The urethral pressure profile was measured by the use of a two-eyed 14F Nelaton's catheter in 15 control adult males, 17 patients with benign prostatic hypertrophy and 15 patients with prostatism without prostatic enlargement. The catheter was passed at a speed of 30mm/min, using a flow rate of 1 to 2ml/mite. The parameters of UPP used in this study were the Max. P, FPUL and Area, as shown in Fig. 1 . In the area measurement a multipurpose integrator was used, the application of which in this

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... eld has not been described to date. An a-adrenergic blocker was given in 10 of the 17 patients with benign prostatic hypertrophy and its effect was evaluated by the UPP.