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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, 9 to 17 out of 100 people will have a stroke in less than 90 days.1 The risk of stroke is highest in the first 30 days after a TIA.
  • A TIA happens before about 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

How Atherosclerosis Causes Half of All Strokes

Having a stroke is one of the most frightening prospects of aging. Strokes can come on suddenly, stealing the use of an arm or the ability to speak. A stroke can be fatal or leave us permanently disabled. About half of all strokes are caused by atherosclerosis -- the same process of narrowing and hardening of the arteries that causes heart attacks. Atherosclerosis progresses silently, without symptoms, putting our brains and our independence at risk. Reducing the risk factors for atherosclerosis...

Read the How Atherosclerosis Causes Half of All Strokes article > >

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WebMD Medical Reference from Healthwise

Last Updated: February 05, 2013
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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