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Medical InfoNovember 5, 20253 min read

What Is a Stroke?

რა არის ინსულტი?

There are two main types of stroke, caused by different mechanisms:

  1. Ischemic Stroke (most common — about 87%)Cause:blockage of an artery supplying the brain by a blood clot (thrombus) or other debris. This stops blood flow to a brain region (ischemia).
  2. Hemorrhagic StrokeCause:rupture of a blood vessel in the brain, causing bleeding within or around brain tissue. Often results from high blood pressure (hypertension) or rupture of an aneurysm.
  3. Transient Ischemic Attack (TIA — “mini-stroke”)• A temporary interruption of blood flow causing stroke-like symptoms that resolve completely (usually within 24 hours). TIA is a serious warning sign of a possible future major stroke.

Stroke Symptoms: Act FAST!

Time is critical in stroke management. The faster you respond, the better the outcome. Use theFAST test (Face, Arms, Speech, Time):

  • F (Face):Ask the person to smile. Does one side of the face droop?
  • A (Arms):Ask them to raise both arms. Does one arm drift downward?
  • S (Speech):Ask them to repeat a simple phrase. Is their speech slurred or strange?
  • T (Time):If any symptom appears, call emergency services immediately!

Additional signs:

  • Sudden severe headache with no known cause.
  • Sudden blurred or lost vision in one or both eyes.
  • Sudden dizziness, loss of balance or coordination.

Diagnosis and Treatment

Diagnosis:Established through neurological examination and brain imaging (CT or MRI) to determine stroke type (ischemic or hemorrhagic) and location of damage.

Treatment:

  • Ischemic Stroke:Thrombolysis:intravenous administration of medication that dissolves the clot. Most effective within the first few hours (“golden window”).Thrombectomy:mechanical removal of the clot via a catheter (endovascular approach).
  • Hemorrhagic Stroke:Treatment focuses on stopping bleeding and controlling intracranial pressure. Neurosurgical intervention is often required.

Prevention: Control Risk Factors

Most strokes can be prevented. Key modifiable risk factors include:

  • High blood pressure (the most important factor)
  • Diabetes and high cholesterol
  • Smoking and excessive alcohol use
  • Heart diseases (e.g., atrial fibrillation)
  • Physical inactivity and obesity

Tip:Regular medical check-ups and a healthy lifestyle significantly reduce stroke risk.

Rehabilitation

Recovery after stroke is a long process. Multidisciplinary rehabilitation is crucial:

  • Physical therapy
  • Occupational therapy
  • Speech therapy

Rehabilitation helps restore lost functions and greatly improves the patient's quality of life.

Stroke is a serious challenge, but timely action and treatment can greatly reduce its devastating effects. Remember FAST — this knowledge could save a life!