The Influence of Noise on Some Circulatory Functions

Abstract

AbstractUsing cardiac catheterization we have investigated oxygen uptake, arterio-venous oxygen difference, cardiac output, cardiac rate, cardiac stroke volume and the pressure in the pulmonary artery in ten patients before starting a continuous "white noise" of 90 decibels intensity, and after 29 minutes of noise. There was no statistically significant difference in the values of the parameters mentioned above, before and during the period of noise exposure.