The Relationship of Left Atrial Volume and Left Atrial Pressure in Patients With Hypertrophic Cardiomyopathy: An Echocardiographic and Cardiac Catheterization Study

Although left atrial size may reflect chronic changes due to diastolic dysfunction in HCM, the relation of increased LAVI to ventricular filling pressures is modest. Nonetheless, a normal LAVI suggests normal ventricular filling pressures in patients with HCM.