[A case of type A dissecting aneurysm who are complicated by paraplegia at the 4th day after emergent operation].

The 62-year-old man was admitted to our hospital with chief complaints of chest and back pain. He was diagnosed type A acute dissecting aneurysm by chest computed tomography, and underwent urgent operation, replacement of the ascending aorta and resuspension of the aortic valve. He was recovered without any neurologic complications. However, he was complicated by paraplegia at the 4th postoperative day. We suspect that is due to early thrombotic occlusion of the false lumen where the anterior spinal arteries branch by the operation.