HTA Details
Is Transient Ischemic Attack a Medical Emergency?
- Publication date
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2015-February-01
- Status
- Final
- Topic Area
- Neurological
- Recommendation
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Ontario Health Technology Advisory Committee Recommendation:
- The Ontario Health Technology Advisory Committee recommends that patients presenting with a transient ischemic attack with high-risk features or a minor stroke undergo a brain CT scan and initiation of antiplatelet therapy (provided this is not contraindicated) as soon as possible and no later than 24 hours after symptom onset, followed by other stroke prevention treatments tailored to each patient.
- Ministry Response
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The Ministry of Health and Long-Term Care endorses these recommendations.
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To read the full OHTAC Recommendation Report for this topic, contact our Health Innovation team using the contact form to request a digital copy.
A transient ischemic attack is a brief interruption of the blood supply to part of the brain. Symptoms are similar to a stroke: confusion, difficulty talking or seeing, dizziness, loss of balance, or sudden weakness or numbness on one side of the body. Many people do not seek medical help because the symptoms do not last long. But a transient ischemic attack can be a warning sign of a stroke in the very near future, with the risk of permanent damage or death.
Quickly assessing and treating someone who has had a transient ischemic attack is important to reduce his or her risk of stroke. Specialized clinics can provide this rapid care.
Supporting Documents
Last Updated: February 24, 2026
