Role of infarct scar dimensions, border zone repolarization properties and anisotropy in the origin and maintenance of cardiac reentry

•Scar tissue border zone is a major determinant of the onset of simulated cardiac reentry•Reentrant cycles may develop within a sub-epicardial border zone wedging between unexcitable scars•Reentrant cycles may develop within a homogeneous sub-epicardial border zone covering a scar•Reentrant pathways...

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