Heart Beat: January 2015

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The common heart rhythm disorder atrial fibrillation (AF) is associated with a twofold higher risk for silent cerebral infarctions (SCIs), known as silent strokes, according to research published online in Annals of Internal Medicine. A silent stroke is an injury to the brain usually caused by the temporary blockage of blood flow to the brain by a blood clot in an artery. Unlike a typical stroke, an SCI has no outward symptoms. A person having a silent stroke may not even be aware that its happening.
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