Thanks for your question through HCM Echo is nothing but a scan of heart function and structure mild dilatation of left atrium means that chamber of heart due to overload tissue becomes weak in fuction to some extent TIA means transient ischemic attack to brain due to decreases blood supply to brain tissue as there is moderate diffuse atherosclerosis in carotid vertebral system blood supply to brain reduce little extent due to blockage of vessels so you need to take antiplatelet agents along with statins which decreases cholestral accumulation in blood vessels like carotid and vertebral systems you will get improvement surely if you change your life style avoiding smoking ,alcohol,need good physical excercise monitoring lipid prifile ,CBP serum creatinine every month will show the improvement in health