Case COnference - Dr. Allen
• Aortoenteric fistula is the abnormal formation of connection between the aorta and bowel, typically occurring the 4th portion of the duodenum.
• Primary fistula formation due to atherosclerotic or infectious erosion of aorta into the bowel; secondary is the result of complications of aortic graft placement, either graft infection or pressure necrosis.
• Typically present with “sentinel bleed” followed by massive GI bleed and hemodynamic collapse; classic triad occurs <25% of patients.
• Vascular surgery consultation emergently if suspected; CT angiography can be helpful, but only after consultation and surgical evaluation.
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