Urodynamic Analysis of the Ileocolic Neobladder

Oh, Kwan Soo; Cho, Yong Hyun; Yoon, Moon Soo

Abstract

From May 1991 to December 1993, 30 male bladder cancer patients with 34 to 68 years old age (mean age 52.4 years) underwent bladder replacement with the ileocolic neobladder. A divided segment of ileum and colon was used to create a neobladder after radical cystectomy with a cecourethral anastomosis to provide volitional voiding with continence. Urodynamic studies were followed up 3, 6, l2 and 18 months postoperatively. The mean maximal reservoir capacity was 420+/-87.7, 553+/-65.3, 565+/-60.3, 563+/-53.5ml, mean maximal reservoir pressure was 33.2+/-7.5, 24.2+/-6.1, 24.0+/-5.9, 23.1+/-6.3cmH2O, mean maximal urethral closure pressure was 57.9+/-9.5, 61.3+/-7.6, 61.0+/-7.3, 61.5+/-6.9cmH2O, maximal flow rate was 23.2+/-7.2, 24.3+/-5.8, 24.0+/-6.1, 24.1+/-5.4ml/s and residual urine was 40.0+/-10.3, 35.0+/-7.8, 24.0+/-6.1, 24.1+/-5.4ml/s. The daytime continence rate was 100% and the nighttime continence rate was 93% at 6 months postoperatively. With its very good functional results and its ease of performance, ileocolic neobladder may be one of the ideal urinary diversion for bladder substitution after radical cystectomy.