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Parasites and Biliary stones

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Endoscopic retrograde cholangiopancreatography ١٢٦<br />

Reasons for failed ERCP<br />

Failure of cannulation<br />

Previous gastrectomy<br />

Periampullary diverticulum<br />

Previous whipple operation<br />

Previous roux-en-y choledochojejunostomy<br />

ERCP with oesophageal perforation<br />

Failure of extraction<br />

Impacted stone<br />

Incomplete stone clearance after multiple attempts<br />

Type II Mirrizi syndrome<br />

Relative common bile duct stricture<br />

Situs inversus<br />

Stent migration into common bile duct<br />

Repeated post-ERCP pancratitis<br />

Post-ES duodenal perforation<br />

Table (5): Reasons for failed endoscopic retrograde<br />

cholangiopancreatography (ERCP) (Tang et al., 2006)<br />

Complications of diagnostic <strong>and</strong> therapeutic ERCP:<br />

ERCP can cause a wide range of complications. In general,<br />

complications appear to be associated primarily with patients related<br />

factors <strong>and</strong> technical skill of the endoscopist (Freeman, 2002).

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