Urodynamic analysis in 245 patients with benign prostatic hypertrophy

To study the mechanism of voiding disorder and promote thediagnosic accuracy of bladder outlet obstruction (BOO), a full setof urodynamic examination were employed with self-made semi-supine bed and Manneu Danec Urodynamic device in 245 patients.The results showed definite BOO in 161 cases, doubtful BOO in 50cases, detrusor muscle dysfunction in 65 cases, depressed bladdercompliance in 70 cases, urethral sphincter dyssynergia in 114 cas-es , and unstable bladder in 59 cases. There is a close relationshipbetween the functional urethral length and the prostatic urethrallength as determined by B ultrasound. It suggests that both the dy-namic and mechanical factors are attributed to voiding disorder inpatients with BPH. The urodynamic examination plays an importantrole in the diagnosis of BOO. (Chin J Androl 2000; 4: 234 - 236)