Methods
This study was approved by the Ethics Committee of the Affiliated Hospital of Binzhou Medical University, No. (2021KT-014). This project was registered in the Chinese Clinical Trial Registry on November 6, 2021, with the registration number ChiCTR2100052830.This project was a sequential enrollment study. All pediatric patients were anesthetized and awakened in the Pediatric Endoscopy Center of our hospital. After the evaluation in the anesthesia clinic, the legal guardians of the children voluntarily signed the informed consent. Pediatric patients enrolled in this study aged1-14years, with a BMI of 18-25 kg/m