Small bowel infarction complicating intra-aortic balloon counterpulsation via the ascending aorta.

A case of small bowel infarction owing to balloon-induced thrombosis of the superior mesenteric artery is described. The tendency of thrombosis to occur when the balloon is inserted via the ascending aorta is discussed. This possibility necessitates obtaining lateral roentgenograms of the balloon tip before closure of the sternum.