2024年9月2日 · Mechanical aortic valve replacement (MAVR) is a critical intervention for patients with severe aortic valve disease compromising valvular functionality, including aortic stenosis and regurgitation.

This topic will review the approach to antithrombotic therapy for patients with mechanical heart valves [1,2]. Antithrombotic therapy refers to use of anticoagulants, antiplatelet agents, or both. Related subjects are presented separately, including: (See .)

2024年6月11日 · Aortic valve replacement may be done using open-heart surgery or minimally invasive methods. Transcatheter aortic valve replacement (TAVR) is a type of minimally invasive aortic valve replacement. It also is called transcatheter aortic valve implantation (TAVI).

2020年12月17日 · Mechanical valves: Anticoagulation with vitamin K antagonists (VKAs) is recommended to achieve varying international normalized ratios (INRs) dependent on valve characteristics and patient risk factors (all Class 1).

2024年6月6日 · View illustrations of mechanical and tissue valves. Possible choices include: Manufactured mechanical valve. These valves are made of strong, durable materials. They are the most long-lasting type of replacement valve. Most will last throughout a patient’s life.

2021年6月26日 · Mechanical valves can outlive a normal patient lifespan which is an incredible advantage. However, mechanical valves currently require the ongoing use of blood thinners, or anticoagulants, to prevent clotting on the valvular device. Without the use of anticoagulants, a blood clot can form on the valve which could ultimately cause a stroke.

2021年2月12日 · For an aortic valve replacement, experts usually recommend mechanical valves for people under age 50 and tissue valves for those over age 70. For people between those two ages, neither type has a clear advantage over the other.

Mechanical valves are made of metal or carbon and are designed to work just like your own valves. The bileaflet valve is the most common type of mechanical valve. It’s made up of two carbon leaflets mounted in a ring covered with polyester knit fabric.

Aortic valve replacement is a cardiac surgery procedure whereby a failing aortic valve is replaced with an artificial heart valve. The aortic valve may need to be replaced because of aortic regurgitation (back flow), or if the valve is narrowed by stenosis.

Aortic valve replacement (AVR) treats severe cases of aortic stenosis. The procedure uses mechanical valves or a donor valve. Learn more.