Endovascular Treatment of Isolated Posterior Inferior Cerebellar Artery Dissecting Aneurysms: Parent Artery Occlusion or Selective Coiling?

摘要

Purpose Isolated posterior inferior cerebellar artery dissecting aneurysms are rare lesions. Their underlying pathology, presentation, and natural history are poorly understood. Their treatment is controversial, and few data are available regarding the best treatment. We conducted the first study comparing selective coiling and parent artery occlusion for the treatment of isolated PICA dissecting aneurysms. Methods All patients harboring isolated PICA dissecting aneurysms treated between January 2006 and October 2012, in a single center, were retrospectively evaluated. Patients were consecutively submitted either to selective coiling or parent artery occlusion. The safety and durability (recanalization and rebleeding rates) of each treatment were established. In order to compare the results of both treatment modalities, we also performed a literature search of all cases of isolated PICA dissecting aneurysms endo-vascularly treated.