title: Microsurgery for ruptured cerebellar arteriovenous malformations.
abstract: OBJECTIVE
  To summarize the clinical features of ruptured cerebellar arteriovenous malformations (AVMs) and to explore surgical methods and outcomes in ruptured cerebellar AVM patients.
  
  
  METHODS
  In the past 14 years, 67 patients with cerebellar AVMs were treated at our institution, accounting for 14.9% of the total vascular malformation patients in our department. In this study, we retrospectively analyzed the clinical characteristics, operation indication, surgery techniques, and prognoses of these cases.
  
  
  RESULTS
  Among the 67 AVM cases, the distribution of Spetzler-Martin grades was 32 Grade I, 14 Grade II, 13 Grade III, 5 Grade IV, and 3 Grade V cases. Microsurgical treatment was carried out via the retrosigmoid approach or suboccipital midline approach. After the surgery, the distribution of GOS grades was 60 Grade V, 3 Grade IV, 1 Grade III, 2 Grade II, and 2 Grade I cases.
  
  
  CONCLUSIONS
  Microsurgical removal should be performed in ruptured cerebellar AVM patients as early as possible once the preoperative and postoperative preparations were done. Good surgical effects were obtained by using proper surgery techniques and the right protection of critical cerebral structures. Patients with a GCS grade of ≥ 8 showed good recovery, but patients with a grade of < 8 had poor prognoses.
authors.affiliation: The First Affiliated Hospital of Shenzhen University, Shenzhen, P.R. China. jtpptj@163.com.
authors.forename: S-F
authors.initials: SF
authors.lastname: Gong
authors.forename: X-B
authors.initials: XB
authors.lastname: Wang
authors.forename: Y-Q
authors.initials: YQ
authors.lastname: Liao
authors.forename: T-P
authors.initials: TP
authors.lastname: Jiang
authors.forename: J-B
authors.initials: JB
authors.lastname: He
authors.forename: X-J
authors.initials: XJ
authors.lastname: Wang
authors.forename: J-J
authors.initials: JJ
authors.lastname: Ding
authors.forename: Y-Z
authors.initials: YZ
authors.lastname: Gao
authors.forename: W-P
authors.initials: WP
authors.lastname: Li
mesh_terms: D000293:Adolescent; D000328:Adult; D001164:Arteriovenous Fistula / Q000000981:diagnostic imaging* / Q000601:surgery*; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging* / Q000601:surgery*; D008297:Male; D008866:Microsurgery / Q000379:methods* / Q000592:standards*; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D012422:Rupture, Spontaneous / Q000000981:diagnostic imaging / Q000601:surgery; D016896:Treatment Outcome; D055815:Young Adult