Transient Ischemic Attack BlablaDoctor

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  • Posted By: Admin
  • Posted On: Jun 13, 2011
  • Views: 615
  • Likes: 1
  • Category: Health Groups » Neurology » Others Neuro Disorders
  • Description: A transient ischemic attack (abbreviated as TIA, often referred to as "mini stroke") is a transient episode of neurologic dysfunction caused by ischemia (loss of blood flow) - either focal brain, spinal cord or retinal - without acute infarction (tissue death). TIAs share the same underlying etiology (cause) as strokes; a disruption of cerebral blood flow. TIAs and strokes cause the same symptoms, such as contralateral paralysis (opposite side of body from affected brain hemisphere) or sudden weakness or numbness. A TIA may cause sudden dimming or loss of vision, aphasia, slurred speech and mental confusion. But unlike a stroke, the symptoms of a TIA can resolve within a few minutes or 24 hours. Brain injury may still occur in a TIA lasting only a few minutes. Having a TIA is a risk factor for eventually having a stroke or a silent stroke. A silent stroke or silent cerebral infarct differs from a TIA in that there are no immediately observable symptoms