My husband had a quadruple bypass 18 years ago, 2 years after the bypass he had an angioplasty. He has high blood pressure, diabetes, and now experienced another heart attack where 2 stents were inserted into the artery that was grafted 18 years ago. The cardiologist told him that he only has 30 percent of his heart function. He is extremely tired, nauseated, sweats but does not experience any chest pains. Will he survive this last bout and what will his quality of life be.