120
Participants
Start Date
February 7, 2017
Primary Completion Date
September 30, 2017
Study Completion Date
October 5, 2017
Normal Saline
Drug: Normal saline control group receive NS after delivery. Drug: butorphanol tartrate PCA: butorphanol tartrate after cesarean section.
Dexmedetomidine 0.03ug/kg/h
Drug: Dexmedetomidine This group receive Dex 0.5ug/kg after delivery. Drug: butorphanol tartrate and Dexmedetomidine. PCA: butorphanol tartrate with 0.03ug/kg/h Dexmedetomidine after cesarean section.
Dexmedetomidine 0.05ug/kg/h
Drug: Dexmedetomidine This group receive Dex 0.5ug/kg after delivery. Drug: butorphanol tartrate and Dexmedetomidine. PCA: butorphanol tartrate with 0.05ug/kg/h Dexmedetomidine after cesarean section.
Dexmedetomidine 0.08ug/kg/h
Drug: Dexmedetomidine This group receive Dex 0.5ug/kg after delivery. Drug: butorphanol tartrate and Dexmedetomidine. PCA: butorphanol tartrate with 0.08ug/kg/h Dexmedetomidine after cesarean section.
The First Affiliated Hospital with Nanjing Medical University, Nanjing
The First Affiliated Hospital with Nanjing Medical University
OTHER