Quick Large Balloon Dilatation for Removal of Large Bile Duct Stones (SHODBADI)

This study is planned as a multicenter Scandinavian prospective study including all the patients >18 years with >10mm diameter common bile duct stones visible in cholangiogram. Before ERCP all patient will be informed about this trial, and if they agree to participate this study, they need to give a written informed consent. The endoscopists will decide whether the first step will be large EST and stone extraction or small EST and dilatation. If simple EST does not success, the dilatation will remain as a rescue method. The diameter of dilatation balloon cannot exceed the diameter of common bile duct above the papilla. Cholangiogram is followed when papilla is dilated and the dilatation will be ended when the waist of the papilla disappears. The duration of the dilatation measured, but it does not define the ending of dilatation. All adverse events will be recorded one month and a year after the procedure.

Classification of the patients:

• EST and stone extraction
• EPLBD when EST and stone extraction did not succeed
• Short EST and EPLBD

The investigators will collect the information of adverse events such as bleeding, pancreatitis, cholangitis with patient questionnaire as well as from the patient records one month and a year after the procedure

Inclusion criteria

• Age >18 years
• Common bile duct stone >10mm diameter

Exclusion criteria

• Altered anatomy after surgery (B II, Roux-en-Y reconstruction)
• Common bile duct cysts
• Acute pancreatitis
• Distal common bile duct stricture or tumor
• Coagulation disorders
• Ongoing coagulation medication
• Pregnancy
• Inability to give an informed consent