Left Atrial Strain and Strain Rate in Patients With Paroxysmal and Persistent Atrial Fibrillation

Abstract
Background— Atrial fibrillation (AF) is a progressive condition that begins with hemodynamic and/or structural changes in the left atrium (LA) and evolves through paroxysmal and persistent stages. Because of limitations with current noninvasive imaging techniques, the relationship between LA structure and function is not well understood.
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