输尿管嵌顿性结石形成的多因素分析及微创经皮肾镜技术结石清除率观察

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Abstract Objective To analyze the influencing factors of the formation of incarcerated ureteral stones and observe the stone removal rate of minimally invasive percutaneous nephrolithotomy (MPCNL). Methods Clinical data of 126 patients with ureteral stones admitted to the Department of Urology, the 904th Hospital of the PLA Joint Logistic Support Force from February 2017 to February 2020 were analyzed. All patients were performed MPCNL treatment, according to the incarceration of ureter stones, they were divided into non-incarcerated group (74 cases) and incarcerated group (52 cases). The factors affecting the formation of incarcerated ureteral stones were analyzed, and the stone removal rate of two groups were observed. Results Univariate analysis showed that there were statistically significant differences between two groups in the history of ipsilateral stones, combined hypertension, combined hydronephrosis, stone volume, stone transverse diameter, stone maximum cross-sectional area, stone CT value and maximum thickness of ureteral wall (UWTmax) (all P < 0.05). Multivariate analysis showed that UWTmax was an independent risk factor for the formation of incarcerated ureteral stones (OR = 3.080, 95%CI: 1.056-8.981, P < 0.05). The optimal cut-off value of UWTmax was 3.41 mm, the area under the curve was 0.871 (95%CI: 0.786-0.955), the specificity was 87.65%, and the sensitivity was 82.63%. The MPCNL stone removal rate of non-incarcerated group was higher than that of incarcerated group, and the difference was statistically significant (P < 0.05). Conclusion UWTmax is an independent risk factor for the formation of incarcerated ureteral stones. UWTmax≥3.41 mm increases the risk of incarcerated ureteral stones, and the stone removal rate after treatment with MPCNL for incarcerated ureteral stones is slightly lower.

Key words： Incarcerated ureteral stones Multiple factors Minimally invasive percutaneous nephrolithotomy Stone removal rate

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	DING Jun LIU Junqiang ZHANG Chao LI Guobo ZHU Xuming SUN Jianming▲

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DING Jun LIU Junqiang ZHANG Chao LI Guobo ZHU Xuming SUN Jianming▲. Multivariate analysis of the formation of incarcerated ureteral stones and observation of stone removal rate by minimally invasive percutaneous nephrolithotomy[J]. 中国医药导报, 2021, 18(15): 79-83.

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https://www.yiyaodaobao.com.cn/EN/ OR https://www.yiyaodaobao.com.cn/EN/Y2021/V18/I15/79

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