Did you know that more than 3 million Americans are affected by atrial fibrillation? Atrial fibrillation, which is also referred to as AF or AFib, is the most common irregular or abnormal heart rhythm disorder. It decreases the heart’s pumping ability and can make the heart work less efficiently. In addition, patients must be aware that AFib can lead to potentially life-threatening problems such as blood clots and a higher risk of stroke.