低位负压吸引提高经皮肾镜取石术效率的临床研究

Clinical study on low-set vacuum aspiration improved the efficacy of calculus removal by percutaneous nephrolithotomy

目的探讨低位负压吸引超声碎石清石系统在肾结石治疗中的临床应用价值。方法 25例肾结石患者随机分成2组,对照组15例采用EMS三代超声碎石清石系统进行经皮肾镜碎石术,改良组10例采用低位负压吸引超声碎石清石系统进行经皮肾镜碎石术。对两组清石时间、术中出血量、结石清除率、出血、感染和住院天数等进行比较分析。结果两组患者均顺利完成手术,无1例穿刺失败或中转开放手术。改良组清石时间(开始碎石取石到取石结束)、术中出血量明显少于对照组(P<0.05)。而两组患者的结石清除率、出血和感染等并发症、住院天数差别无显著性(P>0.05)。结论低位负压吸引超声碎石清石系统可以提高清石效率,减少清石时间及手术时间。

Objective To evaluate the clinical value of the ultrasound lithotripsy and clearance system with low-set vacuum aspiration in the treatment of renal calculus. Methods Twenty-five patients with renal calculus were divided into two groups randomly. The control group of 15 patients underwent percutaneous nephrolithotomy with the EMS ultrasound lithotripsy and clearance system . The modified group of 10 patients underwent percutaneous nephrolithotomy with the same system with low-set vacuum aspiration. The time for calculus removal, blood loss, calculus clearance rate, probability of bleeding or infection, and hospitalization days were compared between two groups. Results The patients in both two groups were successfully operated. No puncture was failed. No case was converted to open operation. The time for calculus removal and blood loss of the modified group were significantly less than those of the control group. There were no statistically significant differences in calculus clearance rate, probability of bleeding or infection and hospitalization days between two groups. Conclusions The ultrasound lithotripsy and clearance system with low-set vacuum aspiration can improve the efficacy of calculus removal by percutaneous nephrolithotomy, and shorten the calculus removal time and operation time.