Effects of Esketamine on Postoperative Cognitive Function in Elderly Patients Undergoing Pulmonary Lobectomy: A Randomised, Single-Blind Controlled Clinical Trial
Actas Españolas de Psiquiatría December 17, 2025 Xueping Li, Haoping Mao, Jiao Luo et al. 1 citation
In elderly patients (aged 65-75) undergoing pulmonary lobectomy with incision, intraoperative esketamine (0.3 mg/kg/h) was associated with a lower incidence of postoperative cognitive dysfunction on days 1 and 3 after surgery compared to remifentanil. The esketamine group also showed higher serum Aβ42/40 levels and lower tau levels on day 1 postoperatively, along with more stable heart rate, mean arterial pressure, and lower pain scores at the end of surgery. No significant difference in postoperative delirium or adverse events was observed between groups. The findings suggest esketamine may reduce postoperative cognitive decline without increasing safety risks.