How is ischemic stroke categorized?

Updated: May 27, 2020
  • Author: Edward C Jauch, MD, MS, FAHA, FACEP; Chief Editor: Helmi L Lutsep, MD  more...
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The system of categorizing stroke developed in the multicenter Trial of ORG 10172 in Acute Stroke Treatment (TOAST) divides ischemic strokes into the following 3 major subtypes [2] :

  • Large-artery

  • Small-vessel, or lacunar

  • Cardioembolic infarction

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