目的 了解越秀区助产机构医务人员对艾滋病母婴阻断知识及患者相关权益知识掌握情况,为更好地贯彻落实消除艾滋病母婴传播工作提供下一步工作策略和措施依据。方法 于2022年7月—8月,对广州市越秀区5家助产机构妇产科、保健科和医务科的医务人员进行艾滋病母婴阻断知识政策及HIV感染孕产妇相关权益知识的问卷调查。结果 465名医务人员对个别艾滋病母婴阻断政策了解不足,包括“人类免疫缺陷病毒（HIV）感染孕产妇到定点医疗机构终止妊娠或住院分娩时可以获得一定的减免”（知晓率79.78%）、“HIV感染孕产妇的宝宝可以免费领取一定数量的奶粉”（知晓率66.88%）;医务人员对HIV感染孕产妇的生育相关权益认识严重不足,对HIV感染孕产妇生育权益认识正确的仅有45.59%。临床护士群体对上述艾滋病母婴阻断政策及HIV感染孕产妇相关权益的知晓率低于临床医生及其他医务人员,组间比较差异有统计学意义（P<0.05）。结论 越秀区助产机构医务人员对艾滋病母婴阻断知识有一定的了解,但掌握不够完整、全面,对HIV感染患者的生育权认识严重不足,应进一步加强对助产机构医务人员、尤其是护士群体关于艾滋病母婴阻断政策知识及患者相关权益的培训,以更好地贯彻落实消除艾滋病母婴传播工作,保障HIV感染患者的权益。

Objective To understand the knowledge of medical staff of midwifery institutions in Yuexiu District about AIDS prevention of mother-to-children transmission（PMTCT）and patients' rights and interests,in order to provide the basis for the following work strategy and measures for better implementation of the elimination of mother-to-child transmission of HIV．Methods From July to August in 2022,a questionnaire survey about knowledge and policies of AIDS PMTCT and rights of HIV infected pregnant women was conducted among the medical staff of obstetrics and gynecology department,health care department and medical department in five midwifery institutions in Yuexiu District of Guangzhou City．Results A total of 465 medical workers had insufficient understanding of some policies on PMTCT of AIDS,including HIV-infected pregnant women can obtain certain fee waiver when they go to designated medical institutions to terminate pregnancy or hospitalized deliver（awareness rate of 79.78%）,HIV-infected pregnant women's babies can receive a certain amount of free milk powder（awareness rate of 66.88%）．There was a serious lack of awareness of reproductive rights of HIV-infected pregnant women among medical staff,and only 45.59% of them had correct understanding．The awareness rate of the PMTCT and the rights and interests of HIV-infected pregnant women among clinical nurses was significantly lower than that among clinicians and other medical staff．Conclusions The medical staff of midwifery institutions in Yuexiu District have some knowledge about the PMTCT of AIDS,but their knowledge is not complete and comprehensive,and their understanding of the reproductive rights of HIV-infected patients is seriously inadequate,so it is necessary to further strengthen the training of medical staff in midwifery institutions,especially nurses,on the policy knowledge of PMTCT of AIDS and the related rights and interests of patients,in order to better implement the elimination of mother-to-child transmission of AIDS and protect the rights and interests of infected patients．

目的 了解广州市社区居民对中医“治未病”的认知现状,分析其影响因素,并为中医“治未病”的进一步发展提出可行建议。方法 采用多阶段整群抽样法,对广州市不同区域的652名居民进行问卷调查,通过描述性分析和χ²检验分别对基本认知情况与影响因素进行阐述。结果 广州市居民对“治未病”服务了解情况不太理想（67.80%）,接受“治未病”服务的意愿情况较好（77.91%）,对于中医“治未病”服务的认知还比较片面,主要通过手机、网络、社区等方式了解相关内容。影响居民接受意愿的因素主要是年龄、学历、户口、职业类型等。结论 目前广州市社区中医“治未病”服务具有一定群众基础和发展潜力,但是还存在居民认知不足、宣传力度不够、服务能力不足等问题,应当着重从这些方面进行改进。

