Simulation of one-dimensional reentry involving a zone of ischemic myocardium

A uniform and nonhomogeneous cable was used as a ring model to simulate one-dimensional reentry involving a segment of ischemic myocardium. Regular reentry was obtained when the ring was long enough. The presence of an ischemic segment (about 10% of the pathway length) triggers a wave of secondary r...

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Bibliographic Details
Main Authors: Gagnon, D., Roberge, F.A.
Format: Conference Proceeding
Language:English
Subjects:
Fluctuations
Myocardium
Online Access:Request full text
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Summary:A uniform and nonhomogeneous cable was used as a ring model to simulate one-dimensional reentry involving a segment of ischemic myocardium. Regular reentry was obtained when the ring was long enough. The presence of an ischemic segment (about 10% of the pathway length) triggers a wave of secondary repolarization during regular reentry, leading to cyclic fluctuations in temporal and spatial action potential characteristics. In comparison with reentry on a uniform and homogeneous ring, the major effect of the ischemic segment is to shorten the minimum pathway length required for regular reentry.< >
DOI:10.1109/IEMBS.1994.412163