Endoscopic ultrasound-guided reintervention for biliary metal stent kinking using a device delivery system.

Kinking of the stent is one of the major causes of biliary metal stent dysfunction [1]. Although the preferred treatment is to remove the stent and deploy a new one, this is difficult to do in patients with duodenal obstruction due to tumor invasion. Herein, we report a case of successful endoscopic ultrasound (EUS)-guided reintervention for biliary metal stent kinking using a device delivery system.