[Ureterosigmoidostomies. 35 cases].

35 patients underwent ureterosigmoidostomy between 1986 and 1996, corresponding to 25 males (71%) and 10 females (29%) with a mean age of 48 years (range: 21 to 81 years). 25 (71%) of these patients had invasive bladder cancer, 4 (12%) had a vesicovaginal fistula, 3 (9%) had bladder exstrophy and 3 (9%) had urethral trauma. All patients had normal renal function. In 2 patients, the ureter was dilated and in 3 other patients, one kidney was silent. The postoperative course are marked by death in 2 cases (6%) due to myocardial infarction, mechanical obstruction in 2 cases (6%), anastomotic dehiscence in 2 cases (6%). The mean follow-up was 4 years (range: 2 to 10 years). Eight patients (22%) developed impaired renal function, isolated hyperchloraemic acidosis was observed in 10 cases (28%), hypokalaemia was observed in 2 cases (6%), and episodes of acute pyelonephritis were reported in 4 cases (11%). Radiological signs of upper urinary tract deterioration were observed in 6 cases (17%). A tumour of the sigmoid colon was observed in one case after a follow-up of 10 years. 25 patients (72%) remain dry throughout the night, while 8 (22%) need to empty their rectum during the night. The poorly tolerated Coffey diversion was replaced in 6 patients (17%). The objective of this study is to analyse the results of ureterosigmoidostomy and to emphasize the advantages and disadvantages of this urinary diversion technique.