目的:探讨输尿管导管外引流及手持针筒注水等低压灌注技术在输尿管镜钬激光碎石术中的临床应用价值，分析其可行性、实用性及临床疗效。方法:选取2019年2月至2020年1月在本院行输尿管镜下钬激光碎石术的12例输尿管结石患者为研究对象，根据术中灌注方式将其分为低压灌注组和普通灌注组。低压灌注组在输尿管导管外引流及手持针筒注水等低压灌注下行输尿管镜钬激光碎石术；普通灌注组在灌注泵灌注下行输尿管镜钬激光碎石术。分别比较两组的手术时间、疗效和术后并发症的发生率。结果:两组手术时间比较，差异无明显统计学意义(n P>0.05)，低压灌注组的结石残留率明显低于普通灌注组(n P<0.05)，其术后肾区疼痛、肉眼血尿及全身炎症反应综合征等并发症的发生率均明显低于普通灌注组(n P0.05). The technique of low-pressure perfusion could significantly reduce the incidence of stone residue(n P<0.05), and with lower incidence of early complications such as postoperative pain in renal area, gross hematuria, transient renal dysfunction and systemic inflammatory response syndrome than that of the general perfusion group(n P<0.05).n Conclusions:The technique of low-pressure irrigation, such as external drainage of ureteral catheter and irrigation with hand-held syringe, is highly operable in ureteroscopic holmium laser lithotripsy, reduces the incidence of stone residue and complications such as systemic inflammatory response syndrome, has clinical application value.