MILWAUKEE – A medical team at Aurora St. Luke’s has implanted one of the first new medical devices for the heart. Dr. Mohammad Mortada, an electrophysiologist at Aurora St. Luke’s, has been working with his patient David Haupt for years. He said Haupt had an irregular heartbeat and has lived with A-fib for years. This past November, Haupt’s heart slowed down and was affecting his everyday life.