title: Recanalisation of spontaneously occluded vertebral artery dissection after subarachnoid haemorrhage.
abstract: Spontaneous occlusion is a rare manifestation of ruptured vertebral artery dissection (VAD). Its natural history and treatment strategy have yet to be established due to its rarity. Here, we report five lesions involving spontaneous occlusion of VAD after subarachnoid haemorrhage, among which three lesions showed recanalisation. Based on our experience and previous reports, spontaneous occlusion of ruptured VAD can be classified into two groups-one group with occlusion in the acute stage with a high incidence of recanalisation and another group with occlusion in the chronic stage with a relatively low incidence of recanalisation. The underlying mechanism is likely different in each group, and treatment strategies should also be tailored depending on the pathophysiology.
authors.affiliation: Department of Neurosurgery, School of Medicine, Keio University, 35 Shinanomachi, Shinjuku, Tokyo, Japan. akiyamanor@a2.keio.jp
authors.forename: Takenori
authors.initials: T
authors.lastname: Akiyama
authors.forename: Satoshi
authors.initials: S
authors.lastname: Onozuka
authors.forename: Takashi
authors.initials: T
authors.lastname: Horiguchi
authors.forename: Kazunari
authors.initials: K
authors.lastname: Yoshida
mesh_terms: D017542:Aneurysm, Ruptured / Q000150:complications / Q000601:surgery; D015901:Angiography, Digital Subtraction; D002533:Cerebral Angiography; D002548:Cerebral Revascularization / Q000379:methods*; D057510:Endovascular Procedures / Q000379:methods*; D006261:Headache / Q000209:etiology; D006801:Humans; D006849:Hydrocephalus / Q000150:complications; D008297:Male; D008875:Middle Aged; D019635:Neurosurgical Procedures / Q000379:methods*; D013345:Subarachnoid Hemorrhage / Q000150:complications*; D020217:Vertebral Artery Dissection / Q000209:etiology* / Q000601:surgery*