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Clinical features

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Clinically, basilar artery stroke features are divided into: Prodromal symptoms - stuttering brainstem stroke - including:

  • transient diplopia
  • visual field loss
  • intermittent memory loss
  • brain stem symptoms e.g. vertigo, ataxia, paresis, paraesthesia

Following occlusion there is:

  • reduced level of conscious progressing to coma
  • bilateral motor and sensory loss - often in all limbs
  • cerebellar signs
  • cranial nerve palsies - dependent upon the precise level of occlusion

Occlusion of the basilar artery at it's origin produces lateral midbrain, thalamic, occipital and medial temporal lobe infarction.

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