体外冲击波碎石对高密度输尿管结石治疗效果的影响因素分析

目的探讨影响体外冲击波碎石（ESWL）治疗高密度输尿管结石疗效（CT值＞1000 HU）的影响因素。 方法回顾性收集2015年6月至2020年6月在北京大学首钢医院诊断CT值＞1000 HU的单发输尿管结石，同时行ESWL治疗患者的临床资料，分析第一次体外碎石后的疗效和影响因素。 结果65例患者纳入研究，平均结石大小为（10.63±3.24）mm，平均结石密度（CT值）1202±126 HU，碎石成功率为63.1%，结石大小是影响ESWL治疗效果的独立影响因素（OR=1.586，95%CI=1.162~2.166，P=0.004）。ROC曲线分析显示，预测ESWL疗效的结石大小临界值是1 cm。 结论对于CT值＞1000 HU的输尿管结石，结石大小是影响ESWL疗效的独立预测因素，其中≤1 cm结石的碎石成功率达84.8%。

Prediction of stone-free rates after extracorporeal shockwave lithotripsy for treatment of high-density ureteral stones

ObjectiveTo identify the influencing factors of extracorporeal shockwave lithotripsy (ESWL) in the treatment of high-density ureteral calculi (CT value > 1000 HU). MethodsClinical data of single ureteral calculi with a CT value > 1000 HU diagnosed at Peking University Shougang Hospital from June 2015 to June 2020 were retrospectively collected, and the efficacy and influencing factors of the first external lithotriptomy were analyzed. ResultsSixty-five patients were included in the study. The average stone size was (10.63±3.24) mm, the average stone density (CT value) was 1202±126 HU, and the success rate of lithotripsis was 63.1%. Stone size was an independent factor affecting the therapeutic effect of ESWL (odds ratio=1.586, 95% confidence interval: 1.162~2.166, P=0.004). ROC analysis showed that the critical value of stone size for predicting ESWL efficacy was 1 cm. ConclusionFor ureteral calculi with a CT value＞1000 HU, stone size is an independent predictor of ESWL efficacy, and the success rate of ESWL for calculi ≤ 1 cm was 84.8%.