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Heart Murmur
When doctors use a stethoscope to listen to the heart beat, they hear a lub-DUB sound made by heart valves opening and closing as blood flows through the heart. The term heart murmur refers to an unusual whooshing sound heard by doctors listening to the heart beat.

Heart murmurs are usually harmless and many children will have them heard by their doctors at some point in their lives. Other heart murmurs are called abnormal and may be associated with defects in the heart that were present at birth.

Mitral Valve Prolapse
This is a condition where one of the heart’s valves doesn’t work properly. The valve flaps are “floppy” and don’t close properly. This sometimes causes blood to flow backward from its normal direction. This backflow of blood may be associated with shortness of breath or chest pain.

The cause of mitral valve prolapse is not known. Most people with the condition are born with it. It tends to run in families and is
associated with connective tissue disorders such as Marfan syndrome.

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