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A stroke is a when there’s a sudden focal neurological deficit due to a part of the brain losing its blood supply.
If it arises from the heart, it’s called cardioembolic, and that usually occurs in the setting of atrial fibrillation.
That’s because in atrial fibrillation, blood stagnates in the atria and can become clotted.
That clot can then travel up to the blood vessels supplying the brain.
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