Table 1.

Inclusion and exclusion criteria

Inclusion criteria

Clinical and radiological findings fulfilling indication for cholecystectomy due to gallstone

Clinical and radiological findings fulfilling indication for ERCP due to CBDS

Adult, ≥ 18 yr

Informed consent

Exclusion criteria

Acute or chronic pancreatitis

Acute cholangitis

Acute cholecystitis

Antiinflammatory medication

Failure to perform cholangiography

Pancreatic or biliary cancer

Prior ERCP with sphincterotomy

Conversion from laparoscopic to open cholecystectomy

ERCP: Endoscopic retrograde cholangiopancreatography; CBDS: Common bile duct stones.