150
Participants
Start Date
November 30, 2008
Primary Completion Date
July 31, 2009
Study Completion Date
July 31, 2009
Fentanyl Citrate
Combined anesthesia with propofol (2-2.5mg/kg) and fentanyl (5 μg)
Butorphanol Tartrate
Combined anesthesia with propofol (2-2.5 mg/kg) and butorphanol (1mg)
Nanjing Maternal and Child Health Care Hospital, Nanjing
Lead Sponsor
Nanjing Medical University
OTHER