The effect of multi-modal virtual reality intervention on the incidence of delirium in patients with non-cardiac surgery

INTERVENTION: Multimodal virtual reality group:Wearing virtual reality glasses and aromatherapy for 20 minutes;Biophilic virtual reality group:Wearing biophilic virtual reality glasses for 20 minutes;Aromatherapy group:Conduct aromatherapy for 20 minutes;Blank control group:No interventions; CONDITION: Postoperative delirium PRIMARY OUTCOME: Incidence of delirium 7 days; SECONDARY OUTCOME: Duration of postoperative delirium;Severity of postoperative delirium;Post‐intervention anxiety scores;Pre‐intervention anxiety levels;Post‐operative pain levels;Pre‐operative pain levels;Pre‐intervention heart rate;Post‐intervention heart rate;Pre‐intervention blood pressure;Post‐intervention blood pressure;C‐reactive protein, CRP;IL‐6; INCLUSION CRITERIA: a. Patients undergoing non‐cardiac surgery in our hospital (hepatobiliary, orthopedic, gastrointestinal, urological, etc.); b. Age >= 60 years; c.Expected duration of surgery = 2 hours; d. Expected length of stay after surgery >= 3 days