Objective To understand the current cognitive status of community residents in Guangzhou regarding traditional Chinese medicine（TCM）pre-treatment,analyze its influencing factors,and provide feasible suggestions for the further development of TCM pre-treatment．Methods By multi-stage cluster sampling method,a questionnaire survey was conducted on 652 residents in different regions of Guangzhou．Descriptive analysis and chi-square test were used to elucidate the basic cognitive situation and influencing factors．Results The understanding of TCM pre-treatment services among residents in Guangzhou was not ideal（67.8%）,and their willingness to receive TCM pre-treatment services was good（77.91%）．Their understanding of TCM pre-treatment services was quite one-sided,mainly through mobile phones,internet,communities and other means．The main factors affecting residents' willingness to accept this service were age,education level,household registration and occupation．Conclusions At present,the TCM pre-treatment service in the community of Guangzhou has a certain mass basis and development potential．However,there are still problems such as insufficient residents' awareness,insufficient publicity,and insufficient service capabilities,which should be improved in the future．

目的 分析医用几丁糖治疗不可复性关节盘前移位患者的临床疗效及其对患者生活质量、恐惧疾病进展的影响。方法 将200例确诊为不可复性关节盘前移位患者分为2组,实验组以颞下颌关节微创灌洗术联合几丁糖治疗,对照组采用单一颞下颌关节微创灌洗术治疗,分别于治疗前和治疗后1、3、6、12个月采用一般资料调查表、口腔健康影响程度量表（OHIP）-14中文版、恐惧疾病进展简化量表（FoP-Q-SF）、视觉疼痛模拟量表等进行问卷调查并进行统计学分析。结果 治疗后,2组患者最大张口度、疼痛评分、生活质量及恐惧疾病进展水平较治疗前明显改善（P>0.05）,且2组间比较,颞下颌关节微创灌洗术联合医用几丁糖在临床效果、生活质量及恐惧疾病进展水平长期效果明显优于单一颞下颌关节微创灌洗术（P>0.05）。结论 颞下颌关节微创灌洗术单一应用或联合医用几丁糖均对不可复性关节盘前移位患者疗效良好,对提升患者生活质量和缓解恐惧心理方面也有着重要意义,其中不可复性关节盘前移位联合应用几丁糖的长期疗效优于其单一应用。

Objective To analyze the efficacy of medical chitosan and its effect on the quality of life and fear of disease progression of patients with anterior disc displacement without reduction．Methods A total of 200 patients with anterior disc displacement without reduction were selected and divided into two groups,the experimental group was treated with temporomandibular joint lavage and medical chitosan,the control group was treated with temporomandibular joint lavage only．Before and after treatment with 1 month,3 months,6 months and 12 months,general data questionnaire,OHIP-14 Chinese version,FoP-Q-SF and visual analogue scale were used to investigate and the data were analyzed statistically．Results After treatment,the maximum mouth opening degree,pain score,quality of life and fear of disease progression were significantly improved compared with those before treatment,the differences were statistically significant（P>0.05）．The long-term curative effect of the temporomandibular joint lavage and medical chitosan was better than that of the temporomandibular joint lavage only in clinical outcome,quality of life and fear of disease progression（P>0.05）．Conclusions Temporomandibular joint lavage combined with medical chitosan and temporomandibular joint lavage only are effective in the treating anterior disc displacement without reduction,and can improve the quality of life and fear of disease progression,while the combined treatment has better long-term effect．

