what is a heart bypass
Heart bypass surgery, also known as coronary artery bypass surgery, aims to replace damaged arteries in the heart. A surgeon uses blood vessels from another area of the body to repair the damaged arteries. This surgery is used when the coronary arteries become blocked or damaged. The coronary arteries supply the heartâs muscles with oxygenated blood. If they are blocked or the flow of blood is restricted, the heart canât function properly. This can lead to heart failure.