Thursday, December 27, 2012
A.D.A.M. Medical Encyclopedia.
A transient ischemic attack (TIA) is when blood flow to a part of the brain stops for a brief period of time. A person will have stroke-like symptoms for up to 24 hours, but in most cases for 1 - 2 hours.
A TIA is felt to be a warning sign that a true stroke may happen in the future if something is not done to prevent it.
Causes, incidence, and risk factors
A TIA is different than a stroke. After a TIA, the blockage breaks up quickly and dissolves. Unlike a stroke, a TIA does not cause brain tissue to die.
The loss of blood flow to an area of the brain can be caused by:
- A blood clot in an artery of the brain
- A blood clot that travels to the brain from somewhere else in the body (for example, from the heart)
- An injury to blood vessels
- Narrowing of a blood vessel in the brain or leading to the brain
High blood pressure is the number one risk for TIAs and stroke. The other major risk factors are:
- Diabetes
- Family history of stroke
- Increasing age, especially after age 55
- Race (African Americans are more likely to die from stroke)
People who have heart disease or poor blood flow in their legs caused by narrowed arteries are also more likely to have a TIA or stroke.
Wednesday, December 26, 2012
Monday, December 24, 2012
Saturday, December 22, 2012
Friday, December 21, 2012
Power To End Stroke was created in 2006 by the American Heart Association/American Stroke Association to help reach the ASA mission to reduce stroke and risk of stroke. It was also meant to raise critical awareness within the African American population. Heart disease and stroke are major health risks for all people, but African Americans are at particularly high risk. Consider this:
- Blacks have almost twice the risk of first-ever strokes compared to whites.
- Blacks have higher death rates for stroke compared to whites.
- The prevalence of high blood pressure in African Americans in the United States is the highest in the world.
Power To End Stroke is working. Cause participants are seeing a health impact. They are living healthier lives, being more active, eating better, and seeing physical results. For example, a recent survey showed that:
- 55% Modified their diet to eat more heart healthy food
- 52% Increased amount of physical exercise
- 54% Had blood pressure checked
- 45% Had cholesterol checked
- 37% Encouraged someone else to talk to their doctor about stroke
By joining forces with Power To End Stroke and the AHA, you can help us make an even bigger impact.
http://www.powertoendstroke.org/about-movement.html
Wednesday, December 19, 2012
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Wednesday, December 12, 2012
Tuesday, December 11, 2012
Ischemic strokes are the most common type
schemic Stroke
The most common type of stroke is known as an ischemic stroke. Nearly nine out of 10 strokes fall into this category. The culprit is a blood clot that obstructs a blood vessel inside the brain. The clot may develop on the spot or travel through the blood from elsewhere in the body.
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