Correlation of vectorcardiographic findings with patterns of left ventricular hypertrophy in hypertrophic cardiomyopathy

43 patients with hypertrophic cardiomyopathy (HCM), mean age 53±10 years, 36 male, 7 female. Classified into 4 types based on hypertrophy site: septal (n=16), anterior (n=6), posterolateral (n=7), or apical (n=14).

Vectorcardiography (VCG) to assess QRS and T loop characteristics

Correlation of vectorcardiographic findings (QRS loop direction and T loop slenderness) with the distribution and degree of left ventricular hypertrophy determined by echocardiogram and MRIsurrogate