Vertebral artery hypoplasia: a predisposing factor for posterior circulation stroke?

Neurology. 2007 Jan 2;68(1):65-7. doi: 10.1212/01.wnl.0000250258.76706.98.

Abstract

We determined in 725 sequentially admitted first-ever stroke patients, using color-coded duplex flow imaging of the V2 segment, whether vertebral artery hypoplasia (VAH) (diameter < or = 2.5 mm) was more frequent (13%) in posterior circulation territory infarction (247) than in strokes in other territories (4.6%). This difference is significant (p < 0.001), whereas all other risk factors (hypertension, hyperlipidemia, diabetes, smoking) were equally (p > 0.05) distributed. Patients with VAH may be predisposed to stroke in the posterior circulation.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Brain Infarction / diagnostic imaging
  • Brain Infarction / etiology
  • Brain Infarction / pathology
  • Cerebral Arterial Diseases / complications
  • Cerebral Arterial Diseases / diagnostic imaging*
  • Cerebral Arterial Diseases / pathology
  • Female
  • Humans
  • Male
  • Middle Aged
  • Risk Factors
  • Stroke / diagnostic imaging*
  • Stroke / etiology
  • Stroke / pathology
  • Ultrasonography
  • Vertebral Artery / diagnostic imaging*
  • Vertebral Artery / pathology*