Vaporization of prostates of > or =80 mL using a potassium-titanyl-phosphate laser: midterm-results and comparison with prostates of <80 mL

BJU International
Jesco PfitzenmaierMarkus Hohenfellner

Abstract

To compare the safety and outcome of potassium-titanyl-phosphate (KTP) Greenlight (Laserscope, AMS, Minnetonka, MN, USA) vaporization for treating benign prostatic hyperplasia (BPH) in prostates of > or =80 vs <80 mL. In all, 204 consecutive patients were enrolled into this prospective study; 31 were excluded from analysis for various reasons, thus 173 (median age 66.8 years; 39 with prostates of > or =80 mL) were evaluated for maximum urinary flow rate (Q(max)), postvoid residual urine (PVR), the International Prostate Symptom Score (IPSS), and quality-of-life (QoL) score. The median follow-up was 11.7 months. Of the 173 men, 26.6% were anaesthesiological high-risk patients and 32.4% took anticoagulants. The Q(max) improved in prostates of > or =80 mL from 6.9 mL/s before to 15.3 mL/s immediately after catheter removal, and 23.4 mL/s after 3 months (P < 0.001). The improvement was similar to that in smaller prostates. There were equally effective changes in PVR (P < 0.001). The IPSS decreased from 19.0 before to 7.0, 4.0 and 5.5 at 3, 6 and 12 months after surgery (P < 0.001). Changes did not differ from those in smaller glands. The results were similar for QoL (P < 0.001). During surgery there was no major bleeding and no tra...Continue Reading

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