Left ventricular hypertrophy is enlargement (hypertrophy) of the muscle tissue that makes up the wall of your heart's main pumping chamber (left ventricle).
Left ventricular hypertrophy develops in response to some factor, such as high blood pressure, that requires the left ventricle to work harder. As the workload increases, the walls of the chamber grow thicker, lose elasticity and eventually may fail to pump with as much force as that of a healthy heart.
Left ventricular hypertrophy is more common in people who have uncontrolled high blood pressure or other heart problems. Treating high blood pressure can help ease your symptoms and may reverse the left ventricular hypertrophy.