Atrial Fibrillation (AFib) causes the heart’s two upper chambers to beat irregularly and too fast. Typically, small cells give off electric signals that cause the heart to beat steadily. An electrocardiogram (ECG) can measure if the signals are elevated or are within a normal range.
Damage to the structure of the heart is the most common cause of arterial fibrillation.
The following conditions can cause AFib:
Signs and symptoms of arterial fibrillation include:
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