Mesenteric vascular insufficiency and claudication following acute dissecting thoracic aortic aneurysm.

Mesenteric vascular insufficiency and claudication of the left leg were observed in a patient 6 weeks after intraluminal aortic prosthesis placement for acute type III thoracic aortic dissection. Aortography revealed double-channel deformity of the thoracoabdominal aorta and complete occlusion of the celiac axis, inferior mesenteric artery, and left common iliac artery. An aortobi-iliac interposition graft placed end to end with an additional limb to the common hepatic artery was curative.