Rheumatic fever is caused by certain strains of streptococcal bacteria. A strep throat infection that isn't properly treated can trigger rheumatic fever. Rheumatic fever can damage heart muscle and heart valves. Not all people who have rheumatic fever develop rheumatic heart disease.
Most people know that cardiovascular disease can run in families -- that if
you have a family history of heart disease, you may be at greater risk for
heart attack, stroke, and other heart problems. But how much does family
history affect your heart health? What parts of the family tree are most
important? And what can you do about it?
This infection causes swelling and muscle damage to the heart. It can also damage the heart valves in a way that keeps the blood from moving through the heart normally. The infection can cause heart valve leaflets to stick together, which narrows the valve opening. Also, the infection can scar the valves. This keeps the valves from closing tightly, so blood leaks backward in the heart.
Rheumatic fever is rare in Canada, the United
States, and western Europe. But it was fairly common until the 1950s.
Widespread use of antibiotics to treat strep throat has greatly lowered the number of new cases of rheumatic fever.
Today, most rheumatic fever
cases occur in developing countries, particularly Africa and southeast
Some people may develop a heart valve disease after having
rheumatic fever as a child. It might take a few years to 20 years or more
after a case of rheumatic fever for a valve problem to develop.
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WebMD Medical Reference from Healthwise
March 12, 2014
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