ERCP is the primary choice for removal of common bile duct stone (CBDS) currently. However, 4-24% patients underwent recurrence after successful clearance of CBDS. Stone re-formation due to chronic inflammation of biliary duct is generally considered an important cause of CBDS recurrence, which is associated with duodenal-biliary reflux (DBR) after sphincterotomy. Although it was believed that DBR was the important cause of CBDS recurrence, the direct evidence was still lacking. Here we conducted a case control study to investigate the DBR rate in patients with recurrent CBDS after ERCP.
Study Type
OBSERVATIONAL
Enrollment
64
All eligible patients received standard barium meal examination, MRCP and enhanced abdominal CT.
Xijing Hospital of Digestive Diseases
Xi'an, Shaanxi, China
Duodenal-biliary reflux rate
The proportion of patients with barium reflux into bile duct during the standard barium meal examination.
Time frame: up to 6 months
Distal common bile duct angle
MRCP revealed the first angulation from the ampullary orifice along the course of the common bile duct stone.
Time frame: up to 6 months
Maximal CBD diameter
Maximal CBD diameter was determined by MRCP.
Time frame: up to 6 months
Peripapillary diverticulum
Peripapillary diverticulum was defined endoscopically as the presence of a diverticulum within a 2-cm radius from the papilla and was divided into 2 types in terms of the relation between the papilla and diverticulum: type A, papilla located on the inner rim of the diverticulum or papilla located deep within the diverticulum; and type B, papilla located outside the diverticulum.
Time frame: up to 6 months
Pneumobilia
Pneumobilia were determined by CT
Time frame: up to 6 months
This platform is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare professional.