Dr. Mansour is Professor of Medicine at Harvard Medical School. He is also Director of the Atrial Fibrillation Program and the inaugural incumbent of the Jeremy Ruskin and Dan Starks Endowed Chair in Cardiology at the Massachusetts General Hospital. He is an active clinical consultant in all aspects of heart rhythm disorders, including atrial fibrillation, ventricular tachycardia, supraventricular tachycardia, bradycardia and other abnormal rhythms. Dr. Mansour performs a large number of catheter ablation procedures, and implants pacemakers and defibrillators to treat different arrhythmias. He has published extensively in the field of cardiac arrhythmia, specifically the area of atrial fibrillation. Additionally, Dr. Mansour is involved in cutting-edge research and currently participating in the development of new catheters for the treatment of atrial fibrillation.