Vertebrobasilar Atherothrombotic Disease Follow-up

Updated: Oct 05, 2016
  • Author: Eddy S Lang, MDCM, CCFP(EM), CSPQ; Chief Editor: Robert E O'Connor, MD, MPH  more...
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  • Basilar artery occlusion is a rare but devastating complication of vertebrobasilar atherothrombotic disease (VBATD).

  • It is associated with a 75-85% mortality rate and high rate of neurovegetative states in survivors.



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  • Vertebrobasilar TIAs (ie, VBI) generally may have a more favorable prognosis than carotid territory TIAs because the risk of developing a completed stroke is less. Collateral circulation may account for improved outcome in these patients.

  • Lateral medullary infarction (Wallenberg syndrome) is characterized by persistent symptoms that last for years.