Estimate of electromotive surface dimension during ventricular fibrillation

Francis X. Witkowski, Patricia A. Penkoske, Katherine M. Kavanagh

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

2 Scopus citations

Abstract

The accurate identification of local activation from extracellular recording electrodes attached to the beating heart is critical for the development of a mechanistic understanding of serious cardiac rhythm disturbances in both experimental animals and man. One of the most complex of these rhythm disturbances is ventricular fibrillation, a common cause of sudden cardiac death in man. When using bipolar extracellular recording electrodes to detect local activation, the spatial extent of the upstroke of the action potentials that generate the extracellular waveform determines the optimal interelectrode distances for the bipolar electrodes. This spatial length has been well characterized for normal cardiac conduction at around 1.0 mm on the epicardial surface. We found that for many of the activations occurring during early ventricular fibrillation this length is similarly around 1.0 mm.

Original languageEnglish
Title of host publicationProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
EditorsJean Louis Coatrieux, Jean Pierre Morucci, Swamy Laxminarayan, Robert Plonsey
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages631-632
Number of pages2
ISBN (Electronic)0780307852
DOIs
StatePublished - Jan 1 1992
Externally publishedYes
Event14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992 - Paris, France
Duration: Oct 29 1992Nov 1 1992

Publication series

NameProceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS
Volume2
ISSN (Print)1557-170X

Conference

Conference14th Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992
CountryFrance
CityParis
Period10/29/9211/1/92

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  • Cite this

    Witkowski, F. X., Penkoske, P. A., & Kavanagh, K. M. (1992). Estimate of electromotive surface dimension during ventricular fibrillation. In J. L. Coatrieux, J. P. Morucci, S. Laxminarayan, & R. Plonsey (Eds.), Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS 1992 (pp. 631-632). [5761144] (Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society, EMBS; Vol. 2). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IEMBS.1992.5761144