Joan Rivers ' ' ` ` died from a predictable complication of medical history , '' he said . It was ` ` during laryngoscopy and ... endoscopy with propofol sedation '' No further comment at this time . '' The initial report did not name the doctor or patient . Rivers , 81 , died a week after an appointment at Yorkville Endoscopy Clinic .
Joan Rivers ' ' ` ` died from a predictable complication of medical history , '' he said . It was ` ` during laryngoscopy and ... endoscopy with propofol sedation '' The initial report did not name the doctor or patient . Rivers , 81 , died a week after an appointment at Yorkville Endoscopy Clinic .