- anatomical reentry
- reentry in which the block to conduction is an anatomical obstacle; it is usually described by the ring model.
Medical dictionary. 2011.
Medical dictionary. 2011.
anisotropic reentry — reentry that is functional in not occurring around an anatomical obstacle but whose functional properties are conferred by the inherent structural anisotropy of the cardiac muscle fibers; thus it has qualities of both functional and anatomical… … Medical dictionary
reentry — Return of the same impulse into a zone of heart muscle that it has recently activated, sufficiently delayed that the zone is no longer refractory, as seen in most ectopic beats, reciprocal rhythms, and most tachycardias. * * * re·en·try ( )rē en… … Medical dictionary
ring model — in cardiology, a model describing the mechanism of anatomical reentry, based on a circuit that is formed around an impenetrable barrier to propagation and contains a locus of slow conduction. The locus blocks the initial normal impulse but is… … Medical dictionary
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leading circle model — in cardiology, a multidimensional model of reentry that describes the cycle of alternating tissue activation and refractoriness in terms of a functional, rather than anatomical, intertissue interface acting as a barrier around which the… … Medical dictionary