Urodynamic factors in relation to outcome of prostatectomy.

A pre- and postoperative five-year follow-up study on 83 patients undergoing elective prostatectomy for benign hypertrophy revealed good overall symptomatic results in 70 (84%). Hesitancy and a poor stream were improved more often than were frequency and nocturia. A high preoperative voiding pressure was significantly associated with a good result; less satisfactory results tended to be associated with a higher preoperative flow rate.