There are two types of heart valve disease--heart disease resulting
from narrowed heart valves, and heart disease resulting from leaky heart
valves. Each of them stems from several different causes, ranging from
birth defects, to bacterial infection, to aging.
Congential Heart Valve Disease
Congenital heart valve is the most common, and can result in
inflexible or narrowed, or floppy, valves, or irregular valve flaps.
Congenital heart valve disease is often diagnosed within a few days of a
baby's birth, but if the defect is minor, may not be discovered until
much later. Heart valve disease can be very hard to diagnose because
some forms of it do not produce symptoms.
Some people, however,
acquire heart valve disease because of complications from another
disease such as heart muscle disease, coronary artery disease and heart
attack. A child who has suffered from a rheumatic heart disease because
of a simple strep throat will likely to have a valvular disease when he
or she reaches adulthood.
Heart valve disease, however, can also
develop as a complication from some other illness; children who have had
rheumatic fever following an untreated case of strep throat have a
greater than fifty percent chance of developing scarring on their heart
valves. A heart with scarred valves has to work harder than one with
smooth ones, and as the years mount, the extra strain on the heart can
lead to rheumatic heart disease.
Endiocarditis
Another form of heart valve disease which can result from infection
is endiocarditis. Endiocarditis develops when bacteria enters the
bloodstream during surgery or dental procedures, causing inflammation of
the heart and scarring both its valves and leaflets. In the case of
endiocarditis, the scarred leaflets will allow blood entering the heart
to back up, or "regurgitate," diminishing the blood volume within the
heart and the amount of blood and oxygen which reaches the body's other
organs.
The elderly are susceptible to heart valve disease resulting from calcification, or calcium deposit buildup, along the valves.
Testing For Heart Valve Disease
Echocardiograms and MRIs are the tests best suited to diagnose heart
valve disease. Either one will give the cardiologist a good look at
abnormalities both in the main chambers of the heart and all its smaller
structures including the valves.
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