Objective To systematically evaluate the effect of perioperative cognitive intervention in the prevention of postoperative delirium(POD)in the operative patients.Methods The randomized controlled trials on perioperative cognitive intervention were retrieved from the databases of Wanfang,CNKI,VIP,Si-nomed,Pubmed,Cochrane Library,CINAHL,Web of Science and Embase.The retrieval time limit was from the database establishment to September 30,2023.The Cochrane bias risk tool was used to evaluate the litera-ture quality and RevMan 5.3 was used for conducting the meta analysis.Results A total of 19 trials were in-cluded,with a total of 3 751 research subjects,including 1 903 cases in the experimental group and 1 848 cases in the control group.The overall incidence rate of POD was 17.97％.The meta analysis results showed that perioperative cognitive intervention could reduce the incidence rate of POD[RR=0.47,95％CI(0.34,0.64),Z=4.83,P＜0.001].In the analysis from the research subjects,the intervention could rdecrease the incidence rates of POD in the elderly patients,orthopedic surgery patients and tumor surgery patients;in the analysis from the intervention timing,preoperative intervention and postoperative intervention all decreased the inci-dence rate of POD;in the analysis from the intervention forms,the conventional cognitive training intervention could decrease the incidence rate of POD,but the awareness interventional effect based on information technol-ogy or application program was not significant.Conclusion The perioperative cognitive intervention is an effective measure to prevent POD.In the future,the studies aiming at the intervention groups and intervention forms are still needed to explore the best intervention measures.

Objective To explore and construct an indicator system for performance appraisal in operating room nurses of cancer hospitals,in order to provide references for performance management.Methods From May to December 2022,the four-dimensional model of individual performance was used as the theoretical framework,and the research was carried out by literature research method,focus group interview method,Delphi expert consultation method and analytic hierarchy process,to establish the content of the performance appraisal index system of operating room nurses in cancer hospitals and the weight of each index.Results After 2 rounds of expert correspondence,29 questionnaires were sent out and 27 returned in the first round,with an expert positive coefficient of 93.10％;27 questionnaires were sent out and 27 returned in the second round,with an expert positive coefficient of 100％;expert authority coefficient of the first round was 0.941 and the second round was 0.937.In the first round,the variation coefficient of each index was 0-0.249,and the coordination coefficient was 0.201-0.352;in the second round,the variation coefficient of each index was 0-0.204,and the coordination coefficient was 0.275-0.407.Finally,a performance appraisal index system of operating room nurses in cancer hospitals was formed,which consisted of 4 first-level indicators,including task performance,interpersonal performance,adaptive performance and effort performance,11 second-level indicators and 54 third-level indicators.Conclusion The indicator system for performance appraisal in operating room nurses of cancer hospitals constructed in this study is reliable and scientific,specialized and applicable,and it can provide references for performance management.