 10 years. The factors presumed directly affecting the renal function (acute insults) and coexistent predisposing factors (risk factors) were analysed. The followings were considered to be acute insults: surgery/trauma/burn, drug intoxication, sepsis, hypotension, dehydration, rhabdomyolysis, hepatorenal syndrome, and hypercalcemia/hyperuricemia. Suspected risk factors included age, urine volume, underlying disorders/complications. Risk factors rather than acute insults were related to the outcome of acute renal failure. The mortality rate increased as the associated risk factors increase in number. In non-oliguric cases, maximum serum creatinine level was lower than the anuric cases, however there was no difference in the duration of the impaired renal function between 2 groups. In survival cases, the factors affecting the time for the recovery of renal function were also studied, but no definite factors could be determined.