What are mechanical valves made of? How do they work?
Mechanical valves are manufactured from a biocompatible metal, plastic or ceramic-like material. The valve itself consists of a ring, with one or two moveable discs inside that open and close to control the flow of blood, much like a natural heart valve. What are the advantages of mechanical valves? What are the disadvantages? Mechanical valves perform well and are very durable. They usually last throughout the patient’s lifetime and do not require replacement. On the other hand, because mechanical valves are made from metal or plastic, patients are required to take anticoagulation medication (blood thinners) throughout their lifetime to prevent the formation of blood clots. These clots could result in strokes or other serious medical problems. Anticoagulation therapy also becomes a lifestyle issue for many patients. They must be regularly tested to ensure that the proper dosage is being administered – if it is too high, bleeding complications can result, especially bleeding into joint
