title: Selective cannulation of the cystic duct at time of ERCP.
abstract: Although the cystic duct can sometimes be cannulated at ERCP, no one has attempted a prospective study of how often this can be done, nor have the potential indications been evaluated. Accordingly, 50 consecutive patients with a variety of pancreaticobiliary conditions were studied prospectively. In 86% of the patients, free cannulation of the common bile duct was accomplished; in 74%, the cannula could be inserted selectively into the cystic duct. Such direct access to the gallbladder may lead to: 1) better gallbladder visualization at time of ERCP, 2) retrieval of pure gallbladder bile for culture and sensitivity on chemical analysis, and 3) gallstone dissolution or extraction.
mesh_terms: D001660:Biliary Tract Diseases / Q000175:diagnosis; D002102:Cadaver; D002404:Catheterization / Q000379:methods; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000379:methods*; D003135:Common Bile Duct; D003549:Cystic Duct; D005069:Evaluation Studies as Topic; D006801:Humans; D010182:Pancreatic Diseases / Q000175:diagnosis; D011446:Prospective Studies