Transient Ischemic Attack (TIA)

Update @0.20: Transient ischemic attack is now defined as a transient episode of neurologic dysfunction caused by focal brain, spinal cord or retinal ischemia without acute infarction.
Time-based definition of TIA is inadequate because there is risk of permanent tissue injury (i.e., infarction) even when focal transient neurologic symptoms last less than one hour.
Transient Ischemic Attack
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Video: • Transient Ischemic Att...