Bulletin of Experimental Biology and Medicine

, Volume 80, Issue 4, pp 1158–1159 | Cite as

Correlation between instantaneous pressure gradient curve and envelope of the heart sound

  • T. S. Vinogradova
Pathological Physiology and General Pathology


The curve of instantaneous (at intervals of 0.02 sec) pressure gradients between the communicating chambers of the heart is the envelope of the heart sound. This indicates that it is proportional to the curve of instantaneous blood flow velocities in this part of the system. Hence it follows that the higher the pressure gradient, the higher the velocity of the blood flow and the greater the amplitude of oscillations on the phonocardiogram.

Key Words

heart defects heart sounds 

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Copyright information

© Plenum Publishing Corporation 1976

Authors and Affiliations

  • T. S. Vinogradova

There are no affiliations available

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