Biological heart valves, on the other hand, are made of natural tissue from human or animal donors. They are less durable than mechanical valves, with an average lifespan of 10-15 years, but they do not require lifelong anticoagulation therapy. Biological heart valves may be preferred for older patients or those with a higher risk of bleeding or other complications from anticoagulation therapy.
There are two main types of Prosthetic Heart Valves: homografts and xenografts. Homografts are valves taken from human donors, either from a cadaver or a living donor. They are typically used for patients who have already had one or more prosthetic heart valves fail or who are at a high risk for complications from other types of heart valve replacements. Homografts have the advantage of being made from human tissue, which makes them less likely to cause an immune response or rejection by the patient's body.
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