ABSTRACT
Secondary myocardial impairment (e.g., as a result of hypertension) cannot be reliably differentiated from the primary cardiomyopathies on echocardiography.
• Some normal ranges in use are too narrow and may result in overdiagnosis of LV dilatation, especially in large subjects. Diastolic diameters as large as 5.9 cm may be normal (see pages 129-131).
