Xenografts, on the other hand, are valves taken from animals, usually pigs or cows. They are treated to remove any cells or other materials that might cause an immune response in the patient's body. Xenografts are typically used for patients who are not good candidates for homografts or mechanical valves, such as those with a history of bleeding or other complications. However, they have a higher risk of causing an immune response or rejection, and they may not be as durable as other types of prosthetic heart valves.
Another type of Prosthetic Heart Valves is the transcatheter aortic valve replacement (TAVR), which is a minimally invasive procedure that can be used to replace a damaged aortic valve. TAVR involves inserting a catheter through a small incision in the groin and threading it up to the heart. A new valve is then inserted through the catheter and placed inside the damaged valve. TAVR is typically used for patients who are not good candidates for open-heart surgery, such as those who are elderly or have other medical conditions that make surgery too risky.
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