open-heart surgery in which the rib cage is opened and a section of a blood vessel is grafted from the aorta to the coronary artery to bypass the blocked section of the coronary artery and improve the blood supply to the heart
heart surgery in which a coronary bypass is performed on the beating heart by the use of small instruments and cameras threaded through small incisions
heart surgery in which a coronary bypass is performed by the use of small instruments and tiny cameras threaded through small incisions while the heart is stopped and blood is pumped through a heart-lung machine