Prostatism. II. The correlation between cysto-urethroscopic, cystometric and urodynamic findings.

The cysto-urethroscopic findings in 93 out of 107 consecutive patients referred for symptoms of bladder outlet obstruction were assessed and graded with special reference to bladder wall trabeculation, patency of the bladder neck, prostatic occlusion of the urethra, the estimated prostatic weight and the bladder neck-verumontanum distance. The cysto-urethroscopic findings of trabeculation and prostatic enlargement were not statistically significantly correlated to the cystometric demonstration of detrusor hyperreflexia. However, urodynamic parameters of infravesical obstruction judged by the opening pressure, maximum flow rate and the calculated urethral resistance were statistically significantly correlated to the cysto-urethroscopic findings of prostatic occlusion of the urethra, increased bladder neck-verumontanum distance and an increased prostatic weight estimated at cystoscopy. It is concluded that cysto-urethroscopy gives good information of as well the site as the hydrodynamic severity of organic infravesical obstruction.