Comparison of the effects of perioperative intravenous infusions of esmolol and lidocaine on the quality of postoperative recovery in patients undergoing functional endoscopic sinus surgery: a randomized, double-blind, noninferiority study.

Background: Perioperative intravenous lidocaine infusion can improve the quality of recovery (QoR) in patients undergoing functional endoscopic sinus surgery (FESS), but the effect of esmolol on recovery has been rarely studied. The aim of this study to compare the effects of esmolol and lidocaine on the QoR in patients with FESS.

Methods: A total of 60 patients were randomly divided into Group E: intravenous esmolol (0.5 mg/kg for 1 min, followed by 3.0 mg/kg/h); Group L: intravenous lidocaine (2.0 mg/ kg for 10 min, followed by 2 mg/kg/h). The quality of recovery-15 (QoR-15) score was compared. Other parameters compared were the numeric rating pain scale (NRS), haemodynamic data, Surgical field conditions, intraoperative drug dosages, number of cases of remedial analgesia, time to awakening and incidence of postoperative sore throat (POST) as well as postoperative nausea and vomiting (PONV).

Results: The mean difference in the QoR-15 score between Group E and Group L on postoperative day 1 (POD1) was - 1.37 (95% CI - 2.75 to 0.01; P < 0.001 for noninferiority), indicating the noninferiority of esmolol. Haemodynamic changes and intraoperative nitroglycerine dosages were significantly lower in Group E than in Group L (P < 0.05). The scores of surgical field quality (SSFQ) was higher in Group E than in Group L (P < 0.05).

Conclusion: Intravenous infusion of esmolol is not inferior to lidocaine in the quality of postoperative recovery in patients with FESS, and is more advantageous in terms of the quality of the surgical field, attenuation of intraoperative haemodynamic fluctuations, and postoperative awakening.