By comparing the application effects of three drugs in pediatric preoperative sedation, this study explores the optimal medication regimen, aiming to provide safer, more effective, and more personalized medication options for pediatric preoperative sedation. Additionally, this research will also focus on the impact of these three drugs on postoperative agitation in children, offering valuable references for the overall management of pediatric surgical anesthesia.
Children aged 2 to 5 years old
the American Society of Anesthesiologists (ASA) physical status of Class I
scheduled for adenotonsillectomy under general anesthesia, will be included.
Abnormal lung function and respiratory system function
airway obstruction or deformity, history of mental illness
electrocardiogram indicating bradycardia
history of cardiac disease