Photoplethysmographic assessment of hemodynamic variations using pulsatile tissue blood volume

Foo, Jong Y. A., Lim, Chu S. and Wilson, Stephen J. (2009) Photoplethysmographic assessment of hemodynamic variations using pulsatile tissue blood volume. Angiology, 59 6: 745-752. doi:10.1177/0003319708314245


Author Foo, Jong Y. A.
Lim, Chu S.
Wilson, Stephen J.
Title Photoplethysmographic assessment of hemodynamic variations using pulsatile tissue blood volume
Journal name Angiology   Check publisher's open access policy
ISSN 1940-1574
Publication date 2009-12
Sub-type Article (original research)
DOI 10.1177/0003319708314245
Volume 59
Issue 6
Start page 745
End page 752
Total pages 8
Place of publication Thousand Oaks, CA, U. S. A.
Publisher Sage
Language eng
Subject 1103 Clinical Sciences
0903 Biomedical Engineering
0904 Chemical Engineering
Abstract Sympathetic responses to provocative tests have shown to provide an early prognosis of abnormalities in the human autonomic nervous system. Photoplethysmographic signal characteristics have been studied to identify vascular diseases. However, knowledge about the pulse-added arterial volume of the photoplethysmographic waveforms during these clinical investigations is limited. In all, 16 normotensive adults (9 men) were recruited to perform 3 provocative test (2 postural changes and 1 resistive breathing) activities with photoplethysmographic signals being monitored on the upper and lower peripheries using customized devices. In all, 4 parameters derived from the photoplethysmographic waveforms that related to the pulsatile tissue blood volume changes were then assessed. The results obtained showed that amplitude-related parameters during these activities showed significant changes (>9.63%; P < .05). However, comparison of pulse-added arterial volume showed insignificant changes (<5.56%; P > .05) for all test settings. Hence, the findings herein suggest that there is clinical potential in using this aspect of the photoplethysmographic waveform.
Keyword photoplethysmography
Pulse Transit-time
circulatory responses
blood pressure
noninvasive monitoring
Q-Index Code C1
Q-Index Status Provisional Code

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Information Technology and Electrical Engineering Publications
 
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