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  • Title: Short term outcomes of GreenLight vapor incision technique (VIT) of the prostate: comparison of outcomes to standard GreenLight 120W HPS vaporization in prostate volumes greater than 80 cc.
    Author: Ben-Zvi T, Hueber PA, Abdollah F, Liberman D, Bhojani N, Gautam G, Zorn KC.
    Journal: Can J Urol; 2013 Feb; 20(1):6633-9. PubMed ID: 23433136.
    Abstract:
    INTRODUCTION: To evaluate a hybrid technique involving GreenLight 120W HPS vapor incision tissue removal in prostate glands > 80 cc. MATERIALS AND METHODS: Vapor incision technique (VIT) was performed in 25 consecutive men with a prostate > 80 cc by a single surgeon from May 2010 until September 2010. VIT involved adenoma incisions at 5 and 7-o'clock positions followed by 3, 9 and 12 o'clock down to the surgical capsule. Side-fire vaporization along the capsule excised transurethral resection of the prostate (TURP) like tissue strips for later retrieval. Functional evaluations were performed at 1 and 3 months. Outcomes and complications were compared retrospectively to baseline and a size matched- cohort of 25 men who previously underwent standard vaporization-only photoselective vaporization prostatectomy (PVP). RESULTS: The VIT and control subgroups were comparable. Mean laser time, operative time and energy usage were reduced in the VIT group compared to controls (35 min versus 48 min; 63 min versus 80 min; and 227 k versus 325 kJ respectively; all p < 0.05). At 3 months the VIT subgroup demonstrated improved Qmax and post void residual (PVR) (197% versus 173%, 88% versus 72%; all p < 0.05) compared to control. VIT showed a 68% reduction in mean preoperative PSA at 3 months compared to 50% for the control group (p<0.01). Hospital stay, catheterization time and complication rates were comparable. CONCLUSIONS: Our data demonstrates that VIT provides superior short term outcomes to standard HPS-PVP in men with prostate volumes > 80 cc. VIT appears to be more time-efficient, consumes less energy and obtains tissue for pathological evaluation. Further follow up is required to assess the durability of GreenLight HPS-VIT to PVP vaporization-only for large prostate glands.
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