Objective: To address systemic challenges in the blood system, such as supply-demand imbalance, inefficient allocation, and inappropriate clinical use, while bridging gaps in current theories regarding the integration of social mobilization, institutional practice, and policy coordination. It sought to construct a system dynamics model spanning from macro to micro levels to analyze the blood management system holistically. Methods: Key variables were identified by a systematic literature search in both Chinese and English databases. An improved Delphi method was then employed to conduct expert consultations across different fields, leading to the selection and determination of core variable sets for each sub-model. Furthermore, by defining their logical relationships, a system dynamics model was constructed to systematically analyze the operation mechanism of the blood management system. Results: Four core sub-models were developed: 1) A macro "Dynamic Balance" model quantifying regional supply-demand equilibrium and inventory control; 2) a mobilization "Three-Layer Funnel" model analyzing how socio-cultural factors, service channels, and policy incentives influence donation behavior; 3) an institutional "Dual-Cycle Regulation" model revealing hospital blood usage is driven by both disease burden (demand cycle) and management practices (regulation cycle); and 4) an individual "Three-Layer Filter" model standardizing clinical transfusion decisions based on necessity, risk-benefit, and context. These were integrated into a "Multi-Layer Linkage and Feedback" model, elucidating bidirectional interactions among five levels: policy environment, regional supply, blood station mobilization, hospital application, and clinical decision-making. Conclusion: This study constructed a system dynamics model for blood management. By defining key variables and their logical relationships, it systematically analyzes the system′s operational mechanism. The integrated framework connects multiple levels—regional supply, voluntary donation, hospital blood use, and clinical decision-making—revealing their intrinsic linkages. Future efforts should employ systems thinking to synergistically enhance supply-side mobilization, demand-side management, systemic regulation, and decision standardization to build a safe, efficient, and sustainable blood security system.

ObjectiveTo investigate the short-term efficacy and safety of different doses of Botulinum toxin type A (BTX-A) injected under ultrasound guidance combined with modified catheter-balloon localization for post-stroke cricopharyngeal dysfunction (CPD), and to explore a relatively appropriate dose. MethodsA total of 136 patients with post-stroke CPD admitted to Taizhou Hospital of Zhejiang Province from December, 2023 to February, 2026 were randomly assigned into control group, 50 U group, 70 U group and 100 U group, with 34 patients in each group. The control group received conventional rehabilitation, whereas the three BTX-A groups received conventional rehabilitation plus the corresponding dose of BTX-A injected under ultrasound guidance combined with modified catheter-balloon localization. Videofluoroscopic Swallowing Study (VFSS) scores, Functional Oral Intake Scale (FOIS) scores, Yale Pharyngeal Residue Severity Rating Scale (YPR-SRS) grades, Murray Secretion Severity Scale (MSS) grades and ultrasonographic parameters were compared before and two weeks after intervention. ResultsAfter intervention, FOIS scores improved significantly in all groups (|Z| > 2.843, P < 0.01), and YPR-SRS and MSS grades also showed significant improvements in all BTX-A groups (|Z| > 4.147, P < 0.001). Pairwise comparisons revealed that the order of improvement from best to worst for FOIS, YPR-SRS and MSS grades was the 100 U group, followed by 70 U group, and then 50 U group (P < 0.05). For VFSS scores, the effect of time, group and interaction were all significant (F > 9.68, P < 0.001); pairwise comparisons showed that 100 U group achieved the best outcomes (P < 0.001). Regarding the activity and velocity of the geniohyoid muscle, the effects of time, group and interaction were also significant (F > 7.34, P < 0.001); pairwise comparisons indicated that 100 U group outperformed the other groups in both activity and velocity (P < 0.001). For hyoid bone displacement distance and shortening rate, the effects of time and interaction were significant (F > 3.07, P < 0.05), and the main effects of time on duration and velocity were significant (P < 0.01); pairwise comparisons showed that the 100 U group had superior displacement distance and shortening rate compared to the other groups (P < 0.05). During the treatment and follow-up periods, no serious adverse event occurred in any group. ConclusionUltrasound-guided BTX-A injection assisted by modified catheter-balloon localization may further improve short-term swallowing function in patients with post-stroke CPD， with a dosage of 100 U.

