Transient ischaemic attack (mini-stroke)
Also called: TIA, Mini-stroke
This can be a medical emergency. Treat as an emergency even if symptoms have gone.
Stroke symptoms that resolve completely, usually within minutes, because a clot dissolves before causing permanent damage. It is a warning: the risk of a full stroke is highest in the following days.
Condition-specific references are below. Individual claims and this page have not been clinically reviewed. Read about this content.
Causes
- Temporary blockage of a brain artery by a clot or plaque fragment
Risk factors
- Same as stroke
Symptoms
- Sudden one-sided weakness or numbness
- Speech disturbance
- Temporary loss of vision in one eye (amaurosis fugax)
- Symptoms resolve fully
Diagnosis — tests and examinations
- Urgent specialist assessment
- MRI brain
- Carotid imaging
- ECG and heart rhythm monitoring
- Blood tests
Treatment
Medicines and medical treatment
- Aspirin immediately, often dual antiplatelets for 21 days
- Statin and blood-pressure control
- Anticoagulation if atrial fibrillation is found
Operations and procedures
- Carotid endarterectomy within 2 weeks for significant stenosis
Self-care, home remedies and lifestyle
- Do not drive until cleared
- Address all vascular risk factors
Possible complications
- Stroke (up to 10% within 90 days without treatment)
Prevention
- Same as stroke prevention
Outlook
Urgent treatment reduces the risk of subsequent stroke by about 80%.
When to see a doctor
Treat as an emergency even if symptoms have gone.
Sources and further reading
These sources cover this condition. They have not been checked against every statement on this page.
Related conditions
Educational overview, not medical advice. Treatment varies by person and location. Consult a qualified health professional for diagnosis or care. Read our content and model notes and privacy information.