Polymeerihartsien

Polymeerihartsien, also known as polymer heart valves, are artificial heart valves made from synthetic materials, typically polymers. These valves are designed to mimic the function of natural heart valves, allowing blood to flow smoothly through the heart. The most common polymers used in their construction are pyrolytic carbon, polyethylene, and polypropylene. These materials are chosen for their durability, biocompatibility, and resistance to blood clotting.

Polymer heart valves are often used in patients who are not suitable candidates for traditional biological valves, such as those with certain blood types or those who have undergone previous heart surgeries. They are also used in children, as they have a longer lifespan and are less likely to be rejected by the body.

There are two main types of polymer heart valves: tilting disc and bileaflet. Tilting disc valves have a single disc that tilts to allow blood flow, while bileaflet valves have two flexible leaflets that open and close to regulate blood flow.

Polymer heart valves have several advantages over biological valves. They are less likely to cause blood clotting and are less prone to infection. However, they may not last as long as biological valves and may require replacement more frequently.

In conclusion, polymeerihartsien are a type of artificial heart valve made from synthetic materials. They are used in patients who are not suitable candidates for biological valves and have several advantages over them. However, they may require replacement more frequently than biological valves.