• Jian He, Lei Zhang, Tao Tao, Xianjie Wen, Daguang Chen, Xueqin Zheng, Changhui Luo, Hua Liang, and Hanbing Wang.
• Department of Anesthesiology, The First People's Hospital of Foshan, Foshan City 528000, China.
• J Clin Anesth. 2023 May 1; 85: 111044111044.

ObjectiveTo evaluate the effect of nalbuphine on emergence agitation (EA) in children undergoing adenotonsillectomy.DesignMulticenter, prospective, double-blind, randomized controlled trial.SettingThe First People's Hospital of Foshan and three other participating institutions in China, from April 2020 to December 2021.PatientsEight hundred patients, 3-9 years of age, American Society of Anesthesiologists (ASA) classification I or II, undergoing elective adenotonsillectomy were included.InterventionsNalbuphine (0.1 mg/kg) or saline was administered intravenously.MeasurementsThe incidence of EA; the pediatric anesthesia emergence delirium (PAED) scale; and the faces, legs, activity, cry, and consolability (FLACC) scales. Extubation time, duration of post-anesthesia care unit (PACU) stay, anesthesia nurses' and parents' satisfaction, and other side effects.Main ResultsThe incidence of EA in the nalbuphine group was lower than that in the saline group 30 min after extubation (10.28% vs. 28.39%, P = 0.000). In addition, the FLACC scores in the nalbuphine group were lower than those in the saline group 30 min after extubation (P < 0.05). Furthermore, the proportion of moderate-to-severe pain cases (FLACC scores >3) was significantly lower in the nalbuphine group than in the saline group (33.58% vs. 60.05%, P = 0.000). Adjusting the imbalance of postoperative pain intensity, the risk of EA was still lower in the nalbuphine group at 0 min (OR, 0.39; 95% CI, 0.26-0.60; P = 0.000), (OR, odds ratio; CI, confidence interval), 10 min (OR, 0.39; 95% CI, 0.19-0.79; P = 0.01), and 20 min (OR, 0.27; 95% CI, 0.08-0.99; P = 0.046) than in the saline group. There were no significant differences in extubation time, duration of PACU stay, nausea and vomiting, or respiratory depression between the two groups (P > 0.05).ConclusionNalbuphine reduced the incidence of EA in children after adenotonsillectomy under general anesthesia, which may be involved in both analgesic and non-analgesic pathways.Copyright © 2022. Published by Elsevier Inc.

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