金属网状支架在继发性肾盂输尿管连接部梗阻中的应用

Use of Memotherm^(TM) stent in secondary ureteropelvic junction obstruction

目的 总结应用金属网状支架治疗继发性肾盂输尿管连接部梗阻的临床疗效。 方法 回顾性分析 1 3例应用金属网状支架治疗继发性肾盂输尿管连接部梗阻患者资料。男 1 0例 ,女 3例 ;平均年龄 4 1岁。术后采用B超、IVU、肾图及输尿管镜检复查。 结果 1 3例患者平均随访 2 6个月 ,其中 8例治愈 ,3例好转 ,2例失败。术后发生支架腔内纤维化狭窄 5例 ,需输尿管镜下去除增生纤维组织。 结论 金属网状支架可用于治疗继发性肾盂输尿管连接部梗阻 ,尤其适宜于多次手术失败、不适宜开放手术者 。

Objective To evaluate the clinical efficacy of Memotherm TM stent,a type of metallic stent in the management of secondary ureteropelvic junction obstruction. Methods From October 1995 to June 2001,13 cases (10 males and 3 females,mean age of 41 years) of secondary ureteropelvic junction obstruction underwent the Memotherm TM stenting.They were all followed up for an average of 26 months by B ultrasound,IVU,radionuclide renography and ureteroscopy. Results Of the 13 case,8 were cured,and 3 achieved improvement,while 2 cases failed.The main complications of endoprosthetic fibrotic stricture occurred in 5 cases.The forceps or YAG laser through ureteroscopy was used to remove the endoprosthetic fibrotic tissues. Conclusions Memotherm TM stent is mostly effective in the treatment of patients with secondary ureteropelvic junction obstruction,especially for patients who has undergone multiple operations or those are ineligible for open surgery.This procedure can significantly reduce the recurrence of ureterostenosis.