What is cardiology treatment? Cardiology: What it is, when it is needed, and what to expect Cardiology is the study and treatment of disorders of the heart and the blood vessels. A person with heart disease or cardiovascular disease may be referred to a cardiologist. Cardiology is a branch of internal medicine What is the best treatment for heart disease? Learn more about the best ways to manage and treat heart disease. Medications. Antiarrhythmics. Anticoagulants. Beta-blockers. Diuretics. Nitroglycerin. Cholesterol-lowering medications (statins) ... Surgeries, procedures. Atherectomy. Cardioversion therapy. Coronary artery bypass surgery. Heart valve surgery. Implantable pacemaker. Focuses on the diagnosis, treatment, and prevention of heart and cardiovascular conditions, including heart disease, hypertension, and cholesterol management.