1,000
Participants
Start Date
July 31, 2008
Primary Completion Date
September 30, 2009
Study Completion Date
September 30, 2009
Hydromorphone
Intravenous administration of hydromorphone 1mg at the patient's request if they felt uterine contraction pain
Remifentanil
Remifentanil intravenous PCA: 0.2μg/kg, lockout time interval 2 minutes, continuous infusion rate 0.2-0.8μg/kg/min.
Nanjing Maternal and Child Health Care Hospital, Nanjing
Lead Sponsor
HRSA/Maternal and Child Health Bureau
FED
Nanjing Medical University
OTHER