Cardiothoracic surgery is the field of medicine involved in the surgical care of organs within the chest that are usually concerned with heart and lung disorders. Separate surgical specialties include cardiac surgery and thoracic surgery. Cardiovascular surgery is cardiac surgeons conduct surgery on the heart. This is usually performed to treat ischemic disease symptoms, to correct congenital heart disease, or to treat valvular heart disease from different causes, including rheumatic heart disease, atherosclerosis, and endocarditis. Cardiac transplantation also falls into this group. Cardiothoracic surgery is the treatment of organs within the thoracic cavity by operation. Cardiac surgery and thoracic surgery are different specialties. Bi-pass cardiac surgery is an surgical procedure in which the cardiac is opened and operation is carried out on the heart s internal constructions. The procedure is done using minimally invasive surgical tool.