Efficacy of e-learning using video content in improving trainees' biliary cannulation skills and understanding (with video).

Objectives: E-learning with video content was created to improve trainees' biliary cannulation techniques; this study aimed to evaluate its educational effect prospectively.

Methods: E-learning program was conducted using videos demonstrating biliary cannulation for 24 papillae, targeting trainees with 2-6 years of experience in endoscopic retrograde cholangiopancreatography. Ten consecutive cases of biliary cannulation for native papillae performed by trainees were prospectively assessed before and after the e-learning, respectively.