Relation of atrial electromechanical delay to P‐wave dispersion on surface ECG using vector velocity imaging in patients with hypertrophic cardiomyopathy

摘要

Heterogeneity of structural and electrophysiologic properties of atrial myocardium is common characteristic in hypertrophic cardiomyopathy (HCM). We assessed the dispersion of atrial refractoriness on surface ECG using P‐wave dispersion (PWD) and its relation to atrial electromechanical functions using vector velocity imaging (VVI) in HCM population.