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Transient Ischemic Attack (TIA) - What Happens
SYMPTOMS & TREATMENTS
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- What Happens
- What Increases Your Risk
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Symptoms of a transient ischemic attack (TIA) usually go away within 10 to 20 minutes, but some can last longer. If symptoms last longer than an hour, it might be more likely that you have had a stroke.
TIA symptoms, which are caused by a blood clot that temporarily reduces blood flow to the brain, disappear when the blood clot dissolves and blood flow returns.
A TIA is a warning sign that a stroke may soon follow. Any symptoms of a TIA need to be treated as an emergency.
- After a TIA, 3 to 17 out of 100 people will have a stroke in less than 90 days. The risk of stroke is highest in the first 30 days after a TIA.1
- Out of those people who have a stroke after a TIA, half have a stroke less than 48 hours after the TIA.1
A TIA also may signal an increased risk for a heart attack. Atherosclerosis, which is hardening of the arteries, affects blood vessels throughout the body, including arteries that supply blood to the heart and brain. Atherosclerosis that affects the blood vessels in the heart (coronary arteries) may cause chest pain or a heart attack.
| By: | Healthwise Staff | Last Revised: January 31, 2011 |
| Medical Review: | E. Gregory Thompson, MD - Internal Medicine Richard D. Zorowitz, MD - Physical Medicine and Rehabilitation | |
© 1995-2011 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated. This information does not replace the advice of a doctor. Healthwise, Incorporated disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. How this information was developed to help you make better health decisions.
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