目的 通过关注追踪中老年人口腔健康问题对生活质量的影响,系统梳理中老年人口腔健康的相关影响因素及其关系,为此类人群的口腔健康及其相关生活质量的活动开展提供调研依据。方法 随机抽取2022年10月—2023年5月之间的266名中老年人参与调查,按照“病因链”收集该类人群的社会学特征、日常口腔保健行为、身体健康状况,分析评价中老年人口腔健康相关生活质量。结果 266名中老年人口腔健康常识和行为得分平均为（30.69±8.98）分,口腔健康评估平均为（8.59±3.68）分,口腔健康相关生活质量GOHAI总分为（25.65±8.10）分。单因素分析显示,人口学特征与一般身体健康状况、口腔健康常识和行为以及口腔健康情况与中老年人的口腔健康相关生活质量的GOHAI得分密切相关（P<0.05）。多因素分析显示,女性、年龄>45岁、患慢性病、日常生活习惯是影响中老年口腔健康和生活质量的独立危险因素（P<0.05或P<0.01）。结论 口腔健康作为全身健康的基础,其影响因素多种多样,通过控制干预主要影响因素来提高社区口腔健康和相关生活质量,以改善社区居民生活幸福值。

Objective By focusing on and tracking the impact of oral health problems of middle-aged and elderly people on the quality of life,the relevant influencing factors and relationships of oral health were systematically sorted out to provide a research basis for the development of oral health and related quality of life of such people．Methods A total of 266 middle-aged and elderly people were randomly selected from October 2022 to May 2023 to participate in the survey,and the sociological characteristics,daily oral health care behaviors and physical health status of this population were collected according to the “etiological chain”,so as to analyze and evaluate the quality of life related to the oral health of middle-aged and elderly people．Results The 266 middle-aged and elderly people had a mean score of（30.69±8.98）for general knowledge and behavioral scores of oral health,a mean score of（8.59±3.68）for oral health assessment,a total score of（25.65±8.10）for oral health-related quality of life GOHAI．The univariate analysis showed that demographic characteristics,general body health state,oral health cognition and behavior and oral health state were closely associated with the GOHAI score related to the oral health associated quality of life in the middle-aged and elderly people（P<0.05）．The multivariate analysis indicated that female,age >45 years old,presence of chronic diseases and daily living habits were indepdent risk factors of the oral health and quality of life of the middle-aged and elderly（P<0.05）．Conclusions Oral health,as the basis of systemic health,has various influencing factors,by controlling the main influencing factors can improve the community oral health and related quality of life,and improve the happiness of community residents．

目的 观察程序性死亡受体1（PD-1）联合细胞毒性T淋巴细胞相关蛋白4（CTLA-4）双免疫疗法对改善晚期乳腺癌近期疗效及远期预后的影响。方法 选择2020年5月—2022年5月商丘市第一人民医院收治的124例晚期乳腺癌患者为研究对象,经随机数字表法将其分为对照组（60例）和观察组（64例）,对照组予以常规PD-1单抗免疫疗法治疗,观察组采用PD-1联合CTLA-4双免疫疗法治疗,比较2组患者治疗前后肿瘤标志物水平、治疗后病灶缓解情况,对所有患者开展为期1年随访,统计并对比2组的不良反应发生情况及远期生存情况。结果 治疗前,2组患者的肿瘤标志物水平比较差异均无统计学意义（均P>0.05）;治疗后,观察组的癌胚抗原为（3.36±0.17）ng/mL,糖类抗原15-3为（25.33±5.28）U/mL,糖类抗原19-9为（38.77±5.62）U/mL,均低于对照组[（5.27±1.36）ng/mL、（28.44±5.18）U/mL、（41.25±5.46）U/mL,均P<0.05]。治疗后,观察组的完全缓解率为21.88%（14/64）,部分缓解率为31.25%（20/64）,病情稳定率为37.50%（24/64）,均高于对照组[8.33%（5/60）、13.33%（8/60）、23.33%（14/60）],肿瘤生长率为（30.27±5.18）%,肿瘤超进展率为6.25%（4/64）,均低于对照组[（33.49±5.32）%、18.33%（11/60）,均P<0.05]。治疗后,观察组的不良反应发生率为34.38%（22/64）,略高于对照组33.33%（20/60）,组间比较差异无统计学意义（P>0.05）;观察组的中位无进展生存期为（9.33±2.25）月,中位总生存期为（10.76±3.32）月,均高于对照组[（7.25±2.31）月、（7.41±1.62）月,均P<0.05]。结论 PD-1联合CTLA-4双免疫疗法能有效改善晚期乳腺癌的近期疗效及远期预后,此疗法未明显增加不良反应发生风险,安全性高。

