Bipolar versus monopolar transurethral resection of the prostate: results of a comparative, prospective bicenter study--perioperative outcome and long-term efficacy.

Objectives: To compare bipolar and monopolar transurethral resection of the prostate (TURP) in a comparative prospective study at two urology centers.

Methods: Of 212 patients with symptomatic benign prostatic hyperplasia entered prospectively into the study, 111 underwent bipolar and 101 monopolar TURP. Patients were treated in two consecutive series with each surgical method at both centers.