Coronary artery bypass grafting (CABG) is the most usual type of heart surgery. CABG boosts blood flow to the heart. Surgeons make use of CABG to treat people who have critical Coronary Heart Disease (CHD). For the heart to work well, blood should flow in only one direction. The heart's valves help to make this possible. Healthy valves open and close in a specific way as the heart pumps blood. Each valve has one set of flaps called leaflets. The leaflets open to allow blood to pass from one heart apartment into another or into the arteries. Then the leaflets close tightly to cease blood from flowing backward. Heart surgery is applied to fix leaflets that do not open as wide as they should. This can happen if they become thick or stiff or join. As a result, not enough blood flows through the valve. This Heart Congress scientific program has been CME and CPD certified.