Objective To observe the effect of programmed cell death protein-1（PD-1）combined with cytotoxic T lymphocyte-associated antigen-4（CTLA-4）dual immunotherapy on the short-term efficacy and long-term prognosis of advanced breast cancer．Methods A total of 124 patients with advanced breast cancer who were admitted to the First People's Hospital of Shangqiu City from May 2020 to May 2022 were selected as the research objects．They were randomly divided into the control group（60 cases）and the observation group（64 cases）by the method of random number table．The control group was treated with conventional PD-1 monoclonal antibody immunotherapy,and the observation group was treated with PD-1 combined with CTLA-4 double immunotherapy．The levels of tumor markers before and after treatment and the focal remission after treatment were compared between the two groups．All patients were followed up for one year,the incidence of adverse reactions and long-term survival between the two groups were compared．Results Before treatment,there was no statistically significant difference in the levels of tumor markers between two groups（all P>0.05）．After treatment,the carcino-embryonic antigen content of the observation group was（3.36±0.17）ng/mL,CA153 was（25.33±5.28）U/mL,and CA199 was（38.77±5.62）U/mL,which were lower than those of the control group [（5.27±1.36）ng/mL,（28.44±5.18）U/mL,（41.25±5.46）U/mL,all P<0.05]．After treatment,the complete remission rate of the observation group was 21.88%（14/64）,partial remission rate was 31.25%（20/64）,and stable disease rate was 37.50%（24/64）,all higher than those of the control group [8.33%（5/60）,13.33%（8/60）,23.33%（14/60）];tumor growth rate of the observation group was（30.27±5.18）%,hyper progressive disease rate was 6.25%（4/64）,both lower than those of the control group [（33.49±5.32）%,18.33%（11/60）,both P<0.05]．After treatment,the incidence of adverse reactions in the observation group was 34.38%（22/64）,slightly higher than that in the control group 33.33%（20/60）（P>0.05）．The median progression free survival of the observation group was（9.33±2.25）months,and the median overall survival was（10.76±3.32）months,both higher than those of the control group [（7.25±2.31）months and（7.41±1.62）months]（P<0.05）．Conclusions PD-1 combined with CTLA-4 dual immunotherapy can effectively improve the short-term efficacy and long-term prognosis of advanced breast cancer．This therapy does not significantly increase the risk of side effects,which is safe．

目的 评估内镜下切开联合丝裂霉素C注射治疗复发性食管良性狭窄的疗效和安全性。方法 对2021年6月—2022年5月在厦门大学附属中山医院消化内科接受内镜下切开联合或不联合丝裂霉素C注射的43例复发性食管良性狭窄患者进行回顾性分析,分为切开组与切开联合丝裂霉素C注射组,对比2组间狭窄缓解率、并发症及预防狭窄复发的效果。结果 2组患者均顺利完成治疗,无严重并发症发生。2组患者治疗后狭窄缓解率无显著差异（P>0.05）。随访12个月,切开联合丝裂霉素C注射组在狭窄缓解时长、狭窄复发再次扩张次数及扩张间隔均优于切开组（P<0.05）。结论 内镜下切开联合丝裂霉素C注射治疗安全、有效,虽然治疗后狭窄缓解率与单纯切开无显著差异,但可延长狭窄缓解期,改善狭窄复发后重复扩张的频率及间隔时间。

Objective To evaluate the efficacy and safety of endoscopic incision combined with mitomycin C injection in the treatment of recurrent benign esophageal stenosis．Methods A retrospective analysis was conducted on 43 patients with recurrent benign esophageal stenosis who received endoscopic incision combined with or without mitomycin C injection in the Department of Gastroenterology,Zhongshan Hospital of Xiamen University from June 2021 to May 2022．Patients were divided into incision group and incision combined with mitomycin C injection group．The stenosis remission rate,complications and preventive effect of stenosis recurrence were compared between the two groups．Results All patients in the two groups successfully completed the treatment without serious complications．There was no significant difference in the stenosis remission rate between the two groups after treatment（P>0.05）．In the follow-up 12 months after treatment,incision combined with mitomycin C injection group was better than incision group in the duration of stenosis remission,the number of stenosis recurrence and dilation interval（P<0.05）．Conclusions Endoscopic incision combined with mitomycin C injection is safe and effective．Although the remission rate of stenosis after treatment is not significantly different from that of incision alone,it can prolong the remission period of stenosis and improve the frequency and interval of repeated dilation after stenosis recurrence．

