A Case of Superior Mesenteric Arterial Dissection Associated with Stanford Type B Acute Aortic Dissection

We report a case of superior mesenteric arterial revascularization by bypass grafting between the right external iliac artery and the superior mesentery artery for intestinal ischemia by the superior mesenteric arterial dissection associated with Stanford type B, DeBakey type III b acute aortic dissection. The patient was 48-year-old man with Marfan's syndrome. He had received aortic root replacement with a composite graft 10 years ago. He suffered from sudden back pain and severe abdominal pain. Contrast enhanced computed tomography revealed the superior mesenteric arterial dissection accompanied by Stanford type B acute aortic dissection. We performed bypass grafting using the greater saphenous vein between the right external iliac artery and the superior mesentery artery. A year later, we performed replacement of the descending thoracic aorta. The vein graft is patent, and he has been doing well since the operation.