This study examined the effect of islet macrophages on β-cell function changes during type 2 diabetes mellitus (T2DM) progression based on the traditional Chinese medicine theory that " moderate fire generating qi, hyperactive fire consuming qi" . T2DM is closely associated with chronic low-grade inflammation, with islet macrophages playing a central role in this process. Under physiological conditions, islet macrophages secrete anti-inflammatory and growth factors to regulate the immune response, promote cell proliferation, and support islet β-cell survival and function, reflecting the concept of " moderate fire generating qi" . However, during the pathological process of T2DM, islet macrophages become over-activated and dysfunctional, secreting large amounts of pro-inflammatory factors that trigger severe inflammatory responses and oxidative stress. This process damages islet β-cells, disrupts the islet microenvironment and blood supply, exacerbates local inflammation and structural damage, and worsens the survival environment of β-cells. Ultimately, this leads to fewer β-cells and function loss, aligning with the " hyperactive fire consuming qi" theory, where excessive fire depletes qi and blood. This study enhances the understanding and application of traditional Chinese medicine theories in modern medicine, offering a new perspective on T2DM prevention and treatment. Regulating islet macrophage function and reducing their pro-inflammatory responses may become key strategies for preserving β-cell function and slowing T2DM progression.

Intraoperative cell salvage (IOCS) has been widely applied as an important blood conservation measure in surgical operations. However, there is currently a lack of clinical practice guidelines for the implementation of IOCS in patients with malignant tumors. This report aims to provide clinicians with recommendations on the use of IOCS in patients with malignant tumors based on the review and assessment of the existed evidence. Data were derived from databases such as PubMed, Embase, the Cochrane Library and Wanfang. The guideline development team formulated recommendations based on the quality of evidence, balance of benefits and harms, patient preferences, and health economic assessments. This study constructed seven major clinical questions. The main conclusions of this guideline are as follows: 1) Compared with no perioperative allogeneic blood transfusion (NPABT), perioperative allogeneic blood transfusion (PABT) leads to a more unfavorable prognosis in cancer patients (Recommended); 2) Compared with the transfusion of allogeneic blood or no transfusion, IOCS does not lead to a more unfavorable prognosis in cancer patients (Recommended); 3) The implementation of IOCS in cancer patients is economically feasible (Recommended); 4) Leukocyte depletion filters (LDF) should be used when implementing IOCS in cancer patients (Strongly Recommended); 5) Irradiation treatment of autologous blood to be reinfused can be used when implementing IOCS in cancer patients (Recommended); 6) A careful assessment of the condition of cancer patients (meeting indications and excluding contraindications) should be conducted before implementing IOCS (Strongly Recommended); 7) Informed consent from cancer patients should be obtained when implementing IOCS, with a thorough pre-assessment of the patient's condition and the likelihood of blood loss, adherence to standardized internally audited management procedures, meeting corresponding conditions, and obtaining corresponding qualifications (Recommended). In brief, current evidence indicates that IOCS can be implemented for some malignant tumor patients who need allogeneic blood transfusion after physician full evaluation, and LDF or irradiation should be used during the implementation process.

Objective:To understand the status of bone health literacy in middle-aged and older female breast cancer patients undergoing chemotherapy and analyze its influencing factors using structural equation modeling.Methods:A convenience sampling method was used to select 250 middle-aged and older breast cancer patients undergoing chemotherapy in two tertiary hospitals in Xi'an from May to October 2024. Patients were surveyed using a general information questionnaire, the Bone Health Literacy Scale for Middle-Aged and Older Women, the Perceived Social Support Scale, and the General Self-Efficacy Scale. Pearson correlation analysis was used to examine the correlations among bone health literacy, perceived social support, and self-efficacy.Results:A total of 250 questionnaires were distributed, and 239 valid questionnaires were recovered, yielding an effective response rate of 95.6% (239/250). The mean score of the Bone Health Literacy Scale among the 239 patients was (39.71±8.16). Bone health literacy was positively correlated with perceived social support and self-efficacy ( P<0.01). Perceived social support directly affected bone health literacy and could also indirectly influence it through general self-efficacy, with an indirect effect value of 0.367, accounting for 45.2% of the total effect (0.367/0.812) . Conclusions:Healthcare professionals should implement effective interventions to enhance patients' perceived social support and strengthen their self-efficacy, thereby improving bone health literacy.

