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Why is the murmur of hocm louder on valsalva maneuver?
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Dr. John Szawaluk
Internal Medicine - Cardiology
In brief: Anything
That decreases venous return leads to a reduction in volume to the heart.
These changes will effect the intensity of murmurs. With the valsalva there ia a transient/ brief increase in output. The straining portion decreases venous return and will increase the intensity of the murmur.Heart rate will also increase. Standing abruptly will do the same.

In brief: Anything
That decreases venous return leads to a reduction in volume to the heart.
These changes will effect the intensity of murmurs. With the valsalva there ia a transient/ brief increase in output. The straining portion decreases venous return and will increase the intensity of the murmur.Heart rate will also increase. Standing abruptly will do the same.
Dr. John Szawaluk
Dr. John Szawaluk
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