<prompt> Most common cause of LVH is -MSARHypeensionMitral valve prolapsed  <response>: Left ventricular hyperophy is enlargement and thickening hyperophy of the walls of your heas main pumping chamber left ventricle. Left ventricular hyperophy can develop in response to some factor -- such as high blood pressure or a hea condition -- that causes the left ventricle to work harder Ref Davidson 23rd edition pg 472 