Predictive model of persistent choledocholithiasis in patients with acute biliary pancreatitis.

Background: Choledocholithiasis causing acute biliary pancreatitis (ABP) may migrate to the duodenum or persist in the common bile duct (CBD). We developed a model for predicting persistent choledocholithiasis (PC) in patients with ABP.

Methods: This retrospective cohort study included 204 patients, age ≥18 years (mean age: 73 years, 65.