Areas of Focus

Atrial Fibrillation  

Atrial fibrillation is the most common arrhythmia, presenting with an irregular and often rapid heart rate that may increase the risk of stroke, heart failure, and other heart-related complications. 

During atrial fibrillation, the heart’s two upper chambers, or atria, beat chaotically, irregularly, and out of coordination with the two lower chambers, or ventricles. Atrial fibrillation symptoms often include heart palpitations, shortness of breath, and weakness.

Episodes of atrial fibrillation may come and go, or patients may have permanent atrial fibrillation. Although atrial fibrillation itself is not usually life-threatening, it is a serious medical condition. It may require emergency medical treatment and is associated with a significant increase in the risk of stroke and sudden cardiac death.


Prevalence estimates range from three to six million patients suffering from atrial fibrillation in the United States. Approximately 25% of these patients have paroxysmal atrial fibrillation, another 25% have persistent atrial fibrillation, and 50% have chronic or permanent atrial fibrillation.