Early Rebleeding after Internal Trapping of a Ruptured Vertebral Artery Dissecting Aneurysm: A Case Report

aneurysms of the vertebrobasilar system has been reported to account for 4.5% of intracranial SAH (1). Since ruptured VA dissecting aneurysms are associated with a higher incidence of rebleeding (2, 3), early diagnosis and treatment are required (4). Due to its lower invasiveness and good outcomes, endovascular treatment has been considered an alternative treatment modality for ruptured VA dissecting aneurysms (5-7). Concomitant occlusion of the dissecting aneurysm and the parent artery with detachable coils (internal trapping) is considered a fairly effective treatment method for VA dissecting aneurysms in their acute stage(4), with a high success rate and a low complication rate(4, 7). Here we present a case of early rebleeding from a vertebral dissecting aneurysm after internal trapping, along with a literature review.