Physiological Left Atrial Staging and the Risk of New-Onset Atrial Fibrillation in Hypertrophic Cardiomyopathy.
BACKGROUND Atrial fibrillation (AF) is pervasive and an independent driver of stroke and death in hypertrophic cardiomyopathy (HCM). Despite guideline recommendations for AF surveillance, effective risk stratification remains elusive, and the hemodynamic and functional states of the left atrium (LA) preceding AF onset...