571 A prospective randomised study between transurethral vaporisation using plasmakinetic energy and transurethral resection of prostate: Three year follow-up

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... A meta-analysis of results for Qmax after 12-month follow-up reveals that holmium laser procedures , transurethral electrovaporization and TURP are equally efficient [13,14] . A comparison of this accumulated data with the results from our KTP laser vaporization study as well as other trials using this technique show that PVP is comparable to aforementioned primary tissue-ablative transurethral procedures (Table 4)15161718192021222324252627. In patients with high baseline residual urine volumes debulking of the obstructive tissue is of utmost concern. ...
This study aims to investigate safety and efficacy of 80 watt high-power potassium titanyl phosphate (KTP) laser vaporization of the prostate in men with lower urinary tract symptoms (LUTS) secondary to benign prostatic hyperplasia (BPH). 108 patients underwent 80W KTP laser vaporization. Functional follow-up included measurement of maximum urinary flow rate (Qmax), postvoid residual volume (Vres) and International Prostate Symptom Score (IPSS) within a 12 months period. The average prostate volume was 52.2+/-24.3 ml and the preoperative PSA value was 3.6+/-3.6 ng/dl. Mean operation time was 54.5+/-25.0 min. Qmax increased highly significantly (p<0.001) by 111% (+7.9 ml/s) at discharge, 212% (+15.1 ml/s) after three months, 201% (+14.3 ml/s) after six months and 252% (+17.9 ml/s) after 12 months. Correspondingly, Vres, IPSS and Bother Score improved to an extent that was statistically highly significant (p<0.001) immediately after surgery. The observed complication rate within one year was low. 80 W KTP laser vaporization is a virtually bloodless, safe and effective procedure for surgical treatment of LUTS secondary to BPH. A significant improvement of objective and subjective voiding parameters was observed just after surgery. KTP laser vaporization is associated with a low rate of complications.
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