Evaluation of bladder contractility in men undergoing transurethral resection of the prostate.

Abstract

We analyzed preoperative and postoperative urodynamic parameters in 26 patients who underwent transurethral prostatic resection with the aid of a computer program. The parameters URA, W and Wmax were evaluated: URA affords a monitoring of the removal of obstruction, while Wmax and W function monitor changes in detrusor contractility, which appear significant after prostatic resection in obstructed patients. Many patients had a fading contraction, that is detrusor contractility decreased during micturition: in most of them the removal of obstruction restored this pattern to normal. Evaluation of these parameters is recommended for preoperative assessment and postoperative follow-up.