Dynamics of conduction blocks in a model of paced cardiac tissue
- 31 May 2005
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review E
- Vol. 71 (5) , 051911
- https://doi.org/10.1103/physreve.71.051911
Abstract
We study numerically the dynamics of conduction blocks using a detailed electrophysiological model. We find that this dynamics depends critically on the size of the paced region. Small pacing regions lead to stationary conduction blocks while larger pacing regions can lead to conduction blocks that travel periodically towards the pacing region. We show that this size-dependence dynamics can lead to a novel arrhythmogenic mechanism. Furthermore, we show that the essential phenomena can be captured in a much simpler coupled-map model.Comment: 8 pages 6 figureKeywords
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