Evaluation of early apical release with bipolar Collins knife versus Thulium-Yag laser enucleation of large-sized prostate. A randomized study.

Introduction And Objectives: Anatomical endoscopic enucleation of the prostate (AEEP) provides durable management for patients with lower urinary tract symptoms (LUTS) secondary to large-sized prostate over other surgical modalities. We aimed to assess the early outcomes of Collins knife-assisted bipolar enucleation (BipolEP) versus Thulium-Yag enucleation (ThuLEP) in a group of patients with LUTS secondary to a prostate larger than 80 grams.

Methods: We included patients with benign prostatic hyperplasia (BPH) having a prostate volume > 80 grams, international prostate symptom score (IPSS) >7, urine flow (Q-max) <15, and post-void residual (PVR)>150 ml. We excluded those with a history of previous prostatic surgery, stone, or neurogenic bladder. Bipolar enucleation with early apical release was performed using Collins knife at an 80/100-watt setting (Lamidey Noury), while ThuLEP was conducted using 550- micron fiber and 40/15-watt energy (Lisa Laser). Patients were evaluated before then 2 weeks and 3, 6,12 months postoperatively for changes in IPSS, Q- max, PVR, and the incidence of stress incontinence.

Result: One hundred and twenty patients were equally randomized with a mean prostate size of 104 ± 25 gram. The mean IPSS score was 25 ± 6, Qmax 7.6 ± 1.3 mL/S, and PVR 225 ± 39. There was no significant difference regarding enucleation time, morcellation time, and enucleated tissue volume. Irrigation volume and post-operative hemoglobin drop were significantly lower in the bipolar group ( = 0.008,  = 0.0002), respectively. At the third-month follow-up, IPSS, Q-max, and PVR were comparable across both groups, with stress incontinence at 3.3% in the bipolar group versus 1.6% in the thulium group, showing an insignificant difference ( = 0.5)."

Conclusion: Both BipolEP and ThuLEP, with early apical release, provide a safe and effective management of large-size prostate resulting in significant decrease in post-operative stress incontinence incidence during early follow-up. Intraoperative irrigation saline volume, and post-operative hemoglobin drop favored the bipolar group.