The Facts


Atrial Fibrillation (AF) is the most common cardiac rhythm disorder found in more than 3 million Americans. It is described as an irregular heart rhythm originating in the top chambers of the heart, called atria, causing ineffective contractions of the lower chambers of the heart, the ventricles. AF causes a 20% decrease in the pumping efficiency of the heart. It has a major impact on a person’s quality of life and can be a predisposition to heart failure and stroke.