The Effect of Esketamine on Postoperative Cognitive Function in Elderly Patients Undergoing Oral and Maxillofacial Surgery

Abstract

Esketamine is a common anesthetic adjuvant. Previous studies have shown that it may have protective effects on the brain. This study aims to investigate whether esketamine can improve cognitive function recovery in elderly patients (aged 60 years and older) undergoing oral and maxillofacial surgery. Participants will be randomly assigned to receive either esketamine or a placebo (normal saline) during anesthesia. Neither the participants nor the researchers will know which treatment is given. Cognitive function will be assessed using standardized tests before surgery and at 1, 3, 7, and 15 days after surgery. Sleep quality, pain scores, emotional status, and adverse events will also be recorded. Blood samples will be collected to explore potential mechanisms. The study is expected to enroll approximately 98 participants at the Third Affiliated Hospital of Air Force Medical University in Xi'an, China. Participation will last about 16 days from the day before surgery to the final follow-up on day 15 after surgery.

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