While a TIA must by definition be associated with symptoms, strokes can also be asymptomatic or silent. The primary difference between a major stroke and the TIA's minor stroke is how much tissue death ( infarction) can be detected afterwards through medical imaging. A TIA is caused by a temporary disruption in blood flow to the brain, or cerebral blood flow (CBF). TIA causes the same symptoms associated with strokes, such as weakness or numbness on one side of the body, sudden dimming or loss of vision, difficulty speaking or understanding language, slurred speech, or confusion.Īll forms of stroke, including TIA, result from a disruption in blood flow to the central nervous system. Survival rate ~ 91% (to hospital discharge) 67.2% (five years) Ī transient ischemic attack ( TIA), commonly known as a mini-stroke, is a minor stroke whose noticeable symptoms usually end in less than an hour. Medical condition Transient ischemic attack
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