Ultraslim catheter-type peroral cholangioscope-assisted endoscopic transpapillary gallbladder drainage for acute cholecystitis

Endoscopic transpapillary gallbladder drainage (ETGBD) is clinically effective for acute cholecystitis but is technically challenging [1] [2]. In addition, the shape and bifurcation of the cystic duct represent a technical limitation and difficulty of this method [2] [3] [4]. Recently, an ultraslim catheter-type peroral cholangioscope (UC-POCS, DRES Slim Scope; Japan Lifeline Co., Ltd, Tokyo, Japan) has been developed and used clinically [5]. The UC-POCS consists of a catheter-type sheath (outer diameter 2.3 mm) with two independent lumens and a high-resolution digital camera. The device can be used as a catheter for common bile duct (CBD) cannulation ([Fig. 1]). Herein, we report a case in which UC-POCS-assisted ETGBD was performed for acute cholecystitis.