The biological tissue valve needs to be replaced frequently is one of the disadvantage.
It is possible that you will need to have your heart valve replaced if it is not possible to repair the valve and a catheter-based operation is not an option. Your doctor will remove your existing heart valve and replace it with either a mechanical valve or a valve manufactured from cow, pig, or human heart tissue during a heart valve replacement procedure (biological tissue valve) and the procedure is called biological tissue valve replacement.
Biological valves, which are typically manufactured from the tissue of pigs or cows, do not increase the risk of bleeding or clotting. However, they wear out within about 10 to 15 years, which makes it likely that a second surgery will be required.
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