Which scope is appropriate for endoscopic retrograde cholangiopancreatography after Billroth II reconstruction: An esophagogastroduodenoscope or a colonoscope?

Figure 1 Target of this study. In all, 60 cases of endoscopic retrograde cholangiopancreatography (ERCP) after Billroth II were performed. Among them, 44 cases were first procedures performed by esophagogastroduodenoscopy (EGDS) or colonoscopy (CS) after gastrectomy. Seventeen patients who underwent the first ERCP procedure by EGDS were included in the EGDS group. Twenty-seven patients who underwent the first ERCP procedure by CS were included in the CS group. ERCP: Endoscopic retrograde cholangiopancreatography; EGDS: Esophagogastroduodenoscopy; CS: Colonoscopy; B II: Billroth II.