5 doctors weighed in:
Why will my tissue aortic valve replacement only last for 7-12 years, especially because my original lasted 65 years?
5 doctors weighed in

Dr. Scott Mackinnon
Anesthesiology
2 doctors agree
In brief: Foreign material
A tissue (pig or cow) or "bioprosthetic"(synthesized from natural tissue such as pericardium) generally lasts 7-12 years(with some variability) because, unlike your native valve, is foreign to the body.
It is susceptible to certain stresses that your own valve wasn't. They are safe, however, and improve the quality of life during those years.

In brief: Foreign material
A tissue (pig or cow) or "bioprosthetic"(synthesized from natural tissue such as pericardium) generally lasts 7-12 years(with some variability) because, unlike your native valve, is foreign to the body.
It is susceptible to certain stresses that your own valve wasn't. They are safe, however, and improve the quality of life during those years.
Dr. Scott Mackinnon
Dr. Scott Mackinnon
Thank
Dr. Robert Binford
Surgery - Thoracic
In brief: It's not alive
The tissue valves we implant are made of treated tissue from either a pig or cow.
They are not living tissue any more. So over time they begin to wear out. On the other hand you original valve is alive and can repair itself to some effect.

In brief: It's not alive
The tissue valves we implant are made of treated tissue from either a pig or cow.
They are not living tissue any more. So over time they begin to wear out. On the other hand you original valve is alive and can repair itself to some effect.
Dr. Robert Binford
Dr. Robert Binford
Thank
Dr. Mario Matos-Cruz
Surgery - Thoracic
In brief: Which type of tissue
If your original lasted 65years you should be older than 40years old.
Need to clarify.

In brief: Which type of tissue
If your original lasted 65years you should be older than 40years old.
Need to clarify.
Dr. Mario Matos-Cruz
Dr. Mario Matos-Cruz
Thank
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