Let’s explore the differences between a transient ischemic attack (TIA) and a stroke:
1. Transient Ischemic Attack (TIA):
- Also known as a “mini-stroke.”
- Temporary disruption of blood flow to part of the brain.
- Symptoms typically last less than an hour, although sometimes they may linger for up to 24 hours.
- No permanent damage to the brain occurs during a TIA.
- Imaging tests (such as MRI) do not show an obstruction to blood flow in the brain.
- Considered a warning sign because it indicates an increased risk of a more serious stroke in the future.
- Urgent medical attention is still necessary after a TIA to identify underlying causes and reduce stroke risk.
2. Stroke (Cerebrovascular Accident, CVA):
- Disruption of blood flow to brain tissue.
- Two main types:
– Ischemic Stroke: Caused by a blood clot blocking a blood vessel supplying the brain. Most common type.
– Hemorrhagic Stroke: Caused by the rupture of a blood vessel in the brain.
- Symptoms can include:
– Weakness or numbness (usually on one side of the body).
– Difficulty speaking or understanding language.
– Lack of coordination or balance.
– Sudden, severe headache.
– Trouble seeing with one or both
- Imaging tests (CT or MRI) reveal abnormalities associated with stroke.
- Stroke recovery depends on the affected brain region and extent of damage.
In summary:
- TIA: Temporary, no permanent damage, imaging shows no obstruction.
- Stroke: Longer-lasting symptoms, potential permanent damage, imaging reveals abnormalities.
References:
(1) Stroke vs. TIA or Ministroke: How Do They Differ? – Healthline. https://www.healthline.com/health/stroke/stroke-vs-tia.
(2) The Difference Between Transient Ischemic Attack (TIA) and Stroke. https://www.mercyone.org/health-and-wellness/health-answers/brain-and-spine/the-difference-between-transient-ischemic-attack-tia-and-stroke.
(3) Differences Between a Stroke and a TIA – Verywell Health. https://www.verywellhealth.com/stroke-vs-tia-3146300.
(4) Transient ischemic attack (TIA) – Symptoms and causes. https://www.mayoclinic.org/diseases-conditions/transient-ischemic-attack/symptoms-causes/syc-20355679.
Verified by Dr. Petya Stefanova
