RESUMO
This article aims to describe step-by-step technique performed with the aid of a video. We report the performance of an endoscopic approach to the biliary tract on 2 patients who had previously undergone duodenal switch (DS). It was successfully performed a laparoscopic-assisted transenteric endoscopic retrograde cholangiopancreatography (ERCP) in both the patients. Although successful experiences with ERCP after Roux-en-Y gastric bypass have been found, few cases of ERCP after DS have been reported. Nevertheless, this is the first study to include a multimedia video with description of details and all technical steps of the transenteric ERCP performed on 2 patients who had previously undergone DS. Transenteric access is a feasible technique for reaching the biliary tract through endoscopy after DS. This technique could avoid most invasive and risky procedures. However, it requires a high level of therapeutic endoscopic training.