Double balloon endoscopy increases the ERCP success rate in patients with a history of Billroth II gastrectomy

Figure 1 Fluoroscopy showing the long afferent loop and the major papilla that could not be reached by duodenoscope (A), the long afferent loop that could be shortened by double balloon endoscope and the papilla that could be reached (B-D), stones found after biliary cannulation (E) and endoscopic papillary balloon dilation (F), and stones removed using the balloon (G, H).