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Blood is pumped by way of your coronary heart in only one direction. Heart valves play a key role on this one-way blood flow, opening and shutting with every heartbeat. Pressure changes on both side of the valves cause them to open their flap-like "doors" (referred to as cusps or leaflets) at simply the appropriate time, then close tightly to forestall a backflow of blood. There are four valves in the heart: tricuspid, pulmonary, mitral, and aortic. Within the United States, surgeons perform about 106,000 coronary heart valve operations annually. Nearly all of these operations are done to restore or replace the mitral or aortic valves. These valves are on the left side of the center, which works harder than the fitting. They management the circulate of oxygen-rich blood from the lungs to the remainder of the body. If valve injury is mild, docs might be able to deal with it with medicines. If injury to the valve is severe, surgical procedure to repair or replace the valve could also be needed.
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