title: Brain AVM characteristics and age.
abstract: OBJECTIVE
  To explore angioarchitectural features of brain arteriovenous malformations (BAVMs) in ages.
  
  
  METHODS
  302 Consecutive patients with BAVMs between 1999 and 2008 were retrospectively reviewed. Univariate analysis was used to test initial presentation and BAVM characteristics in different ages.
  
  
  RESULTS
  Patients ranged in age from 5 to 65 years (mean±SD, 28.3±12.8). One hundred and eighty-eight were male and 113 female. Clinical presentations were hemorrhage (52.6%), seizure (24.5% of patients), headache (12.6%), focal neurological deficit (6.3%), or other clinical events, including incidental BAVM diagnoses (4.0%). Increasing age correlated positively with coexisting arterial aneurysms (P=0.044). No differences were found for sex, initial presentation, BAVM size, BAVM location, arterial feeders and venous drainage pattern between each age groups.
  
  
  CONCLUSIONS
  Increasing age correlated positively with coexisting arterial aneurysms. No statistical significance was observed for clinical presentations, and BAVM characteristics among age groups.
authors.affiliation: First Affiliated Hospital of Liaoning Medical University, Jinzhou, 121001, China.
authors.forename: Junsheng
authors.initials: J
authors.lastname: Luo
authors.forename: Xianli
authors.initials: X
authors.lastname: Lv
authors.forename: Chuhan
authors.initials: C
authors.lastname: Jiang
authors.forename: Zhongxue
authors.initials: Z
authors.lastname: Wu
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000368:Aged; D000375:Aging; D002648:Child; D002675:Child, Preschool; D002681:China / Q000453:epidemiology; D015897:Comorbidity; D005260:Female; D006801:Humans; D002532:Intracranial Aneurysm / Q000000981:diagnostic imaging / Q000453:epidemiology; D002538:Intracranial Arteriovenous Malformations / Q000000981:diagnostic imaging* / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011859:Radiography; D018570:Risk Assessment; D012307:Risk Factors; D055815:Young Adult