Postoperative delirium (POD) increases the risk of postoperative dementia and mortality. Cognitive decline is common in patients with diabetes mellitus. As an independent risk factor for POD, diabetes significantly increases postoperative dementia and mortality. Our team found that acupuncture can reduce the incidence of POD in elderly patients, increase regional cerebral oxygen saturation (rSO2), and increase cerebral blood flow perfusion in diabetic patients. In this study, a prospective randomized controlled study with placebo acupuncture will be conducted. Diabetic patients undergoing elective surgery will be divided into acupuncture group, placebo acupuncture group and control group. Acupuncture will be used as the intervention method, and the incidence of POD will be the main therapeutic effect evaluation index to explore the efficacy of acupuncture in the prevention and treatment of POD in diabetic patients undergoing surgery.
To evaluate the effectiveness and safety of acupuncture on POD in diabetic patients undergoing surgery, to provide effective prevention and treatment measures of integrated traditional Chinese and western medicine for reducing the incidence of postoperative delirium in high-risk groups, and to provide clinical basis for further promotion of integrated traditional Chinese and western medicine anesthesia in the future.~To investigate the relationship between POD and rSO2 in diabetic patients undergoing surgery. To clarify the predictive value of intraoperative rSO2 monitoring on postoperative cognitive function in patients with diabetes, and to explore the effect of acupuncture on cerebral blood flow perfusion in patients with diabetes.