Electroencephalogram-guided anesthesia and postoperative anxiety and depression in elderly gastric cancer patients with sleep disorders

For elderly gastric cancer patients with preoperative sleep disorders, individualized anesthesia guided by EEG monitoring significantly reduces postoperative anxiety and depression symptoms, lowers postoperative delirium risk, shortens hospital stay, and improves postoperative quality of life. The stability of anesthesia depth is closely associated with postoperative mental health outcomes, providing new clinical evidence and individualized strategies for perioperative management of high-risk elderly patients.