Department of Urology, Seoul National University Hospital, Seoul, Korea.
J Korean Med Sci. 2009 Dec;24(6):1187-91. doi: 10.3346/jkms.2009.24.6.1187. Epub 2009 Nov 9.
The aim of this study was to develop a new simple method for measuring the vaporized volume and to evaluate the outcome of high-power potassium-titanyl-phosphate (KTP) photoselective laser vaporization. A total of 65 patients, with a mean age of 67.7 yr (range 53 to 85), were included in the primary analysis. The vaporized volume was calculated as the pre-operative volume minus the immediate post-operative volume plus the volume of the defect. For all patients, the subjective and objective parameters improved significantly after surgery. Six and 12 months after surgery, the group with a smaller vaporized volume (<15 g) had a lower reduction of the mean International Prostate Symptom Score (P=0.006 and P=0.004) and quality of life index (P=0.006 and P=0.004) when compared to the group with a greater vaporized volume (>or=15 g). There were no differences in the change of the maximum flow rate and post-void residual based on the vaporized volume. Our findings suggest that the subjective improvement, after a high-power KTP laser vaporization, may be dependent on the vaporized volume obtained after the procedure.
本研究旨在开发一种新的简单方法来测量汽化体积，并评估高功率钬钛宝石（KTP）光选择性激光汽化的效果。共有 65 名患者，平均年龄 67.7 岁（范围 53 至 85），被纳入主要分析。汽化体积计算为术前体积减去即刻术后体积加上缺陷体积。对于所有患者，手术后主观和客观参数均显著改善。手术后 6 个月和 12 个月，汽化体积较小（<15 克）的组的平均国际前列腺症状评分（P=0.006 和 P=0.004）和生活质量指数（P=0.006 和 P=0.004）的降低幅度低于汽化体积较大（≥15 克）的组。基于汽化体积，最大流量和残余尿量的变化没有差异。我们的发现表明，高功率 KTP 激光汽化后的主观改善可能取决于术后获得的汽化体积。
