Abstract
Dexmedetomidine (DEX ) is an α2 adrenalin-receptor agonist with potent sedation, analgesia, anti-anxiety and anti-sympathetic effect. Moreover, DEX exert no inhibition of respiratory function with high safety and has considerable clinical application prospect. Children often experience emergency agitation (EA) and other uncomfortable symptom which is associated with special physical and mental state. Thus, an ideal pediatric anesthetic premedication is getting a lot of attention. DEX is superior to other premedication in sedation with high safety. Compared with others, DEX by nasal spray is an ideal drug delivery method to reduce the side effects and facilitate the implementation of the drug. The relevant research progress of the effective dose, efficacy and safety will be reviewed. Key words: Dexmedetomidine; Administration, intranasal; Anesthesia; Child; Review
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