A Case of Gallstone Ileus Following Endoscopic Sphincterotomy / 대한소화기내시경학회지

ABSTRACT

Gallstone ileus is caused by mechanical obstruction of the gastrointestinal tract by the gallstone and accounts for 1~3% of all intestinal obstructions. Endoscopic sphincterotomy (EST) is the accepted treatment of choice for choledocholithiasis. Recognized complications of EST include bleeding, acute pancreatitis, retroperitoneal perforation. However, gallstone ileus is a rare complication of EST. A 70-year-old woman was admitted to our hospital with right upper quadrant pain. Abdominal ultrasound revealed single common bile duct (CBD) stone. ERCP was performed to remove the large CBD stone without mechanical lithotripsy. Nausea, vomiting and abdominal pain were developed after stone removal. Plain abdomen X-ray and computerized tomography represented marked dilatation of small bowel loops without definite obstructive lesion. Because the mechanical obstruction was sustained, explorolaparotomy was performed. On the operation, single stone was impacted at the distal ileum, narrowed by previous radiotheraphy. We reported a case of gallstone ileus after the removal of CBD stone following EST without lithotripsy.