Abstract
Objective To investigate whether endoscopic nasobiliary drainage （ENBD） after endo- scopic stone extraction could reduce post-operative complications. Methods Retrospective analysis of 697 patients with extrahepatic duct stones undergoing ERCP treatment was performed. They were assigned to ENBD group （ n = 538） and control group （ n = 159）. Post-operative complications including pancreatitis, cholangitis and bleeding were observed and compared. Results There were no significant differences in incidence of pancreatitis and bleeding between 2 groups. Incidence of cholangitis in ENBD group was signifi- cantly lower than that in control group （ 1.3% vs. 3.8%, P 〈 0.05 ）. Conclusion ENBD after endoscopic stone extraction could reduce the incidence of postoperative cholangitis. Key words: Choledocholithiasis ; Postoperative complications ; Cholangiopancreatography, endoscopic retrograde; Endoscopic nasobiliary drainage
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