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What Causes Atrial Fibrillation? (0:50)

In people with atrial fibrillation, of AF for short, a chaotic electrical signal in the upper part of the heart produces a change in heart rhythm. Watch this animation to see how this happens.

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What Causes Atrial Fibrillation?

What Causes Atrial Fibrillation? (0:50)

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What Causes Atrial Fibrillation?

What Causes Atrial Fibrillation? (0:50)

Read Transcript

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