Biliary Endoscopy in Altered Anatomy.

Endoscopic retrograde cholangiopancreatography (ERCP) is the standard treatment of biliary disease with high success rates of greater than 90% in patients with standard anatomy. However, alterations in upper gastrointestinal anatomy can significantly complicate endoscopic biliary intervention. The past decade has seen significant advances in the endoscopic management of patients with altered anatomy. This review article will provide tips and tricks for successful biliary access in the most common surgical alterations with a focus on the management of biliary diseases following Roux-en-Y (RY) reconstructions.