Online Articles: Technical ReportsTransenteric ERCP for Treatment of Choledocholithiasis After Duodenal SwitchMarchesini, João C.D. MSc*; Noda, Rafael W. MD*; Haida, Vitor M. MD*; Medeiros, Rodrigo C.d.L. BSc†; Sadowski, Silvano MD*; Galvão Neto, Manoel MSc‡; Marchesini, João B. PhD*; Campos, Josemberg M. PhD† Author Information *Clínica Marchesini, Curitiba, PR †Federal University of Pernambuco, Recife ‡Gastro-Obeso-Center Advanced Surgical Institute, São Paulo, Brazil The authors declare no conflicts of interest. Reprints: Josemberg M. Campos, PhD, Federal University of Pernambuco, Vigário Barreto Street, 127/802—Graças, 52020-140 Recife, PE, Brazil (e-mail: [email protected]). Surgical Laparoscopy, Endoscopy & Percutaneous Techniques: June 2017 - Volume 27 - Issue 3 - p e28-e30 doi: 10.1097/SLE.0000000000000397 Buy SDC Metrics Abstract 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. Copyright © 2017 Wolters Kluwer Health, Inc. All rights reserved.