The Treatment Effect for Asymptomatic Common Bile Duct Stone
Trial Parameters
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Brief Summary
This study is prospective, multicenter study for identify the characteristics of asymptomatic common bile duct stones and effectiveness of treatment.
Eligibility Criteria
Inclusion Criteria: * diagnosed as common bile duct stone by image modality examination * agreement for this study enrollment Exclusion Criteria: * no definite common bile duct stone by image modality examination * symptomatic patients who complain with fever/abdominal pain that compatible with common bile duct stone related symptom * previously diagnosed as pancreatobiliary malignancy * previously treated by endoscopic or percutaneous treatment for bile duct stones * severe cardio or pulmonary disease * pregnancy or possibility of pregnancy * who do not agree with study enrollment