In expert comment, performing the sphincterotomy for choledocholithiasis with acute cholangitis may increase bleeding and pancreatitis risks (from 2% to 10%). Therefore, investigators often perform biliary drainage in acute stage, and arrange 2nd session ERCP for stone removal later. However, in the recent study, single-stage endoscopic treatment may be still effective (stone removal rate 90%) and safe for mild to moderate acute cholangitis associated with choledocholithiasis. Investigators will carry out a prospective trial to analyze one-stage retrograde endoscopic common bile duct stone removal in mild and moderate cholangitis with choledocholithiasis to determine the safety, successful rate, and complications in these two groups.
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Post ERCP pancreatitis
Timeframe: After ERCP, an average of 7 days
Bowel perforation
Timeframe: After ERCP, an average of 7 days
Papillary bleeding
Timeframe: After ERCP, an average of 7 days
Success rate of stone removal
Timeframe: an average of 14 days.
Cost of hospitalization
Timeframe: From emergent department to the timing of being discharged, and an average of 30 days