The majority of people experience premature heart contractions at various points without any issues or complications. Despite this, continuous and serious bigeminy may raise the risk of developing other arrhythmias, including atrial fibrillation, which involves the upper chambers of the heart beating in a different pattern than the lower ones. This can cause blood to pool in the atria and form a clot, eventually leading to a stroke. Continuous arrhythmia may also cause the heart to overwork itself, resulting in enlargement or heart failure.

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