Resource: Medline Plus
Stroke - Also called: Brain attack
A stroke is a medical emergency. Strokes happen when blood flow to your brain stops. Within minutes, brain cells begin to die. There are two kinds of stroke. The more common kind, called ischemic stroke, is caused by a blood clot that blocks or plugs a blood vessel in the brain. The other kind, called hemorrhagic stroke, is caused by a blood vessel that breaks and bleeds into the brain. "Mini-strokes" or transient ischemic attacks (TIAs), occur when the blood supply to the brain is briefly interrupted.
Symptoms of stroke are
- Sudden numbness or weakness of the face, arm or leg (especially on one side of the body)
- Sudden confusion, trouble speaking or understanding speech
- Sudden trouble seeing in one or both eyes
- Sudden trouble walking, dizziness, loss of balance or coordination
- Sudden severe headache with no known cause
If you have any of these symptoms, you must get to a hospital quickly to begin treatment.
National Institute of Neurological Disorders and Stroke
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(National Institute of Neurological Disorders and Stroke)
Medline Plus (2008). Stroke. Retrieved September 29, 2008, from http://www.nlm.nih.gov/medlineplus/stroke.html#cat2