Experimental Factor Ontology term EFO_0003896 (left ventricular hypertrophy) is enlargement of the LEFT VENTRICLE of the heart. This increase in ventricular mass is attributed to sustained abnormal pressure or volume loads and is a contributor to cardiovascular morbidity and mortality. Also known as: Hypertrophies, Left Ventricular, Hypertrophy, Left Ventricular, Left Ventricular Hypertrophies, Ventricular Hypertrophies, Left, Ventricular Hypertrophy, Left.