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Comparison of potential risks between intracranial and extracranial vertebral artery dissections

Dong Hoon Shin1, Ji Man Hong, Jin Soo Lee

  • 1Department of Neurology, Gachon University Gil Medical Center, Incheon, South Korea.

European Neurology
|March 26, 2014
PubMed

Insights

Intracranial vertebral artery dissection (VAD) is more common in the nondominant artery and near the PICA orifice. Risk factors include no trauma history, hypertension, and aging.

Area of Science:

  • Neurology
  • Vascular Surgery
  • Radiology

Background:

  • Vertebral artery dissection (VAD) poses potential risks.
  • Understanding differences between intracranial and extracranial VAD is crucial.

Purpose of the Study:

  • To compare intracranial and extracranial VADs.
  • To identify risk factors for each type of VAD.

Main Methods:

  • Analysis of 74 VAD patients confirmed by angiography over 9 years.
  • Categorization into intracranial or extracranial VAD.
  • Multivariate analysis to determine predictors.

Main Results:

  • VAD more frequent in the nondominant vertebral artery (66.2%).
  • Intracranial VAD commonly occurred near the posterior inferior cerebellar artery (PICA) orifice.
  • Independent predictors for intracranial VAD included absent trauma history, hypertension, and older age.

Conclusions:

  • Intracranial VAD is frequent and vulnerable at PICA and nondominant VA locations.
  • Absent trauma history, hypertension, and aging are associated with intracranial VAD.
  • VAD formation may differ based on intracranial or extracranial involvement.
Abstract

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