My husband has had atherosclerotic heart disease and PAD for 28 years. He has lost a leg, and had triple bi pass, need quad but not parts, two blocked again. He has great pain when walking very short distance in both legs. Has had two strokes. He looks ashen. Cardiologist wants us to see 3 different dr. to treat, sleep apnea, legs, and dizziness. Kidney function 50% No one will give me a straight answer on life expectancy, what to expect. No one dr. treats whole disease. Help