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Toast classification in acute ischemic stroke

The TOAST (trial of ORG 10172 in acute stroke treatment) classification denotes five sub types of ischaemic stroke.

  • large-artery atherosclerosis (embolus / thrombosis)*
  • cardioembolism (high-risk / medium-risk)*
  • small-vessel occlusion (lacune)*
  • stroke of other determined aetiology *
  • stroke of undetermined aetiology

It is thought to carry good inter observer agreement and predict prognosis, outcome, and management


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