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What is paroxysmal atrial fibrillation?

Atrial fibrillation is arrhythmia that occurs due to an irregularity in the heart’s atria, causing them to beat out of sync with the ventricles. Paroxysmal atrial fibrillation is an early sign of a heart condition and is defined as atrial fibrillation that starts and stops without any regularity. It can develop into persistent atrial fibrillation if left untreated.

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