CMC Cardiac Medicine Certification

Answer- B - The incorrect statement about mechanical valves is mechanical valves are good for elderly patients. Mechanical valves require lifelong anticoagulation therapy due to risk of thrombosis. Mechanical valves last longer and are typically used for patients under 65 or patients over 65 that have a long life expectancy. Biologic valves deteriorate at a rate inversely proportional to the patient’s age (wear out faster in younger patients). Thus, biological valves are typically great for elderly patients in whom the expected lifespan is less than the life of the valve (15-20 years). Women that would like to become pregnant should also have biologic valves placed to avoid long-term teratogenic anticoagulants.