Holmium Laser Enucleation of the Prostate: Modified Two-Lobe Technique versus Traditional Three-Lobe Technique - A Randomized Study

Abstract

Background. Holmium laser enucleation of the prostate (HoLEP) is considered the standard endoscopic treatment of benign prostatic hyperplasia (BPH), but traditional HoLEP surgery will cause some postoperative complications. This study was attempted to evaluate the safety and efficacy of modified two-lobe technique versus traditional three-lobe technique of HoLEP focusing mainly on incidences of retrograde ejaculation (RE) and urinary incontinence (UI). Methods. From March 2014 to February 2017, 191 men with BPH were randomly assigned to two groups: 97 underwent modified two-lobe technique; 94 underwent traditional three-lobe technique. All patients were followed up for 12 months. Primary outcomes were incidences of RE and UI, and secondary outcomes were international prostate symptom score (IPSS), quality of life (QOL), maximal urine flowing rate (MFR), and residual urine among the studied patients. Results. Compared with the traditional technique, patients in the modified group had a statistically significant decrease in frequency of UI (1.03% vs 8.51%, p=0.036) and RE in the 6th month (33.33% vs 63.64%, p=0.030) and 12th month (13.33% vs 50%, p=0.034) and a significant increase in ejaculatory volume in the 6th month (p=0.050) and 12th month (p=0.003). Besides, the modified HoLEP was more beneficial to patients according to the change of QoL score at 1 month (p=0.002), 3 months (p=0.004), 6 months (p=0.026), and 12 months (p=0.015). Conclusions. The modified two-lobe technology of HoLEP reduced the incidence of RE and UI, which improved the quality of life of the patients after surgery compared to the traditional three-lobe technology. This trial is registered with ChiCTR1800018553.