A Case of Aneurysmal SAH and Stanford Type A Acute Aortic Dissection: A Case Report.

We report a concurrent case of aneurysmal subarachnoid hemorrhage and acute aortic dissection. A 47-year-old woman presented to our hospital unconscious. Subarachnoid hemorrhage was diagnosed by brain computed tomography on arrival. Computed tomography angiography revealed 2 aneurysms in the right internal carotid artery. Computed tomography angiography from the cervical to thoracic regions, which was initially performed to inspect the access route for interventional radiology, demonstrated the presence of Stanford type A acute aortic dissection. Neck clipping and total aortic arch replacement were performed for the 2 aneurysms and the acute aortic dissection, respectively. Only a few reports have described the coexistence of acute aortic dissection and subarachnoid hemorrhage. Managing these 2 pathologies requires a thorough evaluation of each therapeutic strategy and careful management of the patient's systemic and neurological conditions. We believe our case report enhances the understanding of this specific pathological condition and will provide valuable insights for treating future patients with similar conditions.