Acute coronary syndrome; Angina; Arrythmia (abnormal heart beat); Atherosclerosis; Cardiology imaging; Cardiometabolic conditions; Congenital heart disease; Coronary artery disease; Echocardiography; Heart failure in adults and children; Hypertension; Interventional cardiology; Intravascular ultrasound (IVUS); Percutaneous Coronary Intervention (elective & emergency); Pericardiocentesis; Peripheral vascular disease; Temporary pacemaker implantation; Valvular heart disease