Park Sang Woo, Cha In Ho, Hong Suk Joo, Yi Jeong Geun, Jeon Hae Jeong, Park Jeong Hee, Park Sang Joon
Deparment of Radiology, Konkuk University Hospital, Konkuk University, School of Medicine, 4-12 Hwayang-dong, Gwangjin-gu, 143-729 Seoul, Republic of Korea.
J Vasc Interv Radiol. 2007 Feb;18(2):251-6. doi: 10.1016/j.jvir.2006.12.722.
To describe simple and safe techniques for transurethral removal and for exchange of ureteral stents in female patients under fluoroscopic guidance.
During a period of 33 months, the authors removed 4 and exchanged 34 double-J ureteral stents in 17 female patients. Four techniques were implemented to remove or exchange these stents: simple snare technique, modified snare technique, guide-wire lasso technique, and direct grasping technique.
All stents were either exchanged or removed successfully. The average time elapsed per procedure was 21.5 minutes. Simple snare techniques were used with 19 (50%) stents, and modified snare techniques were used with 13 (34%) stents where grasping the tip of a stent was not possible with the snare alone. Lasso and direct grasping techniques were each used with three (8%) stents. Self-limited microscopic hematuria was observed in all subjects after the procedure, but none reported gross hematuria.
Fluoroscopy-guided transurethral removal and exchange of ureteral stents is a safe and effective procedure, and it can be considered as an alternative to cystoscopic removal and exchange.
描述在透视引导下，用于女性患者经尿道取出和更换输尿管支架的简单且安全的技术。
在33个月的时间里，作者为17例女性患者取出了4个并更换了34个双J输尿管支架。实施了四种技术来取出或更换这些支架：简单圈套技术、改良圈套技术、导丝套索技术和直接抓取技术。
所有支架均成功更换或取出。每个操作过程平均耗时21.5分钟。19个（50%）支架使用了简单圈套技术，13个（34%）支架使用了改良圈套技术，这些支架仅用圈套无法抓取支架尖端。套索技术和直接抓取技术各用于3个（8%）支架。术后所有受试者均出现自限性镜下血尿，但无肉眼血尿报告。
透视引导下经尿道取出和更换输尿管支架是一种安全有效的操作，可被视为膀胱镜取出和更换的替代方法。
