Cerebral malperfusion is a serious complication of acute aortic dissection type A(AADA), and the best strategy for its management remains unclear. A 71-year-old woman was brought to our hospital because of consciousness disorder and right hemiplegia. Contrast-enhanced CT showed AADA and occlusion of the left common carotid artery. As the symptoms gradually improved and CT showed flow in the left distal carotid artery, we prioritized central repair by total arch replacement and Frozen Elephant Trunk with deep hypothermia and antegrade cerebral perfusion (ACP). Although the ACP cannula did not go into the left common carotid artery and we eventually had to do a left intra-carotid bypass, she was discharged home without any symptoms. It is acceptable that we give the priority to central repair over direct carotid artery re-perfusion when her symptoms improve. Besides we have to perform carotid bypass if the malperfusion is remains.

A 61-year-old male presented to another hospital with sudden chest and back pain, and CT revealed a diagnosis of type A acute aortic dissection with patent false lumen. The ascending aortic diameter was 45 mm and the right common carotid artery was occluded. There were no neurological abnormalities, no pericardial effusion, and only mild AR. Eight hours after onset, the patient was transferred to our hospital. The laboratory data showed severe DIC with fibrinogen <50 mg/dl, so that medical DIC treatment was given first because of the high risk of bleeding. Twenty-two hours after the onset, DIC improved and surgery was initiated. The right common carotid artery was ligated for fear of thrombus dispersion at the periphery of the occlusion site. An ascending arch replacement was then performed. Postoperative hemostasis was good, and no new neurological abnormalities were observed. Usually, type A acute aortic dissection is indicated for emergency surgery, but in this case, DIC treatment took precedence. We report here a rare experience.