Characterization of atrial histology in a patient with hypertrophic cardiomyopathy: Possible evidence of a primary atrial myopathy

Abstract

Hypertrophic cardiomyopathy (HCM) is a heterogeneous genetic myocardial disorder characterized by primary left ventricular hypertrophy. HCM is the most common inherited cardiovascular disorder, affecting about 1 in 500 in the general population, and is a leading cause of sudden cardiac death in young people.1 In addition to ventricular arrhythmias, HCM is associated with a high incidence of atrial fibrillation (AF).2