According to the Mayo Clinic, “atrial fibrillation (‘AFib’) is an irregular and often rapid heart rate that can increase your risk of stroke, heart failure and other heart-related complications.” When a patient is experiencing AFib, the heart’s two upper chambers of the heart beat chaotically and irregularly, not in unison with the lower two chambers. The symptoms of AFib include, but are not limited to shortness of breath, weakness and heart palpitations.