The failure of sternal electrodes in impedance cardiography to predict changes in stroke volume

Robert P Patterson, L. Wang, G. McVeigh, R. Burns, Jay N Cohn

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A study was conducted on 26 healthy adults comparing the stroke volume (SV) and cardiac output (CO) measured with green dye and impedance cardiography in supine and sitting conditions and during 50-W bicycle exercise. The impedance pickup electrodes were modified from the standard band location and placed at the suprasternal notch and 10 cm lower. The percentage change of SV going from supine to sitting was -27.2 ± 7.4% and -16.9 ± 22% for the dye and impedance values respectively. The percentage change of SV going from sitting to exercise was 20.9 ± 11.9% and 36.7 ± 32.9% for the dye and impedance values, respectively. The percentage change in stroke volume determined by impedance shows poor agreement with dye values and considerably more variation.

Original languageEnglish (US)
Title of host publicationProceedings of the Annual Conference on Engineering in Medicine and Biology
PublisherPubl by IEEE
Pages797-798
Number of pages2
Volume13
Editionpt 2
ISBN (Print)0780302168
StatePublished - Dec 1 1991
EventProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society - Orlando, FL, USA
Duration: Oct 31 1991Nov 3 1991

Other

OtherProceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society
CityOrlando, FL, USA
Period10/31/9111/3/91

Fingerprint

Cardiography
Impedance Cardiography
Electric Impedance
Stroke Volume
Electrodes
Coloring Agents
Dyes
Exercise
Exercise equipment
Pickups
Cardiac Output

Cite this

Patterson, R. P., Wang, L., McVeigh, G., Burns, R., & Cohn, J. N. (1991). The failure of sternal electrodes in impedance cardiography to predict changes in stroke volume. In Proceedings of the Annual Conference on Engineering in Medicine and Biology (pt 2 ed., Vol. 13, pp. 797-798). Publ by IEEE.

The failure of sternal electrodes in impedance cardiography to predict changes in stroke volume. / Patterson, Robert P; Wang, L.; McVeigh, G.; Burns, R.; Cohn, Jay N.

Proceedings of the Annual Conference on Engineering in Medicine and Biology. Vol. 13 pt 2. ed. Publ by IEEE, 1991. p. 797-798.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Patterson, RP, Wang, L, McVeigh, G, Burns, R & Cohn, JN 1991, The failure of sternal electrodes in impedance cardiography to predict changes in stroke volume. in Proceedings of the Annual Conference on Engineering in Medicine and Biology. pt 2 edn, vol. 13, Publ by IEEE, pp. 797-798, Proceedings of the 13th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, Orlando, FL, USA, 10/31/91.
Patterson RP, Wang L, McVeigh G, Burns R, Cohn JN. The failure of sternal electrodes in impedance cardiography to predict changes in stroke volume. In Proceedings of the Annual Conference on Engineering in Medicine and Biology. pt 2 ed. Vol. 13. Publ by IEEE. 1991. p. 797-798
Patterson, Robert P ; Wang, L. ; McVeigh, G. ; Burns, R. ; Cohn, Jay N. / The failure of sternal electrodes in impedance cardiography to predict changes in stroke volume. Proceedings of the Annual Conference on Engineering in Medicine and Biology. Vol. 13 pt 2. ed. Publ by IEEE, 1991. pp. 797-798
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