Persistent atrial fibrillation means that episodes of the irregular heart rhythm last longer and often don't go away on their own. If an episode lasts more than 7 days, it is called persistent atrial fibrillation.
Treatment with medicine or cardioversion can restore a normal rhythm. This normal rhythm may last for several weeks or longer before atrial fibrillation happens again.
Rakesh K. Pai, MD, FACC - Cardiology, Electrophysiology & John M. Miller, MD, FACC - Cardiology, Electrophysiology
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