EVOLUTION OF HEART-VALVE REPAIR
BY STEPHANIE STEMMLER
Study the anatomy of a human heart, and you’ll notice there are four chambers and four valves that work sequentially to move blood into the heart and then out into the body. As the heart contracts and relaxes, its valves work in a set order, opening and closing to ensure that blood flows in one direction. Advances made in cardiology and heart surgery now allow specialists to repair or replace any of the heart valves using a variety of techniques, including minimally invasive surgery.
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