Type 3 intestinal failure after bypass grafting for isolated acute superior mesenteric artery dissection: A case report

Özet

Isolated superior mesenteric artery (SMA) dissection is a very rare cause of mesenteric ischemia. A 66-year-old male patient was admitted toour emergency department with severe epigastric pain. He was diagnosed with spontaneous SMA dissection leading to intestinal ischemia.A bypass graft was used to relieve acute ischemia with an initial success. However, this success was not sustained, as the graft failedslowly despite a satisfactory technical appearance, leading to type 3 intestinal failure which could be explained by the competitive flow. Inconclusion, bypass grafting may yield short-term bowel viability in the treatment of isolated SMA dissection and acute ischemia; however,grafts may fail without radiologically apparent technical complications possibly due to the competitive flow from the collateralizing circuits.