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Impact of Prostate Volume on the Efficacy of High-Power Potassium-Titanyl-Phosphate Photoselective Vaporization of the Prostate: A Retrospective, Short-Term Follow-Up Study on Evaluating Feasibility and Safety

Cited 3 time in Web of Science Cited 3 time in Scopus
Issue Date
2010-11-01
Publisher
YONSEI UNIV COLLEGE MEDICINE
Citation
YONSEI MEDICAL JOURNAL; Vol.51 6; 877-882
Keywords
ProstateKTPlaser surgeryvaporizationbenign prostatic hyperplasia
Abstract
Purpose: We determined the impact of prostate volume on the efficacy of the high-power (80 W) potassium-titanyl-phosphate (KTP) photoselective laser vaporization of the prostate in men with lower urinary tract symptoms (LUTS). Materials and Methods: Patients were stratified into 3 groups according to prostate volume: `<40 g` (n = 49) and `40-59 g` (n = 49) and 60 g` (n = 22). Median follow-up was 9 months (range 6 to 21). Results: No differences in age and follow-up duration were observed in the three groups. At baseline, no significant differences were noted in the three groups in terms of the International Prostate Symptom Score (IPSS) (21.4, 19.4 and 19.1; p = 0.412) as well as the maximum flow rate (Qmax) (10.2, 9.2, and 8.6 mL/s; p = 0.291) and post-void residual (PVR) (66.2, 80.4, and 71.5 mL; p = 0.856). The mean operative times were 30.9, 46.9, and 58.6 minutes (p < 0.001) and total median energy deliveries for each group were 62.3, 97.6, and 135.9 kJ, respectively (p < 0.001). No severe intraoperative complication was observed. At the last follow-up, these parameters improved significantly regardless of prostate volume, and the IPSS (11.1, 9.4, and 12.3; p = 0.286) as well as Qmax (15.9, 15.9, and 14.2 mL/s; p = 0.690) and PVR (33.7, 28.4, and 14.2 mL; p = 0.395) were not significantly different among the groups. Conclusion: Although a larger prostate requires more time and energy delivery, photoselective laser vaporization of the prostate is safe and efficacious for patients with LUTS regardless of prostate volume.
ISSN
0513-5796
Language
English
URI
https://hdl.handle.net/10371/77069
DOI
https://doi.org/10.3349/ymj.2010.51.6.877
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College of Medicine/School of Medicine (의과대학/대학원)Urology (비뇨기과학전공)Journal Papers (저널논문_비뇨기과학전공)
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