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Transient Ischemic Attack (TIA) - What Happens

A transient ischemic attack (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, up to 10 out of 100 people will have a stroke in the next two days. And up to 17 out of 100 people will have a stroke within 90 days.1 The risk of stroke is highest in the first 30 days after a TIA.
  • A TIA happens before 15 out of 100 strokes.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.

Recommended Related to Stroke

Understanding Stroke -- Prevention

Measures that reduce the chances of stroke are the same as those for avoiding a heart attack. Adopt habits that promote cardiovascular health and deter atherosclerosis (hardening of the arteries). The essentials of a healthy lifestyle include a balanced diet; controlling weight; monitoring blood pressure and cholesterol levels; limiting alcohol; and not smoking. A few other tips to prevent stroke: Get appropriate medical treatment of atrial fibrillation. This heartarrhythmia can increase the...

Read the Understanding Stroke -- Prevention article > >

    This information is produced and provided by the National Cancer Institute (NCI). The information in this topic may have changed since it was written. For the most current information, contact the National Cancer Institute via the Internet web site at http:// cancer .gov or call 1-800-4-CANCER.

    WebMD Medical Reference from Healthwise

    Last Updated: March 12, 2014
    This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.
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