1,100
Participants
Start Date
April 9, 2014
Primary Completion Date
March 1, 2017
Study Completion Date
March 31, 2018
dexmedetomidine
dexmedetomidine with the dose of 0.4 ug/kg/h is continuously infused right after anesthesia induction and lasts for 12 hrs.
placebo
The vehicle of dexmedetomidine, normal saline is continuously infused right after anesthesia induction and lasts for 12 hrs with the same rate of the treatment arm.
Xijing Hospital, Xi'an
Xijing Hospital
OTHER