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Non-invasive estimation of left atrial dominant frequency in atrial fibrillation from different electrode sites: Insight from body surface potential mapping

Bojarnejad, Marjan; Blake, James R; Bourke, John; Shepherd, Ewan; Murray, Alan; Langley, Philip

Authors

Marjan Bojarnejad

James R Blake

John Bourke

Ewan Shepherd

Alan Murray

Philip Langley



Abstract

© 2014, CardioFront LLC. All rights reserved. The dominant driving sources of atrial fibrillation are often found in the left atrium, but the expression of left atrial activation on the body surface is poorly understood. Using body surface potential mapping and simultaneous invasive measurements of left atrial activation our aim was to describe the expression of the left atrial dominant fibrillation frequency across the body surface. 20 patients in atrial fibrillation were studied. The spatial distributions of the dominant atrial fibrillation frequency across anterior and posterior sites on the body surface were quantified. Their relationship with invasive left atrial dominant fibrillation frequency was assessed by linear regression analysis, and the coefficient of determination was calculated for each body surface site. The correlation between intracardiac and body surface dominant frequency was significantly higher with posterior compared with anterior sites (coefficient of determination 67±8% vs 48±2%, p

Citation

Bojarnejad, M., Blake, J. R., Bourke, J., Shepherd, E., Murray, A., & Langley, P. (2014). Non-invasive estimation of left atrial dominant frequency in atrial fibrillation from different electrode sites: Insight from body surface potential mapping. Journal of atrial fibrillation, 7(3), 6-10

Journal Article Type Article
Publication Date 2014-10
Deposit Date Mar 30, 2016
Publicly Available Date Mar 30, 2016
Journal Journal of Atrial Fibrillation
Print ISSN 1941-6911
Peer Reviewed Peer Reviewed
Volume 7
Issue 3
Pages 6-10
Keywords Atrial arrhythmia, Atrial fibrillation, Intra-atrial electrograms, Body surface potential mapping, Signal processing
Public URL https://hull-repository.worktribe.com/output/434373
Publisher URL http://www.jafib.com/published.php?type=full&id=1131&is=previous_issue&f=full
Additional Information This is a copy of an open access article published in Journal of atrial fibrillation, v.7 issue 3.
Contract Date Mar 30, 2016

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