S.T.O.N.E.评分与Guy’s评分预测经皮肾镜取石术结石清除率对比分析

Comparative analysis of S.T.O.N.E. and Guy stone score in predicting stone clearance rate of percutaneous nephrolithotomy

目的:对比和评价S.T.O.N.E.评分系统和Guy’s评分系统预测经皮肾镜取石术(PCNL)患者术后结石清除率。方法:回顾性分析362例接受PCNL患者的临床资料。对同一患者的临床资料分别计算S.T.O.N.E.评分和Guy’s评分。结果:一期结石清除率为72%,58(17%)位患者发生术后并发症。结石清除组与结石残留组的Guy’s评分平均分别为2.3分和2.9分(P<0.001),S.T.O.N.E.评分平均分别为8.2分和9.8分(P<0.001)。S.T.O.N.E.评分系统和Guy’s评分系统都能预测结石清除率,但S.T.O.N.E.评分系统(S_(ROC)=0.710)优于Guy’s评分系统(S_(ROC)=0.674)。结论:S.T.O.N.E.评分系统和Guy’s评分系统相比能够好地预测PCNL患者的结石清除率。

Objective ：To compare and evaluate predictive ability of the S.T.O.N.E. nephrolithometry and the Guy stone score（GSS） for percutaneous nephrolithotomy（PCNL）.Methods：A total of 362 patients who suffered PCNL were retrospectively analyzed．The S.T.O.N.E. nephrolithometry and GSS were calculated by a single observer based on preoperative clinical information. Results： The stone-free rate（SFR） after the first procedure was 72%. There were 58 complications （17%）. In stone-free group and non stone-free group, the mean Guy score was 2.3 vs 2.9 （P 〈0.001） and the mean S.T.O.N.E. score was 8.2 vs 9.8 （P 〈0.001）. The S.T.O.N.E. nephrolithometry and the GSS were significantly correlated with the postoperative stone-free status （P 〈0.001，each）. However, the S.T.O.N.E nephrolithometry （SROC＝0.710） showed more accurate prediction for SFS than the GSS （SROC＝0.674）. Conclusion： Compared （加上with） GSS, the S.T.O.N.E. nephrolithometry scores could predict SFS more accurately after PCNL。