Post-Perfusion or "Pump Head" Syndrome and mental decline after open heart "on-pump" surgery. My 82-year old husband will soon be having open heart surgery, with an aortic valve replacement, and two bypasses. He has had two TIA's in the past. The alternative of no surgery is dismal, and his symptoms are worsening quickly. So far, no congestive heart failure. We've read about slow re-warming after surgery, and also the "cell saver", but don't know how to broach this with a major heart research hospital, and surely don't want to insult any surgeon by questioning their technique. I'd appreciate any knowledge, experience, or opinions, as candid as possible. My husband would rather deal with brutal reality than pipe dreams, and has accepted that surgery is required. He has been rejected for the minimally invasive TAVR, because he is otherwise too healthy.