MRCP UK EXAMINATIONS

CARDIOLOGY

PROSTHETIC HEART VALVES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Most mechanical valves have a physiologic amount of stenosis and/or regurgitation
A
true
B
false
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Stenosis is when the valve opening becomes narrow and restricts blood flow. Prolapse is when a valve slips out of place or the valve flaps (leaflets) do not close properly. Regurgitation is when blood leaks backward through a valve, sometimes due to prolapse.

Detailed explanation-2: -Mitral valve regurgitation, also known as mitral valve insufficiency or mitral valve incompetence, is the most common form of heart valve disease. An estimated 4 million people in the U.S. have significant mitral valve regurgitation. About one in 10 people age 75 and older have mitral valve regurgitation.

Detailed explanation-3: -Bi-leaflet heart valves: These are the most commonly used mechanical valve prostheses. This valve consists of two semicircular leaflets. They are considered the least thrombogenic of mechanical valves and are characterized by washing regurgitant blood jets.

Detailed explanation-4: -Congenital heart valve disease. Narrowing of the aortic valve (aortic stenosis). Inflammation of the lining of the heart’s chambers and valves (endocarditis). Rheumatic fever. Other diseases. Tear or injury of the body’s main artery (aorta). 12-Aug-2021

There is 1 question to complete.