摘要目的:探讨输尿管支架管(以下简称支架管)结石的形成原因。方法:回顾性选择本院2021年6月至2021年11月收治的183例拔除支架管患者的临床资料并分析支架管结石与患者年龄、性别、原发结石手术处理方式、原发结石成分、支架管类型、支架管留置时间、结石残留情况、置管后尿路感染等的相关性。结果:支架管结石发生率与留置时间( OR＝1.033，95% CI：1.005~1.062)、置管后尿路感染( OR＝1.018，95% CI：1.004~1.033)、年龄( OR＝2.334，95% CI：1.048~5.202)有相关性，与患者性别、原发结石手术处理方式、原发结石成分、支架管类型、有无结石残留等无相关性。支架管结石成分以草酸钙结石、无水尿酸结石、碳酸磷灰石为主，与原发结石成分无相关性(均 P>0.05)。 结论:支架管结石发生率与留置时间、置管后尿路感染、年龄相关。支架管结石成份与原发结石成份无相关性。

abstractsObjective:To analyze the causes of ureteral stent (hereinafter referred to as stent) stones.Methods:Clinical data of 183 patients with stent removal from June 2021 to November 2021 in our hospital were retrospectively analyzed. To analyze the correlation between stent calculi and patients′age, gender, surgical treatment of primary calculi, primary calculus composition, stent tube type, stent retention time, stone residue and urinary tract infection after catheterization.Results:A total of 183 patients were included, with an average age of (49.99±12.53) years, 110 males (60.1%) and 73 females (39.9%). The stents stone formation rate was 32.8%. The incidence and indwelling time of stent calculus ( OR=1.033, 95% CI: 1.005-1.062), urinary tract infection after catheterization ( OR=1.018, 95% CI: 1.004-1.033), age ( OR=2.334, 95% CI: 1.048-5.202), but no correlation was found with patient gender, surgical treatment of primary stone, primary stone composition, stent tube type, or stone residue. The main components of stents were calcium oxalate stones, anhydrous uric acid stones and carbonate apatite, which had no correlation with the primary stone components (all P>0.05). Conclusions:The incidence of stent calculus was correlated with indwelling time, urinary tract infection after catheterization and age. There was no correlation between stents and primary stone composition.