120W GreenLight High Performance System laser for benign prostate hyperplasia: 68 Patients with 3-year follow-up and analysis of predictors of response - Abstract

OBJECTIVE: To investigate 3-year postoperative results of photoselective vaporization of the prostate using the 120W GreenLight High Performance System photoselective vaporization of the prostate (HPS-PVP) for treating benign prostate hyperplasia (BPH) >30 mL.

METHODS: Records of 68 of 85 men who underwent HPS-PVP and were followed up for 3 years were analyzed retrospectively. Patients were older than 50 years with prostate volume >30 mL, International Prostate Symptom Score (IPSS) ≥8, maximum flow rate (Qmax.) < 15 mL/s, and bladder outlet obstruction (BOO) index ≥20. Parameters, including IPSS and Qmax., were measured at baseline and 6, 12, 24, and 36 months postoperatively. Patients who improved by at least 30% from baseline IPSS scores were considered responders, and logistic regression analysis was done to determine predictors of response.

RESULTS: Mean age, prostate volume, IPSS, Qmax., and operative time were 71.6 ± 7.3 years, 50.0 ± 17.0 mL, 21.7 ± 7.9, 8.7 ± 3.1 mL/s, and 60.6 ± 31.9 minutes, respectively. Six months postoperatively, 50 (73.5%) patients responded with respect to IPSS score, and 40 (58.8%) maintained improvements at 3 years postoperatively. Analysis at 3-year follow-up showed that for IPSS ≥19, the higher the IPSS the greater the functional bladder capacity (FBC) and the lower the frequency of nocturia; and for BOO index ≥40, the higher the BOO index the better the response.

CONCLUSION: HPS-PVP is a safe and effective procedure for treating BPH, having demonstrated that 60% of patients maintained efficacy at 3 years postoperatively. Baseline IPSS, FBC, nocturia, BOO index, and bladder contractility index were valuable for predicting response to surgery.

Written by:
Cho SY, Park S, Jeong MY, Ro YK, Son H.   Are you the author?
Department of Urology, Seoul National University, Boramae Medical Center, Seoul, Republic of Korea.

Reference: Urology. 2012 Aug;80(2):396-401.
doi: 10.1016/j.urology.2012.01.063


PubMed Abstract
PMID: 22857762

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