CARDIOLOGY
PROSTHETIC HEART VALVES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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children and young adults
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patients with a large valve annulus
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patients with mild AR
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all of the above
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Detailed explanation-1: -Currently, the American College of Cardiology and the American Heart Association recommend mechanical valves for people under age 50 and biologic (tissue) valves for those over 70. For people like you who fall between those ages, neither type has an absolutely clear advantage over the other.
Detailed explanation-2: -Approximately 90 000 valve substitutes are now implanted in the United States and 280 000 worldwide each year; approximately half are mechanical valves and half are bioprosthetic valves.
Detailed explanation-3: -Aortic valve replacement options include mechanical valves, Ross procedure, homografts and bioprosthetic valves. The Ross procedure is considered by many surgeons the ideal replacement option in children.
Detailed explanation-4: -Mechanical heart valves would be expected to last > 20-30 years whereas bioprosthetic heart valves may only last 10-15 years before degenerating. This means that patients with mechanical heart valves are less likely to need a reoperation or repeat valve procedure. What Are The Disadvantages of Mechanical Heart Valves?