[Acute obstructive renal failure. Analysis of 28 cases].

This retrospective study is concerned 28 patients hospitalized with acute obstructive renal failure at the department of nephrology in UHC Ibn-Rochd between 1988 and 1995. The objective of this study was to determine the clinical, étiological, therapeutical and evolutive aspects of the acute obstructive renal failure. It concerned 21 men and 7 women, their mean age is 52 years old. The main symptoms were anuria (85%) and lumbar pain (75%), the mean delay of consultation was 42 days. The diagnosis of the acute obstructive renal function and the presence of obstacle on the upper urinary tract. The obstacle was a stone in 19 cases, cancer in 8 cases and one case of retroperitoneal fibrosis was noted. Treatment of the cause was done whenever possible. Treatment was often palliative in the tumoral pathology. We observed 3 deaths (10.5%), 16 recoveries (58%), 6 cases of residual renal failure (21%), 3 cases of terminal chronic renal failure (10.5%) and 4 cases of recurrence. The lithiasic etiology of acute obstructive renal failure led to a high short-term mortality (15.5%), an effective etiologic causative treatment (69.5%) and a high rate or restoration of the renal function (69.5%). On the other hand, in the neoplastic etiology, there were no short-term mortality, but a frequent course to chronic renal failure.