Yeh Chin-Chung, Chen Chieh-Hsiao, Lin Chia-Ho, Chang Chao-Hsiang, Wu Hsi-Chin
Department of Urology, Chima Medical University Hospital, China Medical University, Taichung City, Taiwan, Republic of China.
J Urol. 2004 Feb;171(2 Pt 1):719-21. doi: 10.1097/01.ju.0000106520.15509.d9.
Treating forgotten indwelling ureteral stents is difficult because forgotten stents become encrusted and fragmented. Therefore, we developed a silk loop with which to loop the lower end of a forgotten ureteral stent during ureterorenoscopy to supply a counterforce, which fixed the stent while separating encrusted stones from the forgotten stent. We evaluated the success of the silk loop method.
Nine patients were enrolled in this study from 1997 to 2003. Each patient had a forgotten ureteral stent with renal stones on the tip of the proximal end. All consented to the procedure of silk loop assisted ureterorenoscopic lithotripsy (URSL) with a Lithoclast (Microvasive, Natick, Massachusetts) lithotriptor.
We successfully removed the forgotten indwelling stent from all 9 patients with the silk loop assisted URSL method.
Silk loop assisted URSL makes the removal of forgotten stents easier. While percutaneous nephrostolithotomy and open surgery produce successful results, the silk loop method is less invasive and expensive, and it minimizes hospital recovery time.
处理遗忘的留置输尿管支架很困难，因为遗忘的支架会形成结石并破碎。因此，我们开发了一种丝线环，在输尿管镜检查期间用其套住遗忘的输尿管支架下端以提供反作用力，在将结石与遗忘的支架分离时固定支架。我们评估了丝线环方法的成功率。
1997年至2003年，9名患者纳入本研究。每位患者均有一个遗忘的输尿管支架，其近端尖端有肾结石。所有患者均同意采用丝线环辅助输尿管镜碎石术（URSL），使用碎石器（Microvasive公司，马萨诸塞州纳蒂克）进行手术。
我们通过丝线环辅助URSL方法成功为所有9名患者取出了遗忘的留置支架。
丝线环辅助URSL使取出遗忘的支架更容易。虽然经皮肾镜取石术和开放手术也能取得成功，但丝线环方法侵入性更小、费用更低，且能将住院恢复时间减至最短。
