By Jim Miller
Each year, around 250,000 Americans have a “mini-stroke,” also known as a transient ischemic attack (TIA), but less than half of them realize what’s happening. That’s because the symptoms are usually fleeting — lasting only a few minutes, up to an hour or two — causing most people to ignore them or brush them off as no big deal.
But anyone who has had a mini-stroke is much more likely to have a full-blown stroke, which can cause long-term paralysis, impaired memory, loss of speech or vision and even death.
A mini-stroke is caused by a temporary blockage of blood flow to the brain and can be a warning sign that a major stroke may soon be coming. That’s why mini-strokes need to be treated like emergencies.
A person is more likely to suffer a TIA or stroke if they are overweight or inactive, have high blood pressure, elevated cholesterol or diabetes. Other factors that boost the risks are age (over 60), smoking, heart disease, atrial fibrillation and having a family history of stroke. Men also have a greater risk for stroke than women, and African Americans and Hispanics are at higher risk than those of other races.
The symptoms of a mini-stroke are the same as those of a full-blown stroke, but can be subtle and short-lived, and they don’t leave any permanent damage. They include any one or combination of the following:
• Sudden numbness or weakness of the face, arm or leg, especially on one side of the body.
• Sudden confusion, trouble speaking or understanding.
• Sudden trouble seeing in one or both eyes.
• Sudden trouble walking, dizziness, loss of balance or coordination.
• Sudden, severe headache with no known cause.
The easiest way to identify a stroke is to use the F.A.S.T. test to identify the symptoms.
F (Face): Ask the person to smile. Does one side of the face droop?
A (Arm): Ask the person to raise both arms. Does one arm drift downward?
S (Speech): Ask the person to say a simple sentence. Is their speech slurred?
T (Time): If you observe any of these signs of stroke, call 911.
If the doctor suspects a TIA, he or she will run a series of tests to determine what caused it and assess the risk of a future stroke. Once the cause has been determined, the goal of treatment is to correct the abnormality and prevent a full-blown stroke. Depending on the cause(s), the doctor may prescribe medication to reduce the tendency for blood to clot or may recommend surgery or a balloon procedure (angioplasty).
For more information on mini-strokes and how to recognize one, visit the American Heart Association/American Stroke Association at StrokeAssociation.org.
Jim Miller is the author of Savvy Senior, a column published by In Good Health every month.