الفهرس 
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Abstract
IN Many attempts have been made to develop a continent form of uri- nary diversion-. Encouraging results have been obtained with the Kock pouch, which offers a low pressure highly compliant reservoir. The Parks S-pouch had an additional advantage that it can be easily uti- . 1 ized when the mesentery is fatty and short, where the Kock pouch can- not be applied. We treated 30 patients for invasive bladder carcinoma with continent urinary diversion (Kock pouch in 15 and S-bladder in 15). Out of the 30 cases that entered the study, 24 were evaluable, six patients were considered unevaluable: 2 developed local recurrence, 3 had reflux and one had multiple stones in his pouch. To study the effect of the configuration of the ileal reservoirs on their urodyna- mic features, we compared both groups. Volume capacity and pressure characteristics were studied 6 months post-operatively. The mean capacity of the reservoirs was 500.::. 83 ml. for the S-bladder and 536.::. 56 ml. for the Kock pouch. The amplitudes of phasic contractions at 50%, 80% and 100% capacity were similar in both groups. However, the frequency of these contractions was higher in S-bl adder. The intraluminal pressure at full capacity was 31~15 cm water for S- bladder and 39.::.20 cm water for Kock pouch.