Abstract:Objective To study the influencing factors of post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP).Methods The clinical data of 343 patients who underwent ERCP from February 2018 to February 2021 were retrospectively analyzed. And divided into PEP group (n = 51) and non-PEP group (n = 292) according to the occurrence of pancreatitis. The related factors for the occurrence of PEP were analyzed, and Logistic regression method was used to analyze the risk factors, and preventive countermeasures were proposed for the risk factors.Results There were statistically significant differences between the two groups in gender, age < 60 years, history of common bile duct stones, pancreatitis, Oddi sphincter dysfunction, pancreatic development, pancreatic duct sphincterotomy, sphincterometry of Oddi, ERCP outcome, difficulty in intubation and multiple insertion of the guide wire into the pancreatic duct (P < 0.05). By Logistic regression analysis showed that choledocholithiasis, history of pancreatitis, Oddi sphincter dysfunction, pancreas development, pancreatic duct sphincterotomy, Oddi sphincter pressure, ERCP failure, difficult intubation and multiple insertion of the guide wire into the pancreatic duct were indeperdent risk facteros of PEP (P < 0.05).Conclusion Choledocholithiasis, history of pancreatitis, Oddi sphincter dysfunction, pancreatic development, pancreatic duct sphincterotomy, Oddi sphincter manometry, ERCP failure, difficulty in intubation and multiple insertion of the guide wire into the pancreatic duct were independent risk factors of PEP.