Allen Clay Brown, MD, is a cardiac electrophysiologist with Ascension Sacred Heart in Pensacola, Florida. Dr. Brown specializes in diagnosing and treating atrial fibrillation (AFib), a type of arrhythmia in which your heartbeat is irregular, either too fast or too slow. Other symptoms may include chest pain, sweating, fatigue, shortness of breath, and weakness. He starts by listening to understand you and uses diagnostic testing to help determine the cause of your irregular heartbeat. Then, Dr. Brown delivers non-surgical treatments to correct arrhythmias, irregular heart rhythms, and help prevent stroke.