Second Department of Internal Medicine, Wakayama Medical University, Wakayama, Japan.
Dig Endosc. 2023 Mar;35(3):302-313. doi: 10.1111/den.14428. Epub 2022 Oct 11.
A variety of devices have been developed for interventional endoscopic ultrasound (EUS). EUS-guided drainage of the bile duct and pancreatic duct, as well as fluid collection adjacent to the gastrointestinal tract, is performed by a procedure involving puncture, guidewire manipulation, tract dilation, and stent placement. Devices specialized for interventional EUS are being developed for each step of the procedure. Mechanical dilators such as bougie, balloon, and electrocautery dilators are used for tract dilation. Various types of plastic stents, self-expandable metal stents, and lumen-apposing metal stents specifically designed for interventional EUS are now available, including one-step devices developed to improve the efficacy and safety of interventional EUS. In addition, radiofrequency ablation and the placement of fiducial markers and radioactive seeds under EUS guidance are now becoming established for pancreatic neoplasms. Such development of specialized devices has expanded the indications for interventional EUS, increased the success rate, and lowered the adverse event rate.
已经开发出多种用于介入性内镜超声（EUS）的设备。EUS 引导下的胆管和胰管引流，以及胃肠道附近的积液，是通过穿刺、导丝操作、通道扩张和支架放置等步骤完成的。专门用于介入性 EUS 的设备正在为该程序的每一步进行开发。机械扩张器如探条、球囊和电切扩张器用于通道扩张。现在有各种类型的塑料支架、自膨式金属支架和专门为介入性 EUS 设计的管腔贴合金属支架，包括为提高介入性 EUS 的疗效和安全性而开发的一步式设备。此外，射频消融以及在 EUS 引导下放置基准标记和放射性种子现在已成为胰腺肿瘤的常规治疗方法。这种专用设备的发展扩大了介入性 EUS 的适应证，提高了成功率，降低了不良事件的发生率。
