目前国内小儿麻醉前用药多采用肌肉注射给药,而肌注所产生的疼痛刺激、患儿与父母分离所产生的焦虑以及对手术的恐惧,均可导致麻醉诱导不平稳和手术后的行为改变,给患儿的身心健康带来的伤害[1-2]。如何选择合适的麻醉前用药和适当的给药途径来避免或减少上述因素对小儿身心健 At present, most pediatric anesthesia medication is administered by intramuscular injection. The pain stimulation caused by intramuscular injection, the anxiety caused by the separation of the children from their parents and the fear of surgery can lead to unstable anesthesia induction and behavioral changes after the operation , To children’s physical and mental health damage [1-2]. How to choose the appropriate pre-anesthetic drugs and appropriate routes of administration to avoid or reduce the above factors on children’s physical and mental health