Who is Being Referred for Heart Surgery?

81 year old with aortic valve stenosis, moderate mitral regurgitation and atrial fibrillation,
Type I diabetic (since age 14) in late 50s with severe coronary disease for CABG.
53 year female with strong FH of coronary disease and CCS III angina for CABG
74 year old with intermittent claudication and class III angina,for CABG.