Tissue Valve Tissue valves are created from animal donors' valves or animal tissue that's strong and flexible. Tissue valves can last 10 to 20 years, and usually don't require the long-term use of medication. 9 февр. 2021 г.
How long will a bovine heart valve last?
While new technologies are being designed and tested, cow valve replacements typically last between 10-20 years. The main advantage of mechanical valves is that they are very durable and expected to last the life of the patient.
How long will a porcine heart valve last?
Pig heart valves used as replacements typically last 10-15 years in a paitent. Recent reports from the Cleveland Clinic suggest that newer pig valves often last 17 years or longer. The American Heart Association states that pig valves can last up to 20 years.
How long does a biological valve last?
Biological valves, which are most often made from pig or cow tissue, don't increase the risk of bleeding or clotting, but they wear out within about 10 to 15 years, making a second surgery likely.
How often does a heart valve need to be replaced?
Most will need to be replaced in 10 to 20 years. The tissue can be taken from animals or cadavers. A third option is the Ross procedure, a surgery that replaces a defective aortic valve with the patient's own pulmonary valve.
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