150
Participants
Start Date
January 5, 2018
Primary Completion Date
December 30, 2020
Study Completion Date
December 30, 2020
Intravenous dexmedetomidine
drug is intravenously infused to patients
nasal dexmedetomidine
drug is nasally given to patients
intravenous saline
saline is given to patients intravenously
nasal saline
normal saline is given to patients nasally
Xijing Hospital, Xi'an
Zhihong LU
OTHER