Recently my father was admitted in hospital and suspected for heart disease and he has undergone angiogram and doctor told that he has 50 to 60% two vessel disease his lcx has 80-90% tubular stenosis and he told that v can manage medically and no surgery is needed my father age 64. Is this is any serious condition need surgery. Kindly clarify me He is currently taking following medicines Angispan Tr Lipikind 40 Flavedon Mr. clopilet 150 Metformin Daonil Atenol amlodipine.