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replacement heart valve

a replacement heart valve is made of plastic, metal, or animal tissue and is implanted to replace a person's original heart valve. a replacement valve can be implanted during an open-heart surgery or a minimally invasive procedure. these valves are also called mechanical valves or tissue valves.

a person's heart valve may be replaced if it no longer works properly because of a birth defect or because of damage caused by a disease or aging.

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