Colorectal infarction following resection of abdominal aortic aneurysms

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Abstract
Infarctions of the colon and rectum (incidences approximately 1 and 0.5%, respectively) are caused by compromised collateral circulation to the colon and rectum due to arteriosclerotic disease of the superior and inferior mesenteric arterial systems and the hypogastric arteries. Patients who have colorectal ischemia after operations for abdominal aortic aneurysms have diarrhea, abdominal pain and distention. The diagnosis may be established by sigmoidoscopic examination. Treatment includes surgical removal of the compromised bowel and creation of a temporary or permanent end colostomy. This complication may be prevented by preserving primary and collateral circulation, avoiding hypotension and preoperative bowel preparation.