[A study of bladder function in benign prostatic hyperplasia]

A study of bladder function was performed on 106 patients with benign prostatic hyperplasia (BPH), 21 of whom had cerebrovascular disease (CVD). The incidence of overactive bladder in 21 patients with CVD was 57% and was significantly higher than the 25% in 86 patients without CVD. The incidence of cases having residual urine of over 100 ml, was in the order of low compliance bladder, overactive bladder and normal bladder. The mean value of maximum voiding pressure in overactive bladder was higher than that in normal bladder. The high pressure was improved after the operation for BPH. Improvement of overactive bladder after the operation was seen in 9 of 13 patients without CVD while in 2 of 6 patients with CVD.