主题词：Cardiac Imaging and Diagnostics; Cardiac electrophysiology and arrhythmias; Cardiac Arrhythmias and Treatments; Cardiovascular Function and Risk Factors; Acute Myocardial Infarction Research; Cardiac Valve Diseases and Treatments; Atrial Fibrillation Management and Outcomes; Cardiac pacing and defibrillation studies; Coronary Interventions and Diagnostics; Congenital Heart Disease Studies; Heart Failure Treatment and Management; Diverse Scientific and Economic Studies; Cardiac Structural Anomalies and Repair; Heart Rate Variability and Autonomic Control; Infective Endocarditis Diagnosis and Management; Blood Pressure and Hypertension Studies; Cardiovascular Effects of Exercise; Cardiovascular Syncope and Autonomic Disorders; Venous Thromboembolism Diagnosis and Management; Hemodynamic Monitoring and Therapy; Antiplatelet Therapy and Cardiovascular Diseases; Cardiac, Anesthesia and Surgical Outcomes; ECG Monitoring and Analysis; Cardiovascular and exercise physiology; Pulmonary Hypertension Research and Treatments