Sidebar
Heart bypass
Heart bypass surgery, also known as coronary artery bypass grafting (CABG), is a surgical procedure used to treat coronary artery disease (CAD). CAD occurs when the blood vessels supplying oxygen-rich blood to the heart become narrowed or blocked due to the buildup of plaque (atherosclerosis). Heart bypass surgery creates new pathways, or bypasses, for blood to flow to the heart muscle, bypassing the blocked arteries.