目的 探索整体针联合运动处方应用于伴骨质疏松症（OP）的膝骨关节炎（KOA）患者全膝关节置换术（TKA）术前预康复的可行性、有效性及其对Wnt/β-catenin通路的影响。方法 2021年5月—2022年4月在广州市第一人民医院南沙医院骨科住院治疗的伴OP的KOA患者随机入组,分3组：A组予常规术前宣教和准备;B组在A组基础上,术前应用标准化运动处方3周;C组在A组基础上,术前联合应用整体针和运动处方3周。比较术前3周、术前1天、术后8周视觉模拟疼痛评分（VAS）、关节活动度（ROM）、膝关节功能评分（HSS）的组间差异,并比较术中关节液β连环蛋白（β-catenin）、基质金属蛋白酶-13（MMP-13）、重组人Dickkopf相关蛋白-1（DKK-1）含量的组间差异。结果 共纳入50例受试者,A组15例,B组18例,C组17例。术前1天组间方差分析显示：B、C组VAS均低于A组（P<0.05）,C组VAS低于B组（P<0.05）;B、C组ROM均高于A组（P<0.05）,B、C组ROM比较差异无统计学意义（P>0.05）;B、C组HSS均高于A组（P<0.05）,C组HSS高于B组（P<0.05）。术后8周组间方差分析显示：B、C组VAS均低于A组（P<0.05）,C组VAS低于B组（P<0.05）;B、C组ROM均高于A组（P<0.05）,B、C组ROM比较差异无统计学意义（P>0.05）;B、C组HSS均高于A组（P<0.05）,C组HSS高于B组（P<0.05）。术中关节液标志物含量组间方差分析显示：B、C组β-catenin、MMP-13含量均低于A组（P<0.05）,C组β-catenin、MMP-13含量均低于B组（均P<0.05）;B、C组DKK-1含量均高于A组（均P<0.05）,C组DKK-1含量高于B组（P<0.05）。结论 整体针联合运动处方在OP患者TKA术前应用切实可行,可有效缓解疼痛、改善功能。整体针可增强运动处方的正向预康复作用,其作用机制可能与Wnt/β-catenin通路调节有关。

Objective To explore the feasibility,effectiveness and impact on the Wnt/β-catenin pathway of combined holistic acupuncture and exercise prescription for preoperative rehabilitation in knee osteoarthritis（KOA）patients with osteoporosis（OP）undergoing total knee arthroplasty（TKA）．Methods KOA patients with OP were divided into three groups randomly：Group A received conventional preoperative education and preparation,Group B received standardized exercise prescription for three weeks additionally,Group C received combined holistic acupuncture and exercise prescription for three weeks additionally．Between-group differences in visual analogue scale（VAS）pain scores,range of motion（ROM）and knee joint function scores（HSS）were compared at 3 weeks preoperatively,1 day preoperatively and 8 weeks postoperatively．Differences in intraoperative joint fluid levels of β-catenin,MMP-13 and DKK-1 were also compared．Results A total of 50 participants were included,with 15 in Group A,18 in Group B and 17 in Group C．Baseline conditions were comparable among the three groups．One-day preoperative analysis showed that VAS scores were lower in both Groups B and C compared to Group A（P<0.05）,and VAS score was lower in Group C compared to Group B（P<0.05）．ROM was higher in Groups B and C compared to Group A（P<0.05）,with no statistically significant between-group difference between Groups B and C．HSS scores were higher in Groups B and C compared to Group A（P<0.05）,and HSS score was higher in Group C compared to Group B（P<0.05）．Eight-week postoperative analysis revealed that VAS scores were lower in both Groups B and C compared to Group A（P<0.05）,and VAS score was lower in Group C compared to Group B（P<0.05）．ROM were higher in Groups B and C compared to Group A（P<0.05）,with no statistically significant between-group difference between Group B and C．HSS scores were higher in Groups B and C compared to Group A（P<0.05）,and HSS score was higher in Group C compared to Group B（P<0.05）．Intraoperative joint fluid biomarker analysis showed that β-catenin and MMP-13 levels were lower in Groups B and C compared to Group A（P<0.05）,and β-catenin and MMP-13 levels were lower in Group C compared to Group B（P<0.05）．DKK-1 levels were higher in Groups B and C compared to Group A（P<0.05）,and DKK-1 level was higher in Group C compared to Group B（P<0.05）．Conclusions Combined holistic acupuncture and exercise prescription is feasible and effective for preoperative rehabilitation in TKA for KOA patients with OP．Holistic acupuncture enhances the positive pre-rehabilitation effect of exercise prescription,and its mechanism may be related to the regulation of the Wnt/β-catenin pathway．

