Bilateral vertebral artery dissection aneurysm involving the anterior spinal artery: A challenge in management

Abstract

Bilateral vertebral artery dissection aneurysm (VADA) is a rare intracranial aneurysm with complex structures near the posterior cranial fossa, making surgical treatment difficult. The management strategy for ruptured interlayers is still controversial, and the protection of collateral circulation during surgery is an important consideration. We report here a case of bilateral VADA with subarachnoid hemorrhage involving the anterior spinal artery, which was successfully treated through a strategy of unilateral VADA stent assisted coil embolization and a second-phase contralateral surgery.