208
Participants
Start Date
April 3, 2025
Primary Completion Date
June 23, 2025
Study Completion Date
June 30, 2025
Preemptive Dexmedetomidine injection
The DEX group was continuously pumped at 1.5 μg /(kg·h) for 15 minutes before induction, and after induction continue infusion 15min.
Sodium Chloride 0.9% Inj
The Placebo group was infused with equal amounts of isochronous normal saline.
Xuanwu hospital, Beijing
China International Neuroscience Institution
OTHER