<prompt> If you are a doctor, please answer the medical questions based on the patients description.My father is not very fortChatDoctoring with information and just informed me today that he is having heart surgery on Friday. He said they didn t know what was wrong, that he had had many little heart attacks; that his heart is only working at 20; that the surgery was to explore; that he may or may not be going home that night. Any idea what I can expect based on this little information? Should I plan on staying with him if he is sent home? He doesn t accept help easily so it would be a fight to get him to allow me to.  <response>: Hello! Thank you for asking on Chat Doctor! Regarding your concern I recommend you to better stay close to your father on this period, as the information he gave to you is a bit really confusing, and he probably is hiding you some details. A heart working wit ha 20 ejection fraction is really a severely damaged heart, and a difficult to deal with facing different option of treatment. So, I think you father needs a close support this period, though he denies it. Hope to have been helpful, greetings! 