1 doctor weighed in:

Why is the murmur of hocm louder on valsalva maneuver?

1 doctor weighed in
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
Thank
Get help from a real doctor now
Dr. Tonga Nfor
Board Certified, Internal Medicine - Cardiology
12 years in practice
508K people helped
Continue
108,000 doctors available
Read more answers from doctors