title: Ruptured intracranial aneurysm following gamma knife surgery for acoustic neuroma.
abstract: A-63-year-old woman underwent gamma knife surgery (GKS) for acoustic neuroma. Six years later, she suffered sudden onset of severe headache followed by a disturbance of consciousness and subarachnoid haemorrhage due to a ruptured aneurysm originating from the distal anterior inferior cerebellar artery. The aneurysm was not located at a branching site and was included within the radiation field. The aneurysm was treated by endovascular embolization, and now, 15 months later, the patient has recovered satisfactorily. This is the first report of aneurysm formation following GKS for acoustic neuroma.
authors.affiliation: Department of Neurosurgery, Brain Research Institute, Niigata University, Niigata-City, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Takao
authors.forename: M
authors.initials: M
authors.lastname: Fukuda
authors.forename: T
authors.initials: T
authors.lastname: Kawaguchi
authors.forename: K
authors.initials: K
authors.lastname: Nishino
authors.forename: Y
authors.initials: Y
authors.lastname: Ito
authors.forename: R
authors.initials: R
authors.lastname: Tanaka
authors.forename: M
authors.initials: M
authors.lastname: Sato
mesh_terms: D001488:Basilar Artery / Q000473:pathology / Q000503:physiopathology / Q000528:radiation effects*; D002533:Cerebral Angiography; D004621:Embolization, Therapeutic; D005260:Female; D006261:Headache / Q000209:etiology; D006801:Humans; D007049:Iatrogenic Disease / Q000517:prevention & control; D002532:Intracranial Aneurysm / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology; D008875:Middle Aged; D009464:Neuroma, Acoustic / Q000601:surgery*; D011183:Postoperative Complications / Q000209:etiology* / Q000473:pathology / Q000503:physiopathology; D011300:Preoperative Care / Q000592:standards; D011829:Radiation Dosage; D016634:Radiosurgery / Q000009:adverse effects*; D013345:Subarachnoid Hemorrhage / Q000209:etiology / Q000473:pathology / Q000503:physiopathology; D014057:Tomography, X-Ray Computed; D016896:Treatment Outcome