Unequal Atrial Stretch in dogs Increases Dispersion of Refractoriness Conducive to developing Atrial Fibrillation

Atrial Stretch Precipitates Atrial Fibrillation. Introduction: We have shown previously that acute atrial dilation prolonged atrial refractoriness. We hypothesized that this increase in refractoriness might be heterogeneous and could create an electrophysiologic substrate leading to atrial fibrillation. The purpose of the present study was to test that hypothesis.

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