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 per cent, respectively) are caused by compromised collateral circulation to the colon and rectum, usually as a result of arteriosclerotic disease of the superior and inferior mesenteric arterial systems, as well as the hypogastric arteries Patients who have colorectal ischemia after operations for abdominal aortic aneurysms have diarrhea (sometimes bloody), 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. Prevention of this complication is aided by preservation of primary and collateral circulation, avoidance of hypotension, and preoperative bowel preparation.

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