In some models of mechanical valves, the disc is divided into two parts, which open and close as a door.

Most mechanical valves last for at least 20 to 30 years.

There are two main differences between mechanical and tissue valves.

But the risk of blood clotting is higher with a mechanical valve.

If you are 60 or younger, a mechanical valve may be your best choice.

A mechanical valve may be your best choice if you are already taking blood thinners for another health problem.

You are less likely to replace a mechanical valve in your lifetime.

A mechanical valve will last 20 to 30 years.

The risk of blood clots is higher with a mechanical valve.

Even mechanical valves, which last the longest, can wear out after 20 to 30 years.