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Heart murmur. What is it and what causes it?

April 26, 2017causes heart murmur

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Heart murmur. What is it and what causes it?

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Blood flow in the heart is supposed to be streamlined, like flow down a straight-sided river. If the valves become damaged, flow can be turbulent (either through the valve in the usual way, or backwards if the valve is leaky). Turbulence is audible, and listened for with the stethoscope; turbulence in heart blood flow is called a murmur.