Cholesterol is an essential molecule for the biosynthesis of cell membranes and cell proliferation and differentiation,and the liver plays a central role in cholesterol metabolism and is responsible for the synthesis,uptake,secretion,and transport of cholesterol.The initial stages of cholesterol synthesis in the liver are particularly important,and abnormalities in such stages are closely associated with the progression of various liver diseases.Studies have shown that as a key rate-limiting enzyme in cholesterol biosynthesis,3-hydroxy-3-methylglutaryl-coenzyme A reductase(HMGCR)has well-defined regulatory properties and has been confirmed as an important target for the regulation of various liver diseases.This article reviews the process of cholesterol metabolism,the degradation and regulatory mechanisms of HMGCR,and the application of inhibitors,as well as the role of HMGCR in liver diseases,in order to provide new insights for scientific research and the clinical prevention and treatment of liver diseases.

Objective To evaluate the impact of healthcare-associated infection(HAI)control culture construction on the hand hygiene(HH)compliance of health care workers(HCWs),and provide a basis for strengthening HAI management.Methods HCWs in a hospital in Xi'an City were selected as the research objects.On the occasion of World HH Day,a series of publicity activities on HH as well as HAI prevention and control were held.Pre-activi-ties period was April 1-30,2024.During May 1-31,2024,a series of publicity activities on HH as well as HAI prevention and control were carried out.The post-activities investigation period was June 1-30,2024.During De-cember 1-31,2024,HH compliance survey was carried out in batches in the whole hospital(including key depart-ments).HH compliance at different stages was compared.Results After a series of publicity activities on HH as well as HAI prevention and control,HCWs'HH compliance rate was improved.HH compliance rate of nursing staff increased from 70.15％to 85.11％;HH compliance rate of HCWs before contacting with patients increased from 47.83％to 78.38％;both with statistically significant difference(both P＜0.05).During December 1-31,2024,a batch survey on HH compliance of the whole hospital(including key departments)showed that the HH compliance rates of medical and nursing staff in key departments were higher than those of the whole hospital,and the differences were statistically significant(all P＜0.05).HH compliance rates before aseptic operation and after contacting with patients in key departments were both higher than those of the whole hospital,and the differences were statistically significant(all P＜0.05).Conclusion Publicity activities on HH as well as HAI prevention con-trol can improve HH compliance rate of HCWs.HAI managers should pay more attention to the general depart-ments and improve HH compliance rate of HCWs.

Objective To investigate the effect of Yiqi Fumai Injection combined with atorvastatin on cardiac function in elderly coronary heart disease patients with angina of Qi-Yin deficiency pat-tern.Methods A total of 122 elderly coronary heart disease patients with angina pectoris of Qi-Yin deficiency pattern admitted to our department from September 2022 to September 2023 were recruited and randomly divided into control group and observation group,with 61 cases in each group.The control group was treated with atorvastatin,and the observation group was treated with Yiqi Fumai Injection on the basis of atorvastatin.Clinical efficacy,blood lipids,B-type natri-uretic peptide level,myocardial enzymes,cardiac function,and inflammatory factors were com-pared between the two groups.Results The total effective rate was significantly higher in the observation group than the control group(95.08％vs 80.33％,x2=6.157,P＜0.05).After 4 weeks of treatment,the observation group had obviously lower levels of total cholesterol,triglyc-erides,low-density cholesterol,B-type natriuretic peptide,lactate dehydrogenase,creatine kinase,creatine kinase isoenzyme,C-reactive protein,interleukin-6 and tumor necrosis factor-α,left ven-tricular end systolic diameter,left ventricular end-diastolic diameter and left ventricular end sys-tolic volume(P＜0.05,P＜0.01),and notably higher high-density cholesterol level and left ven-tricular ejection fraction when compared with the control group(1.44±0.39 mmol/L vs 1.23±0.30 mmol/L,P=0.001;55.36±13.37％vs 50.29±10.44％,P=0.021).Conclusion Yiqi Fumai Injection combined with atorvastatin shows significantly effective in the treatment of elderly coro-nary heart disease patients with angina pectoris of Qi-Yin deficiency pattern,and can improve lipid metabolism,B-type natriuretic peptide,myocardial enzymes and cardiac function,and reduce in-flammatory factors.

