what is a heart bypass surgery
Heart bypass surgery, also called coronary artery bypass graft (CABG) surgery, is a treatment for coronary artery disease or atherosclerosis. Heart bypass surgery involves the creation of a new route for blood to flow around narrowed or blocked coronary arteries. Your coronary arteries are the blood vessels that supply your heart muscle with blood. The newly created route is made with a graft. A graft is a healthy blood vessel taken from other places in your body. Atherosclerosis is a common cause of narrowed or blocked coronary arteries.