Contrast echocardiography in segmental analysis and intraventricular gradient quantification in hypertrophic cardiomyopathy.

Introduction: Hypertrophic cardiomyopathy (HCM) is a hereditary disorder characterized by ventricular hypertrophy, diastolic dysfunction and hyperdynamic left ventricular systolic function. This excessive contraction is sometimes associated with significant intraventricular pressure gradients. These gradients are dynamic and therefore vary at different times.