Quality in Endoscopic Retrograde Cholangiopancreatography—Incidence and Predictive Factors of Adverse Events

Abstract Background and Aims Incidence of endoscopic retrograde cholangiopancreatography (ERCP)-related adverse events varies between endoscopy units. We aimed to identify factors related to successful bile duct (BD) cannulation and to determine the incidence and predictive factors of post-ERCP adverse events. Methods About 1103 ERCPs were evaluated from a prospective database over a 4-year period and 57 were excluded: age Results Out of 1046 ERCPs analyzed, successful cannulation rate of native papilla of Vater was 91.3% (n = 639). Guidewire-assisted BD cannulation and choledocholithiasis were associated with higher native papilla cannulation rates (P = 0.02 and P Conclusion Choledocholithiasis is associated with a higher cannulation rate while malignant biliary stricture and acute gallstone pancreatitis are associated with a lower BD cannulation rate. Patients with native papilla have a significantly higher risk of PEP with the only factor associated with PEP being 2 or more unintentional pancreatic duct cannulations.