<s>[INST] My husband cardioligist said that he has Advanced Coranary Heart Disease with unstable angina. He has had 3 stents in last 8 months. He is diabetic type one. He has worked the same job for the last 20 years and we are so surprised by what the doctor said.  His left artery is so small there is nothing else they can do, said it looked like a string a pearls and bipass was not an option. Does this make him unable to go back to work in a factory? [/INST] Hello, I have gone through your query. Thanks for using Chat Doctor. If your husband has weak heart i.e. Low EF then he needs to restrict his activity. If his heart is not weak and has blocks in small left artery he can work with optimum medications prescribed by your cardiologist. If stent and Bypass are not possible then there is another therapy called EEC which can be offered to him. Please discuss with your treating cardiologist, he will guide you further best wishes Chat Doctor.  </s>