It is performed by cardiac surgeons of heart. It also include the field of medicine involved in surgical treatment of heart diseases. To treat valvular heart disease from various causes including endocarditis, rheumatic heart disease and atherosclerosis, Cardiac Surgery is applied which includes heart transplantation.The most common type of heart surgery for adults is coronary artery bypass grafting, in which a healthy artery or vein from the body is connected, or grafted, to a blocked coronary (heart) artery.Traditional way of heart surgery is done by opening the chest wall and then operating the heart. However, newer methods of heart surgery includes the insertion of a cardiac devise by making a small cut between the ribs instead of cutting the chest wall or breastwall.