There are two kinds of heart bypass surgery, one is beating heart bypass surgery. One is bypass surgery with cardiac arrest.
As the name implies, bypass surgery is to take the patient's own blood vessels (such as internal thoracic artery and great saphenous vein of lower limbs) or blood vessel substitutes to connect the distal end of the narrow coronary artery with the aorta, so that the blood can bypass the narrow part and reach the ischemic part, and improve the blood supply of myocardium, thereby achieving the purposes of relieving angina pectoris symptoms, improving heart function, improving the quality of life of patients and prolonging life.
This operation is called coronary artery bypass grafting, which establishes a smooth path between the aortic root filled with arterial blood and ischemic myocardium.
Therefore, some people call it "bridging" on the heart, commonly known as "bridging".