Biliary manometry in patients with common bile duct stones and juxtapapilary duodenal diverticulum

Abstract

Objective To explore the impact of juxtapapilary duodenal diverticulum on the formation of choledocholithiasis and biliary manometry after surgery. Methods The clinical data of 97 patients with common bile duct stones who successfully underwent ERCP and biliary manometry treatment from May 2011 to March 2014 were retrospectively analyzed. Ninty-seven common bile duct stone patients were divided to two groups, that is, 52 cases of juxta-papilary duodenal diverticulum (experimental group) and 45 cases without juxta-papilary duodenal diverticulum (control group). The biliary manometric results before and after EST of both groups were compared. Results The basal pressure of sphincter Oddi of the experimental group before EST[(84.8±26.1)mmHg]was higher than that of the control group before EST[(75.5±14.6)mmHg](P 0.05). The biliary manometry was performed in 81 patients after one month and it was found that the basal pressure of sphincter Oddi of experimental group was still higher than that of the control group[(34.8±17.1) mmHg VS (29.6±15.3)mmHg, P<0.05]. The biliary pressure of common bile of the experimental group was higher than that of the control group[(19.9±11.2)mmHg VS (17.1±13.1)mmHg, P<0.05]. Conclusion The existence of juxtapapilary duodenal diverticulum increases the pressure of common bile duct and Oddi sphincter and leads to CBD stones. Key words: Biliary manometry; Juxta-papilary duodenal diverticulum; Cholangiopancreatography, endoscopic retrograde; Choledocholithiasis; Sphincter of Oddi pressure; Common bile duct pressure