Objective To explore the application of cluster nursing mode in perioperative period of elderly patients with hip fracture. Methods A retrospective cohort study design was used.Through convenience sampling method，50 elderly patients admitted to the hospital for hip fractures from January 2018 to December 2019 were selected as the control group. Meanwhile，47 elderly patients admitted to hospital for hip fractures from January 2020 to December 2021 were selected as the experimental group. The experimental group received cluster nursing，while the control group received routine nursing measures. The outcomes compared between the 2 groups included the effective rate of pain intervention，functional exercise compliance，and the incidence of complications. Results The effective rate of pain intervention（χ²=5.922，P=0.015） and functional exercise compliance（χ²=9.685，P=0.008）in the experimental group were higher than those in the control group. The number of perioperative complications（χ²=7.600，P=0.006） in the experimental group were lower than those in the control group. Conclusion The application of cluster nursing mode in the perioperative period of elderly patients with hip fractures can effectively control pain，improve functional exercise compliance，and reduce complications.

Objective To construct an intra-hospital emergency nursing program for patients with acute aortic dissection suitable for the clinical scenarios in China，aiming to provide theoretical and practical guidance for carrying out evidence-based nursing practice. Methods Based on evidence-based methods，domestic and foreign literature was retrieved and summarized for the best evidence to form the first draft of intra-hospital emergency nursing program for acute aortic dissection. Delphi technique was used to conduct 2 rounds of correspondence among 30 selected emergency medical and nursing experts，and the final program was improved and established. Results 58 pieces of literature were included，and 95 pieces of best evidence were summarized. The first draft of the program was formed and 2 rounds of correspondence were conducted，with the recovery rate of the questionnaire of 100%，the expert authority coefficients of 0.869 and 0.868，the coefficient of variation of 0~0.17；the coordination coefficients of 0.473 and 0.613，respectively（P<0.05）. The final intra-hospital emergency nursing programe for acute aortic dissection includes 3 level Ⅰ indicators，17 level Ⅱ indicators and 97 level Ⅲ indicators，including pre-examination triage，emergency rescue and nursing，and safe transferring. Conclusion The constructed intra-hospital emergency nursing programe for acute aortic dissection has detailed contents，wide coverage，strong scientificity and operability，which can provide references for emergency nursing practice.

Objective The constipation score scale for patients with severe craniocerebral injury was developed,and its reliability and validity were tested,providing an intuitive,effective and simple tool for assessing the risk degree of constipation in patients with severe craniocerebral injury. Methods Guided by the framework of the theoretical study on the cause of constipation in patients with severe craniocerebral injury,a systematic literature analysis was conducted on this theme. A preliminary comprehensive pool of items was then formed,evaluated and supplemented through Delphi expert reviews. The preliminary investigation was conducted and the ambiguous items were revised. Finally,project analysis and exploratory factor analysis were employed to identify the best potential structure of the scale. The convenience sampling method was adopted to select 108 patients with severe craniocerebral injury admitted to the Department of Neurosurgery of a tertiary hospital in Jinzhong City,Shanxi Province from January to December 2019 as the research subjects,and a questionnaire survey was conducted to evaluate the reliability and validity of the scale. Results A pre-test questionnaire of 27 items was formed according to the results of expert letter consultation. 3 items that did not meet the standard were deleted after item analysis. 5 factors were extracted by exploratory factor analysis,and the cumulative variance contribution rate was 66.347%. The 5 factors were named as intestinal peristalsis function,neuro-conscious dysfunction,excessive transport of intestinal water molecules,patient factor and medical personnel factor. The Cronbach’s α coefficient of the scoring scale was 0.908;the Cronbach’s α coefficient of each dimension was 0.830-0.957;the retest reliability was 0.879. Conclusion The constipation risk scale for patients with severe craniocerebral injury developed in this study has good reliability and validity. It can be used as an effective tool to evaluate the risk of constipation in patients with severe brain injury.