A transient ischemic attack (TIA), also known as a mini-stroke, is a problem in the blood vessels of the brain that causes a temporary decrease in blood flow to a certain brain region. TIAs can serve as both a warning of a future stroke and an opportunity to prevent it. About 1 in 3 people who have a TIA will eventually have a stroke, with about half occurring within a year after the TIA. The signs and symptoms of a TIA resemble those found early in a stroke and may include sudden onset of:
- Weakness, numbness, or paralysis in the face, arm, or leg, typically on one side of the body.
- Slurred or garbled speech or difficulty understanding others.
- Blindness in one or both eyes or double vision.
- Dizziness or vertigo.
- Loss of coordination or clumsiness.
- Nausea and vomiting.
- Neck stiffness.
- Emotional instability and personality changes.
TIAs usually last a few minutes, and most signs and symptoms disappear within an hour, though rarely symptoms may last up to 24 hours. Since TIAs most often occur hours or days before a stroke, seeking medical attention immediately following a possible TIA is essential. If you suspect youve had a TIA, seek immediate medical attention. Prompt evaluation and identification of potentially treatable conditions may prevent a stroke.
