孤立肾结石F-URS与PCNL术后的结石残留影响因素

The influence factors of residual calculi of solitary renal stone after operation of F-URS and PCNL

目的探讨分析影响行输尿管软镜碎石术(F-URS)和经皮肾镜碎石术(PCNL)治疗孤立肾结石术后结石残留的因素。方法将2005年1月至2015年12月在该院接受F-URS和PCNL治疗孤立肾结石患者76例纳入研究。将结石的大小、位置和数目及手术时间、术中出血量等指标作为可变因素进行单变量及多变量分析,以确定可能影响术后结石残留的因素。结果在76例研究对象中出现术后结石残留的共有28例次,总结石残留发生率为36.8%。单因素分析结果显示,结石部位、大小和数目以及术中出血量和手术时间均和术后结石的残留有密切的联系(P=0.021、0.015、0.004、0.015、0.027),多变量分析显示,只有结石部位、大小和数目仍保持为术后结石残留的独立预后因素(P=0.041、0.036、0.019)。结论结石大小、结石数目、结石位置等因素对PCNL和F-URS术后结石残留具有重要预后价值。

Objective To analyze the influence factors of residual calculi of solitary renal stone after operation of flexible ure- teroscopic tithotripsy （F-URS） and percutaneous nephrolithotomy（PCNL）. Methods Seventy-six patients with solitary renal stone from Jan. 2005 to Dec. 2015 in our hospital underwent F-URS and PCNL were collected. The calculus size,location, number and operation time, bleeding volume in surgery as the variable factors were used to test the possible factors affecting residual calculi af- ter operation according to univariate and multivariate analysis. Results The residual calculi was found in twenty-eight cases out of 76 patients after operation, and the incident rate of residual calculi was 36. 8%. According to the univariate analysis result, there were significant relationship between residual calculi and calculus size, location, number and operation time, bleeding volume in sur- gery（P=0.021,0.015,0. 004,0.015,0.027）. According to the multivariate analysis result, the calculus location, size, and number were the independent prognostic factors of residual calculi after operation （P=0. 041,0. 036,0. 019）. Conclusion The result shows that calculus location,size,and number have prognostic values to the residual calculi after operation of F-URS and PCNL.