目的 上消化道出血发作急、变化快,具有较高的危险性,本研究目的在于分析急性上消化道出血患者的临床特征及危险因素,为临床诊治提供参考。方法 将2019年1月—2021年2月年我院的242例疑似急性上消化道出血患者作为研究对象,收集患者的年龄、性别、是否有长期抽烟史、饮酒史,是否有合并症以及并发症等一般资料,运用单因素分析其临床特征,运用多因素Logistic回归分析其独立危险因素。结果 患者年龄、长期饮酒史、消化性溃疡、门脉高压、急性胃黏膜病变、服用阿司匹林(ASA药物)、Hp感染等临床特征与急性上消化道出血具有相关性,与患者的性别、长期抽烟史不具有相关性;年龄、消化性溃疡、门脉高压、服用ASA药物、Hp感染是急性上消化道出血的危险性因素。结论 急性上消化道出血病势程度较重,死亡率高,出血需及时针对性治疗;对于急性上消化道出血高危患者,严密监测病情变化,评估其风险系数。

Objective Upper gastrointestinal bleeding has a high risk because of its rapid change. The purpose of this study is to analyze the clinical characteristics and risk factors of patients with acute upper gastrointestinal bleeding, so as to provide reference for clinical diagnosis and treatment. Methods A total of 242 patients with suspected acute upper gastrointestinal bleeding in our hospital from January 2019 to February 2021 were selected as the research objects. The general data such as patients' age, gender, whether they had a long-term history of smoking or drinking, whether they had complications and data of complications were collected. The clinical characteristics were analyzed by univariate analysis, and the independent risk factors were analyzed by multivariate Logistic regression analysis. Results Age, long-term drinking history, peptic ulcer, portal hypertension, acute gastric mucosal lesions, taking aspirin (ASA drugs), Hp infection and other clinical characteristics were correlated with acute upper gastrointestinal bleeding, but gender and long-term smoking history were not. Age, peptic ulcer, portal hypertension, taking ASA drugs and Hp infection were the risk factors of acute upper gastrointestinal bleeding. Conclusion The acute upper gastrointestinal bleeding is a serious disease, with high mortality, and the bleeding needs timely targeted treatment. For patients with high-risk acute upper gastrointestinal bleeding, closely monitor the changes of the disease and evaluate the risk coefficient are needed.

目的 分析CT+MRI在原发性肝癌诊断与介入治疗预后评估中的临床意义。方法 选定本院2019年1月—2021年1月住院治疗的150例原发性肝癌患者,入院后均接受介入治疗,分别予以CT、MRI检查,将手术病理检查结果作为本次研究的金标准,比较CT、MRI、CT+MRI诊断效能,Kappa检验CT、MRI、CT+MRI与金标准的一致性,比较CT、MRI、CT+MRI介入术后病灶检出率。结果 CT+MRI诊断准确率(98.67%)、特异度(75.00%)、灵敏度(99.32%)均高于CT(86.00%、25.00%、87.67%)、MRI(90.67%、91.78%、50.00%),P＜0.05(差异均有统计学意义),CT+MRI与金标准的一致性较好(Kappa值为0.779),CT、MRI与金标准的一致性一般(Kappa值为0.527、0.596)。CT+MRI介入术后病灶总检出率(12.00%)高于CT(2.00%)、MRI(4.00%),P＜0.05(差异有统计学意义)。结论 CT+MRI可提高原发性肝癌患者介入术后病灶检出率,弥补了单一CT、MRI检查的不足。

