[Emergency distal arch replacement for traumatic thoracic aortic dissection with subarachnoid hemorrhage].

A 77-year-old woman was transferred as traumatic thoracic aortic dissection with subarachnoid hemorrhage soon after a traffic accident. Her consciousness was slightly compromised and cardiogenic shock was developed. Serial computed tomography (CT) scans revealed an unchanging subarachnoid hemorrhage and a progressive mediastinal hemorrhage and pericardial effusion due to traumatic type B aortic dissection. An emergency distal arch replacement was performed under cardiopulmonary bypass 4 hours after the injury. She woke up 3 days after the operation without progression of subarachnoid hemorrhage on a cerebral CT scan. She was discharged 36 days after the injury.