Transient Ischemic Attack vs Stroke – What is the difference?

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.

Verifiziert von Dr. Petya Stefanova

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