<prompt> Left ventricular hyperophy is caused by all except-MSMRASAR  <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. The most common cause of LVH is high blood pressure hypeension. Other causes include athletic hyperophy a condition related to exercise, valve disease, hyperophic cardiomyopathy HOCM, and congenital hea disease. Ref Davidson 23rd edition pg 472 