Cardiovascular medicine for heart discomfort. The main causes of heart discomfort include diseases of the cardiovascular system (e.g. coronary atherosclerotic heart disease, myocardial infarction, etc.), heart valve diseases (e.g. mitral stenosis, aortic stenosis, etc.), cardiac muscle diseases (e.g. hypertrophic cardiomyopathy, dilated cardiomyopathy, etc.), cardiac circuitry abnormalities (e.g. premature heartbeats, atrial fibrillation, atrioventricular block, etc.), as well as structural and neurological problems in the heart, and so on. Any of these causes of cardiac discomfort can be treated in the Department of Cardiovascular Medicine, where ECG and ultrasound tests are performed under the supervision of a doctor to determine the cause of the cardiac discomfort, and symptomatic treatment is provided under the guidance of the clinician. When the patient has heart discomfort, it is important to consult a doctor in a timely manner, so as not to delay the condition.