Mild concentric left ventricular hypertrophy is the mild enlargement of the muscles of the sinistral cardiac ventricle, which includes an augmented cavity size and thickened walls, according to Mayo Clinic. It is often the result of chronic high blood pressure or blood flow congestion from the left side of the heart.
Left ventricular hypertrophy is generally associated with accretion in the left pumping chamber of the heart. In the presence of chronic hypertension, the left ventricle becomes overworked, which results in the thickening of the muscle walls and eventual increase in chamber size. Hereditary factors may also play a role in left ventricular hypertrophy. An estimated left ventricular mass of 7.1 to 8 ounces in men and 5.3 to 6 ounces in women is considered mildly abnormal.