I was off work most of yesterday hanging around St. Vincent Healthcare while my wife had her gall bladder removed. It certainly has become an efficient procedure. She was in at 6 a.m., home by 4 p.m. She might have been home by noon if her blood pressure hadn't lagged.
Within a few years, I suspect, hospitals will just rent you the use of the operating room and hand you a page of instructions, then you can take internal organs out yourself. Caution: Wash hands before attempting surgery.