Validation of a simple method of assessing cardiac preejection period: a potential index of sympathetic nervous system activity

Perceptual and Motor Skills
K T Larkin, A L Kasprowicz

Abstract

Traditional noninvasive assessment of sympathetic nervous system (SNS) activity in cardiovascular functioning has been confounded by concurrent parasympathetic influences. Analyses of specific intervals of the cardiac cycle have indicated that the systolic preejection period (PEP) may serve as a reliable index of SNS activity independent of parasympathetic inhibition. In the present study, PEP values derived from a technique employing peripheral pulse wave tracings were compared to values obtained from simultaneous impedance cardiograph recordings. Recordings were made on 15 male subjects who were instructed to rest quietly sitting in an upright position. Results indicated that values obtained from both methods were highly correlated and not significantly different when measurement adjustments on total systole were taken into account. These findings support the validity of the fingertip peripheral-pulse method in obtaining measures of systolic time intervals under resting conditions.

References

Nov 1, 1979·Psychophysiology·D B Newlin, R W Levenson
Jan 1, 1979·Journal of Neural Transmission·R LangW Kaufmann
Mar 1, 1978·British Heart Journal·V BalasubramanianR S Hoon
Jan 1, 1976·Acta Anaesthesiologica Scandinavica·D W Hill, A J Merrifield
Apr 1, 1972·Journal of Molecular and Cellular Cardiology·M L EntmanA Schwartz
Apr 1, 1969·The American Journal of Cardiology·A M WeisslerC D Schoenfeld

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Citations

Sep 25, 2017·Physiological Research·J KrohovaM Javorka
Apr 26, 2019·Psychophysiology·Christopher J BrushBrandon L Alderman

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