The Journal of Practical Medicine ›› 2025, Vol. 41 ›› Issue (19): 3089-3095.doi: 10.3969/j.issn.1006-5725.2025.19.020

• Drugs and Clinic Practice • Previous Articles    

Comparison of the effects of remimazolam and propofol anesthesia on postoperative delirium in elderly patients with lung cancer undergoing thoracoscopic surgery

Xi CHEN1,2,Beibei YU1,Yuge LIU1,Wei ZHAO1,Ming. YAN1,2()   

  1. *.Department of Anesthesiology,Affiliated Hospital of Xuzhou Medical University,Xuzhou 221002,Jiangsu,China
    *.Jiangsu Provincial Key Laboratory of Anesthesiology,Xuzhou Medical University,Xuzhou 221000,Jiangsu,China
  • Received:2025-06-04 Online:2025-10-10 Published:2025-10-10
  • Contact: Ming. YAN E-mail:yjy3001@163.com

Abstract:

Objective To evaluate the effect of remimazolam on the incidence of postoperative delirium (POD) in elderly lung cancer patients undergoing thoracoscopic surgery. Methods A total of 114 elderly patients who underwent unilateral thoracoscopic lung surgery at the Affiliated Hospital of Xuzhou Medical University from October 2024 to April 2025 were recruited in this trial. Patients were randomly assigned to remimazolam group (group R) and propofol group (group P). Anesthesia induction and maintenance were performed with remimazolam and propofol, respectively. In R group, 0.5 mg of flumazenil was intravenously injected at the end of the surgery for specific antagonism. The incidence of delirium and Quality of Recovery-15 (QoR-15) scores on the first and third postoperative days were compared between the two groups. Intraoperative hemodynamic parameters, total opioid dosage, fluid balance, tracheal tube extubation time after surgery, and the incidence of adverse reactions were recorded. Results There were no statistically significant differences between the groups in the incidence of POD or in QoR-15 scores (P > 0.05). Compared with group P, patients in group R had a shorter extubation time (P < 0.05), more stable hemodynamics, lower incidences of intra-operative hypotension and bradycardia, and reduced requirement for vasoactive drugs (P < 0.05). The consumption of rescue analgesics in the post-anesthesia care unit (PACU) was also lower in group R (P < 0.05). No significant differences were observed between the groups in the amounts of sufentanil and remifentanil administered, fluid balance, bispectral index (BIS) values, or the incidence of nausea and vomiting (P > 0.05). Conclusion In elderly patients undergoing elective thoracoscopic surgery, remimazolam-based induction and maintenance of anesthesia did not significantly alter the incidence of POD or compromise postoperative recovery quality compared with propofol. However, the remimazolam group required fewer vasoactive agents and exhibited a shorter tracheal extubation time.

Key words: remimazolam, propofol, thoracoscopic surgery, postoperative delirium

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