Resumo
Purpose; Bile duct injury (BDI) is a catastrophic complication of cholecystectomy, and misidentification of the cystic anatomy is considered to be the main cause. Although several techniques have been developed to prevent BDI, such as the critical view of safety, the infundibular technique, the rates remain higher during laparoscopic cholecystectomy (LC) than during open surgery. We, here, propose a practical new strategy for ductal identification, that can help to prevent laparoscopic bile duct injury.; Methods; A retrospective study of 5539 patients who underwent LC from March 2007 to February 2019 at a single institution was conducted. The gallbladder infundibulum was classified by its position located on an imaginary clock with the gallbladder neck as the center point of the dial, 3-oclock position as cranial, 6-oclock as dorsal, 9-oclock as caudal, and 12-oclock as ventral, as well as the axial position. Patient demographics, pathologic variables and infundibulum classification were evaluated. Detailed analysis of ductal identification based on gallbladder infundibulum position was performed in this study. All infundibulum positions were recorded by intraoperative laparoscopic video or photographic images.; Results; All the patients successfully underwent LC during the study period. No conversion or serious complications such as biliary injury occurred. Gallbladders with infundibulum of 3-oclock position, 6-oclock position, 9-oclock position, 12-oclock position, axial position were 12.3%, 23.4%, 28.0%, 4.2%, and 32.1%, respectively. The 3-oclock and 12-oclock position were pitfalls that might cause biliary injury.; Conclusion; The gallbladder infundibulum as a navigator is useful for ductal identification to reduce BDI and improve the safety of LC.(AU)