180
Participants
Start Date
February 28, 2014
Primary Completion Date
June 30, 2015
Study Completion Date
August 31, 2015
Normal Saline
Normal Saline is intravenously administrated before anesthesia induction
Butorphanol
Butorphanol is intravenously administrated
Flurbiprofen axetil
Flurbiprofen axetil is intravenously administrated
Remifentanil
Remifentanil is intravenously administrated
Sufentanil
Sufentanil is intravenously administrated
Tianjin Medical University General Hospital, Tianjin
Tianjin Medical University General Hospital
OTHER