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Reference Terms
from Wikipedia, the free encyclopedia


A stroke or cerebrovascular accident (CVA) occurs when the blood supply to a part of the brain is suddenly interrupted.

In brain tissue, a reduction of blood flow, cerebral ischemia, leads to an ischemic cascade that can damage or kill brain cells.

Stroke is diagnosed through several techniques.

Note:   The above text is excerpted from the Wikipedia article "Stroke", which has been released under the GNU Free Documentation License.
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October 23, 2016

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updated 12:56 pm ET