Is It A Stroke or A TIA?
A ministroke is a term sometimes used to refer to what is medically called a transient ischemic attack or TIA. Ischemic means there is not enough oxygen being delivered to a tissue.
A transient ischemic attack occurs when the blood supply to the brain is interrupted, temporarily limiting the oxygen supply to the brain. A TIA is essentially a brief stroke with symptoms that appear and then disappear on their own, usually within minutes.
The signs and symptoms of a TIA occur suddenly and are the same as those with an acute stroke:
In contrast to a true stroke, a TIA leaves no permanent neurological damage after the signs and symptoms spontaneously resolve.
TIAs are also sometimes called "warning strokes" since they are warning signs that a person is at risk for a more serious, true stroke. In fact, about a third of people who have TIAs eventually have a serious stroke. About half of these strokes strike within a year of the TIA.