F6半硬性细输尿管镜联合Ntrap在输尿管上段结石中的应用

F6 semi-rigid ureteroscope combined with Ntrap basket for the treatment of proximal ureteral calculi

目的:探讨F6半硬性细输尿管镜联合结石捕获器(Ntrap)在输尿管上段结石碎石中的应用价值及其可行性。方法:回顾性分析37例输尿管上段结石患者,术中因F9.8标准输尿管镜无法上行而改用F6半硬性细输尿管镜联合Ntrap及更换200μm钬激光光纤进行碎石治疗的效果。结果:37例输尿管结石单次碎石成功率为91.9%(34/37),术中未发生输尿管穿孔或撕脱等严重并发症。随访1~3个月,1个月结石排净率为97.1%(33/34),无输尿管狭窄发生。结论:F6半硬性细输尿管镜更换200μm钬激光光纤联合Ntrap是标准输尿管镜无法上行碎石的最佳补救措施,Ntrap可有效防止结石上移,明显提高碎石成功率。

Objective:To explore the application value and feasibility of F6 semi-rigid ureteroscope combined with Ntrap basket for the treatment of proximal ureteral calculi.Method:We retrospectively analysed the clinical data of 37 patients failed to be inserted the F9.8 standard ureteroscope.They were transferred to be used F6 fine semi-rigid ureteroscope combined with Ntrap basket and 200μm holmium laser fiber during the procedure.Result:The immediate success rate was 91.9%(34/37)among the 37 cases.No severe complications in terms of ureteral perforation or avulsion occurred during the procedure.During the follow-up period of 1-3 months,the stone free rate at 1 month was 97.1%(33/34),and no ureteral stricture was observed.Conclusion:F6 fine semirigid ureteroscope combined with Ntrap basket and 200μm holmium laser fiber is the best remedy when the standard ureteroscope failed to be inserted,which is effective in prevention of stone retropulsion and could significantly improve the success rate of fragmentation.