The curative effect observation of sigmoid neobladder in 15 cases with invasive bladder cancer

Objective:To investigate the curative effect of sigmoid neobladder after radical cystectomy in 15 patients with invasive bladder cancer.Methods:Sigmoid neobladder was conducted after radical cystectomy in 15 males with bladder cancer.The curative effect and technical points were analyzed.Results:Fifteen cases were followed up for 6 to 72 months.Bilateral and unilateral hydronephrosis was found in 5 cases and in 1 case,respectively.The volume of urodochium was 210 to 456 ml,and the static pressure in neobladder was 18.6 to 31.8 cmH2O.Vesical micturition pressure was 36.21 to 71.56 cmH2O.Qmax was between 10.22 to 12.26 ml/s.The residual urine volume was 33 to 58 ml.Daytime incontinence was found in 1 case in the first year after operation.Nocturnal urinary incontinence was found in 11 cases.Conclusions:The sigmoid neobladder had several advantages including an adequate reservoir capacity,recovery of automatic micturition,good renal function,no acid-base and electrolyte imbalance,and the continence effect was good at daytime,but not good at night.It could be a good choice a better operation in replacing bladder.