Science Questions

What is atrial fibrillation?

Sat, 31st Mar 2007

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Question

Tony in Essex asked:

What is atrial fibrillation?

Answer

The heart's rhythm is regulated by a metronome.  Some people can develop a chaotic rhythm of that metronome, where by the top part of the heart can become chaotic and the heartbeat becomes irregular.  This means that instead of beating regularly like a drum the heart can jump all over the place.

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