Outcome of Transurethral Wedge Loop Vaporization-Resection versus Conventional Transurethral Resection Treatment for Benign Prostatic Hyperplasia

Abstract

Background and Purpose: To study the 5-year outcome of transurethral Wedge Loop raporization-resection versus conventional transurethral resection treatment for patients with prostatic hyperplasia (BPH). Methods: This prospective randomized study was performed between January 1997 and November 1999. Seventy-two patients with symptomatic BPH undergoing transurethral vaporization-resection (TUVRP) using ”Wedge Loop” compared to that of seventy-four cases with conventional transurethral resection of the prostate (TURP). All cases were assessed international prostate symptom score (I-PSS), quality of life (QOL) score, peak urinary flow rate (Qmax), prostatic volume, and post-void residual volume (PVR). Perioperative details and postoperative complications were recorded. Baseline, 3 months, 1, 2, 3 and 5 years follow-up data were analyzed. Results: The operation time was no difference (p=0.1) whereas perioperative hemorrhage, fluid irrigation amount, catheterization and length of hospital stay were significant between these two groups. Improvement in I-PSS, Qmax, prostate volume, and PVR were also significant in each group at 3-month review. Adverse events included that the sexual impotence, retrograde ejaculation, urethral stricture and urinary incontinence were no difference between two groups at 2-year end. The retreatment rates were 8% versus 9.8% (p=0.51) at 2 years and 9.7% versus 11.1% (p=0.59) at 5 years. 20 (27.8%) cases of TUVRP and 21 (28.4%) cases of TURP completed 5 years follow-up, and revealed no difference in treatment durability (p＞0.05). Conclusion: Transurethral Wedge Loop electrovapour resection appears to have perioperative advantages over TURP and the long-term outcome durability seems equivalent each other.