Burns Emily J, Smith Peter M, Liew Matthew
Surgery and Anaesthetics Division, Department of Urology, East Lancashire Hospitals NHS Trust, Blackburn, BB2 3HH, United Kingdom.
Surgery and Anaesthetics Division, Department of Urology, Wrightington, Wigan and Leigh NHS Trust, Wigan, WN1 2NN, United Kingdom.
J Surg Case Rep. 2020 Dec 28;2020(12):rjaa527. doi: 10.1093/jscr/rjaa527. eCollection 2020 Dec.
Ureteric stents are widely used for the management of obstructive uropathy and intraoperative identification of the ureters. Despite undergoing numerous modifications since their introduction in 1967, they are frequently associated with complications ranging from irritative symptoms to migration of the stent. Proximal migration of ureteric stents is a relatively uncommon occurrence, with a reported incidence of 1-4.2%; it is usually associated with inappropriate stent length, poor positioning or incorrect deployment of the stent. Here we discuss an interesting case of a patient who unfortunately suffered proximal ureteric stent migration associated with pelvico-ureteric junction obstruction, despite appropriate stent choice, adequate deployment and confirmation of correct positioning. This complication likely occurred secondary to mechanical disruption of the stent caused by the presence of a large staghorn calculus within the renal pelvis.
输尿管支架广泛应用于梗阻性尿路病的治疗及术中输尿管的识别。自1967年引入以来，尽管经历了多次改进，但它们仍常伴有各种并发症，从刺激性症状到支架移位不等。输尿管支架近端移位相对少见，报道的发生率为1%-4.2%；通常与支架长度不合适、放置位置不佳或支架展开不正确有关。在此，我们讨论一例有趣的病例，尽管支架选择恰当、展开充分且位置确认正确，但患者仍不幸发生了与肾盂输尿管连接部梗阻相关的输尿管支架近端移位。这种并发症可能是由于肾盂内存在巨大鹿角形结石导致支架机械性破坏继发所致。
