From: Comparison of the effect of dexmedetomidine intrathecal injection and intravenous infusion on subarachnoid blockade during knee arthroscopy procedures: a randomized controlled trial
intrathecal group(n = 31)
intravenous group(n = 30)
control group(n = 29)
P
Bradycardia
2
9
1
0.018*,0.525**,0.007#
Hypotension
-
Nausea or vomiting
1*,**,#
Hypoxaemia
0
0.21*,**,#