Objective:To investigate the status of development and application of information system of central sterile supply department(CSSD)in hospitals of China,so as to provide references for the promotion of CSSD information system in hospital.Methods:Hierarchical sampling method was adopted to combine with CSSD Professional Committee of Chinese Nursing Association to design questionnaire for Questionnaire Star Network Survey about basic information,CSSD information system,whether the CSSD information system connected with equipment,tracing links and tracing levels,identification method of apparatuses,automation of equipment in 3,074 hospitals of 22 provinces,4 municipalities directly under the central government,and 5 autonomous regions.Results:In 3,074 hospitals,1,811 hospitals(accounting for 58.91%)adopted the CSSD information system.The utilization rate of tertiary hospitals was 81.90%for the information system,which was higher than that(34.51%)in secondary hospitals,and the difference was statistically significant(x2=636.65,P<0.05).The proportion of hospitals that included the recycling,cleaning,disinfection,inspection and packaging,sterilization,storage,and distribution links of CSSD internal management into information management was all>88%,while the utilization link only accounted for 15.18%.The proportion that surgical apparatuses and the apparatuses of clinical diagnosis and treatment were included in management was higher in 1811 hospitals that used CSSD information system,which were respectively 88.02%and 84.70%,while the proportion of surgical soft endoscope was lower,which only was 49.20%.A total of 84.37%of hospitals conducted informatization management for using extracorporeal apparatuses and implants.The connection rates of the main CSSD equipment,which included the washing and disinfection machine,the pressure steam sterilizer and the low-temperature sterilizer,were connected with information system were respectively 56.60%,63.06%and 43.95%.The full compatibility between the information system and all monitoring methods did not be realized in these hospitals.Barcode was the main identification form(69.91%)of the CSSD information system,and personnel management was the most common management module(53.62%)of the information system.The utilization rate(2.93%-5.14%)of automated equipment was low,and 35.45%of the CSSD information systems had the function of automatic emergency handling.Conclusion:The CSSD informatization management of China has achieved remarkable results,but there are still problems such as insufficient connection of equipment,inclusion of monitoring data,and insufficient automation and intelligence.It is necessary to increase the promotion efforts to promote the high-quality development of hospitals.

Objective:To develop an ICU-acquired Swallowing Disorders Knowledge, Attitude and Practice Questionnaire for Nurses and to test its reliability and validity.Methods:The initial questionnaire was constructed through literature review, group discussion, Delphi expert consultation, and pilot-testing based on the theory of knowledge, attitude and practice. Convenience sampling was used to select 301 ICU nurses from Class Ⅲ Grade A hospitals in Honghe Hani and Yi Autonomous Prefecture, Beijing City, Yantai City, Wuhan City, and Xi'an City from January to February 2024 to examine the reliability and validity of the questionnaire.Results:The ICU-acquired Swallowing Disorders Knowledge, Attitude and Practice Questionnaire for Nurses consisted of three dimensions of knowledge, attitude, and practice with a total of 52 items. In the two rounds of consultation, the expert authority coefficients were all 0.871, and Kendall's harmony coefficient was 0.186 and 0.161, respectively ( P<0.01) . Exploratory factor analysis extracted three common factors with a cumulative variance contribution rate of 74.989%. The split-half reliability of the questionnaire was 0.835, and the Cronbach's α coefficient was 0.979, and the Cronbach's α coefficients for knowledge, attitude, and practice dimensions were 0.976, 0.989, and 0.972, respectively. The content validity index at the questionnaire level was 0.996, and the content validity index at the item level was 0.800 to 1.000. Conclusions:The ICU-acquired Swallowing Disorders Knowledge, Attitude and Practice Questionnaire for Nurses has good reliability and validity, and can be used as a tool to assess the knowledge, attitude and practice of nurses towards ICU acquired dysphagia.