Contact Us Education Developed by experts, these patient information sheets have quick and simple explanations and answers to heart related questions. Click below to learn more about the following heart-related topics. ATRIAL FIBRILLATION (AFIB) Atrial Fibrillation (AFib) and Sleep Apnea: What You Need to Know Atrial Fibrillation (AFib) and Stroke Prevention: Anticoagulants Atrial Fibrillation (AFib) Treatment Adherence Cardiac Resynchronization Therapy (CRT) Catheter Ablation Electrophysiology (EP) Study End of Life and Heart Rhythm Devices Heart Diseases and Disorders Heart Tests Implantable Cardioverter Defibrillators (ICDs) Pacemakers Rapid Heartbeat Remote Monitoring of Cardiac Devices Risk Factors and Prevention Signs and Symptoms Slow Heartbeat Substances That Can Cause Heart Rhythm Disorders Sudden Cardiac Death The Normal Heart Wearable Cardioverter Defibrillator (WCD) Treatments