Kobayashi Kanao, Ikeda Kenichiro, Ogasawara Norimasa
Department of Urology, Chugoku Rosai Hospital, Japan Organization of Occupational Health and Safety, Hiroshima, Japan.
Medicine (Baltimore). 2025 Jun 13;104(24):e42843. doi: 10.1097/MD.0000000000042843.
The replacement of double-J ureteral stents (DJ stents) is a routine procedure in urology that conventionally requires cystoscopy. We developed a new medical device, the "Kagibo," for removing DJ stents without cystoscopy in women. This study aimed to report the usefulness and safety of Kagibo in DJ stent removal in women. This retrospective study included a total of 34 female patients with a median age of 67 years (range: 44-87 years) who required DJ stent replacement between April and July 2024. The procedure was performed with the patients in the supine position without pain management. DJ stent replacement was performed as follows: the Kagibo was inserted into the bladder through the external urethral orifice; the distal end of the DJ stent was hooked to the Kagibo under fluoroscopic guidance; and the Kagibo was pulled outside the urethra, and the old DJ stent was replaced with a new stent. We defined success as cases in which DJ stents could be removed with the Kagibo and complications as cases requiring additional procedures or drug therapy associated with DJ stent removal. We retrospectively investigated the success rates and incidence of complications. The success rate of DJ stent removal using the Kagibo was 100%. No complications were observed. Our findings indicate that the Kagibo allows for the safe and effective removal of DJ stents without cystoscopy in women.
双J输尿管支架（DJ支架）置换术是泌尿外科的常规手术，传统上需要膀胱镜检查。我们开发了一种新的医疗器械“Kagibo”，用于在不进行膀胱镜检查的情况下为女性取出DJ支架。本研究旨在报告Kagibo在女性DJ支架取出术中的有效性和安全性。这项回顾性研究共纳入了34例女性患者，中位年龄为67岁（范围：44 - 87岁），她们在2024年4月至7月期间需要进行DJ支架置换。手术在患者仰卧位且未进行疼痛管理的情况下进行。DJ支架置换术操作如下：将Kagibo通过尿道外口插入膀胱；在荧光透视引导下将DJ支架的远端钩挂到Kagibo上；然后将Kagibo拉出尿道，用新支架替换旧的DJ支架。我们将成功定义为能用Kagibo取出DJ支架的病例，将并发症定义为需要与DJ支架取出相关的额外手术或药物治疗的病例。我们回顾性调查了成功率和并发症发生率。使用Kagibo取出DJ支架的成功率为100%。未观察到并发症。我们的研究结果表明，Kagibo能够在不进行膀胱镜检查的情况下安全有效地为女性取出DJ支架。
