头端可弯负压吸引鞘联合一次性输尿管软镜治疗多发肾结石的疗效分析OA

Objective:To compare the safety and efficacy of tip-bendable suction ureteral access sheath(S-UAS)combined with retrograde intrarenal surgery(RIRS)versus percutaneous nephrolithotomy(PCNL)for treating multiple renal stones with a total diameter 2 to 4 cm.Methods:A retrospective analysis was conducted on the clinical data of 74 patients with multiple kidney stones(total diameter 2 to 4 cm)at the Department of Urology,Yichang Central People's Hospital from January 2024 to April 2025.Patients were divided into two groups based on different treatment methods:the observation group(n=35)underwent tip-bendable S-UAS combined with RIRS,and the control group(n=39)underwent PCNL.The clinical efficacy of the two groups was compared.Results:The postoperative stone-free rates were 71.43％and 76.92％in the two groups,respectively,and the difference was not statistically significant(P＞0.05).Compared with the control group,the observation group had significantly lower increases in postoperative creatinine,white blood cell count,procalcitonin,interleukin-6,pain scores,bed-rest duration,hospital stay,and hospitalization costs,with all differences being statistically significant(all P＜0.05).Moreover,the postoperative fever rate in the observation group was 5.71％,markedly lower than the 23.08％in the control group(P＜0.05).Conclusion:Compared with PCNL,S-UAS combined with RIRS for treating multiple kidney stones with a total diameter 2 to 4 cm can significantly reduce the risk of infection while ensuring stone free rate,shorten length of stay,and reduce hospitalization costs,showing remarkable clinical efficacy.