Objective To evaluate the clinical significance of CT + MRI scans in diagnosis of primary liver cancer and prognosis evaluation after interventional therapy. Methods A total of 150 cases of patients with primary liver cancer admitted to our hospital from January 2019 to January 2021 were selected. They all received interventional treatment, and were examined by CT and MRI. The results of pathological examination were taken as the gold standard in this study to compare the diagnostic efficacy of CT, MRI and CT+MRI.Kappa value was used to compare the consistency of CT, MRI, CT+MRI scans with gold standard, and compared the detection rate of lesions after CT, MRI and CT+MRI interventional surgery. Results The diagnostic accuracy (98.67%), specificity (75.00%) and sensitivity (99.32%) of CT + MRI scans were higher than those of CT (86.00%, 25.00%, 87.67%) and MRI scans (90.67%, 91.78%, 50.00%),P<0.05 (which differences were statistically significant). The consistency of CT + MRI scans with gold standard was good (kappa value was 0.779), but the consistency of CT/MRI scans with gold standard were not satisfying (kappa value were 0.527, 0.596). The total detection rate of lesions after CT + MRI interventional surgery (12.00%) was higher than that of CT (2.00%) and MRI (4.00%, which P<0.05). Conclusion CT + MRI scans can improve the detection rate of lesions in patients with primary liver cancer after interventional therapy, and make up for the deficiency of only CT or MRI scans.

目的 分析银川地区单采献血者流失原因,制定回召策略。方法 对银川地区末次献血时间在2019年1月1日—2020年12月31日的1 498名单采献血者逐个致电回访,使用SPSS 26.0软件进行统计学分析,不同组间变量比较用χ²检验,P<0.05为差异有统计学意义。结果 成功召回355人(23.7%),和未召回组比较,性别无统计学差异(P>0.05),各年龄段、民族、职业、文化程度、血型之间均有统计学差异(P<0.05)。18～24岁、汉族、国家企事业单位、研究生及以上学历人群回召率最高;随着年龄增长、文化程度降低,回召成功率下降。未召回原因中工作繁忙占比最大,其次为在外地、身体原因、亲友献血者、失联、学生毕业、对献血误解、停车不便。结论 不断优化、细化单采献血服务,让工作更加人性化,加大献血正面形象的宣传,不断创新,从而保留固定献血者。

Objective To analyze the causes of apheresis blood donors loss in Yinchuan area, and to work out the call-back strategy. Methods A total of 1 498 blood donors whose last blood donation time was between January 1, 2019 and December 31, 2020 in Yinchuan area were called one by one. SPSS 26.0 software was used for statistical analysis. Variables between different groups were compared usingχ² test, and P<0.05 was considered statistically significant. Results Three hundred and fifty-five people (23.7%) were successfully called back. Compared with the failed call-back group, there was no significant difference in gender (P>0.05), but there were significant differences in age, nationality, occupation, education level and blood type (P<0.05). People aged 18-24, with Han Nationality, working in national enterprises or institutions, or with graduate degree or above had the highest call-back rate; with the increase of age and the decrease of education level, the success rate of call-back decreased. Among the reasons for call-back failure, no free time accounted for the largest proportion, followed by being in other places, physical reasons, donors of relatives and friends, losing contact, graduated from school, misunderstanding of blood donation, and inconvenient parking. Conclusion We will continue to optimize and refine the apheresis blood donation service, make the work more humanized, expand the publicity of the positive image of blood donation, and innovate constantly, so as to retain the blood donors.