Types. Atrial fibrillation is a type of arrhythmia. There are four main types of atrial fibrillation—paroxysmal, persistent, long-term persistent, and permanent atrial fibrillation . The type of atrial fibrillation that you have depends on how often atrial fibrillation occurs and how it responds to treatment.
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Paroxysmal AFib are episodes of AFib that occur occasionally and usually stop spontaneously . Episodes can last a few seconds, hours or a few days before stopping and returning to normal sinus rhythm, which is the heart’s normal rhythm. Some people may have single episodes of AFib.
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