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COMPARATIVE STUDY
JOURNAL ARTICLE
MULTICENTER STUDY

Thulium laser (RevoLix) vaporesection versus vapoenucleation with morcellator (Piranha) for the treatment of benign prostatic obstruction: a propensity-matched multicenter analysis

Jae Seung Chung, Pil Moon Kang, Won Ik Seo, Cheol Kyu Oh, Seong Cheol Kim, Sang Hyun Park, Jun Ho Choi, Jang Ho Yoon, Dong Il Kang, Jae Il Chung
International Journal of Urology: Official Journal of the Japanese Urological Association 2014, 21 (11): 1156-61
25040293

OBJECTIVES: To compare the efficacy and safety of vaporesection without a morcellator, and vapoenucleation with a morcellator in thulium laser prostatectomy for the treatment of benign prostatic obstruction.

METHODS: Between March 2010 and January 2013, 405 patients underwent thulium:yttrium-aluminium-garnet laser prostatectomy. Among these patients, 150 patients who underwent thulium:yttrium-aluminium-garnet laser prostatectomy without a morcellator (n = 75) or with a morcellator (n = 75) were analyzed in a propensity matching study. Outcome measures included International Prostate Symptom Score, quality of life score, maximum flow rate, postvoid residual, total operating time, laser time and resected tissue weight.

RESULTS: No significant differences were noted between the thulium:yttrium-aluminium-garnet laser prostatectomy without a morcellator and thulium:yttrium-aluminium-garnet laser prostatectomy with a morcellator groups, including the prostate volume (50.3 vs 51.9 mL) and postoperative prostate volume (22.4 vs 18.7 mL). However, there were differences between the groups in total operating time (72.8 vs 61.0 min, P = 0.023) and laser activating time (24.5 vs 19.9 min, P = 0.037). Thulium:yttrium-aluminium-garnet laser prostatectomy with a morcellator showed greater resected tissue volume than thulium:yttrium-aluminium-garnet laser prostatectomy without a morcellator (9.0 vs 18.2 g, P = 0.029). There were also significant differences in total retrieval efficiency (1.14 vs 1.67 g/min, P = 0.031). There were no significant differences in improvement of International Prostate Symptom Score, quality of life scores and urodynamic findings between the two groups, except for the International Prostate Symptom Score (11.2 vs 7.3, P = 0.028) at 6 weeks after surgery.

CONCLUSION: Thulium:yttrium-aluminium-garnet laser prostatectomy with a morcellator provides superior reduction of prostate volume and better short-term clinical outcomes than thulium:yttrium-aluminium-garnet laser prostatectomy without a morcellator in the treatment of patients with benign prostatic obstruction. Furthermore, thulium:yttrium-aluminium-garnet laser prostatectomy with a morcellator can offer a shorter operative time.

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