What is a Transient Ischemic Attack? - Oren Zarif - Transient Ischemic Attack
A transient ischemic attack (TIA) is a relatively minor occurrence that does not lead to permanent brain damage. It is, however, an important warning sign of a full-blown stroke. Treatment for TIAs includes medication, lifestyle changes, and sometimes surgery. It is important to see a doctor right away if you suspect that you have experienced a TIA. Here are some of the symptoms you should be aware of.
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The classic definition of a transient ischemic attack (TIA) is a sudden onset of neurologic dysfunction that occurs without acute infarction. It is also limited to a specific area of the brain perfused by a particular artery. Symptoms of a TIA include hemiparesis, hemiparesthesia, and dysarthria or dysphasia. In fact, many TIAs are considered warning strokes.
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Risk factors for a TIA include age, heredity, and ethnicity. Those with a family history of stroke are also at an increased risk. People who smoke and drink are at a greater risk of a TIA. If a TIA is diagnosed, treatment may be necessary to lower the risk of another stroke. If a TIA is suspected, the physician will look for risk factors for stroke.
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The cause of a TIA is almost identical to that of a stroke. When platelets stick to plaque in the arteries, they form a blood clot and lodge there. This blockage restricts oxygen-rich blood to the brain. The affected part of the brain is without oxygen only for a few minutes. Once the clot breaks up, the affected part of the brain is back to normal.
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Because a TIA does not last long, many people mistake it for a stroke. While symptoms can be the same, it is important to get a doctor's diagnosis and treatment as soon as possible. A TIA is a warning sign of a stroke and should be treated as quickly as possible. In addition, if symptoms continue to occur, it may be a warning sign of a more serious condition.
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Although a TIA will not cause permanent damage, it is an important warning sign of another, more serious condition: major stroke. Although a TIA will not cause permanent brain damage, it can serve as a precursor to a major stroke. TIA risk factors are similar to those that lead to a stroke, and some are preventable. Treatment depends on the cause of the TIA. There is no specific cure for a TIA.
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TIA symptoms appear abruptly, are often bright and go away before a doctor can examine the person. In contrast, stroke symptoms may occur slowly or have precursors. The clinical picture is similar, but stroke is a more severe variant of blood flow dysfunction that leads to hypoxia. It is important to see a doctor right away if you suspect that you've suffered from a TIA. You should also seek emergency medical attention if you suspect a stroke.
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While transient ischemic attacks can progress to a full stroke, treatment for TIAs is aimed at preventing a complete stroke. Patients should be referred to an emergency room immediately if they show symptoms of this type of stroke. A delayed response to treatment can lead to further damage and even an irreversible condition. The TIA is an important warning sign, but if it is not treated promptly, it can lead to a stroke.