Rate of Duodenal-biliary Reflux Increases in Patients With Recurrent Common Bile Duct Stones

December 1, 2015 updated by: Yanglin Pan, Air Force Military Medical University, China

Rate of Duodenal-biliary Reflux Increases in Patients With Recurrent Common Bile Duct Stones: Direct Evidence From Barium Meal Examination

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 Overview

Study Type

Observational

Enrollment (Actual)

64

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Shaanxi
      • Xi'an, Shaanxi, China, 710032
        • Xijing Hospital of Digestive Diseases

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with history of recurrent common bile duct stone (recurrent group) and non-recurrent common bile duct stone (control group) in Xijing Hospital of Digestive Diseases were invited to participate the study. All the patients underwent successful stone removal by ERCP previously. Patients in the control group were matched with the recurrence group by age and gender at 1:1 ratio.

Description

Inclusion Criteria:

  • Patients with common bile duct stone underwent successful stone removal by ERCP in Xijing Hospital of Digestive Diseases.

Exclusion Criteria:

  • Gallbladder stones or hepatolithiasis;
  • Stenosis of biliary duct;
  • Incomplete common bile duct stone removal by ERCP;
  • Common bile duct stent;
  • Unable to provide informed consent.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Recurrent group
Patients with history of recurrent common bile duct stone after successfully ERCP stone remove.
All eligible patients received standard barium meal examination, MRCP and enhanced abdominal CT.
Control group
Patients without history of recurrent common bile duct stone after successfully ERCP stone remove.
All eligible patients received standard barium meal examination, MRCP and enhanced abdominal CT.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Duodenal-biliary reflux rate
Time Frame: up to 6 months
The proportion of patients with barium reflux into bile duct during the standard barium meal examination.
up to 6 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Distal common bile duct angle
Time Frame: up to 6 months
MRCP revealed the first angulation from the ampullary orifice along the course of the common bile duct stone.
up to 6 months
Maximal CBD diameter
Time Frame: up to 6 months
Maximal CBD diameter was determined by MRCP.
up to 6 months
Peripapillary diverticulum
Time Frame: up to 6 months
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.
up to 6 months
Pneumobilia
Time Frame: up to 6 months
Pneumobilia were determined by CT
up to 6 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2013

Primary Completion (Actual)

December 1, 2013

Study Completion (Actual)

January 1, 2014

Study Registration Dates

First Submitted

December 20, 2014

First Submitted That Met QC Criteria

December 31, 2014

First Posted (Estimate)

January 1, 2015

Study Record Updates

Last Update Posted (Estimate)

December 2, 2015

Last Update Submitted That Met QC Criteria

December 1, 2015

Last Verified

December 1, 2015

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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