200
Participants
Start Date
January 1, 2024
Primary Completion Date
July 30, 2024
Study Completion Date
August 30, 2024
Dexmedetomidine
Intravenous infusion of 0.6μg/kg load dose of dexmedetomidine within 10 minutes after intubation, followed by continuous infusion at a rate of 0.4 μg/kg/h until 30 minutes before the end of surgery
physiological saline
physiological saline
Chinese PLA General Hospital, Beijing
Chinese PLA General Hospital
OTHER