1.Rapid Qualitative Analysis Methods and Their Application in Implementation Science
Xuehan WEI ; Xiaoying CHEN ; Runze WANG ; Yingqian ZHANG ; Xuehan LIU ; Jin SUN ; Guoyan YANG ; Wei XIAO ; Chunli LU
Medical Journal of Peking Union Medical College Hospital 2026;17(2):546-556
Implementation science (IS) aims to systematically analyze and address the real-world gaps from evidence to practice and the influencing factors of the context. It is necessary to carry out qualitative research to gather relevant implementation outcomes. Nevertheless, traditional qualitative analysis has issues such as consuming a great deal of time and energy, and it is unable to promptly provide the crucial data required for implementation science research. The Rapid Qualitative Analysis (RQA) method, through semi-structured interviews and the adoption of techniques such as immediate data condensation and matrix analysis, can effectively shorten the cycle of qualitative data collection and data processing. RQA can promptly identify social determinants of health such as structural barriers, facilitators, and the behavioral characteristics of target groups. It provides a real-time basis for public health decision-making, the interpretation of complex social phenomena, and the process and effectiveness evaluation of research projects. Although RQA is difficult to conduct in-depth theoretical analysis based on grounded theory, its efficiency and flexibility make it the preferred tool for large-scale and time-sensitive research. Thus, it has been widely applied in implementation science research. This paper sorts out the core concepts and commonly used technical methods of RQA, as well as the differences between RQA and traditional qualitative analysis. It also explores the applications of RQA in intervention optimization, process evaluation, and implementation outcome evaluation. By integrating specific cases, this paper clarifies its application value in the field of implementation science. In the future, it is advisable to explore the integration of RQA with technologies such as artificial intelligence and big data, in order to bridge the gap between the transformation of scientific research achievements into practice. Under circumstances of limited resources or tight time constraints, RQA can be used to efficiently conduct implementation science research, providing convenient and scientific methodological and technical support for accelerating evidence-based practice.
2.Challenges and Recommendations for Implementing Key Technologies in Decentralized Clinical Trials of Traditional Chinese Medicine
Runze WANG ; Xuehan WEI ; Xiaoying CHEN ; Yingqian ZHANG ; Jin SUN ; Chunli LU
Journal of Traditional Chinese Medicine 2026;67(9):926-934
Traditional Chinese medicine (TCM) clinical trials face challenges such as low participant compliance, insufficient geographical coverage, and cost-effectiveness imbalances. Decentralized clinical trials (DCT), enabled by digital technology for remote data collection and monitoring, offer a new direction for TCM clinical trial research. This article systematically reviews three novel clinical trial design models. Combining the holistic concept and indivi-dualized treatment characteristics of TCM, it analyzes the challenges currently faced in TCM DCT practice, including the digitization and standardization of TCM theory, data security, privacy protection and patient engagement difficu-lties, insufficient ethical review and regulatory system adaptation, inadequate personnel training, and a shortage of interdisciplinary talent. Addressing these challenges, the article proposes methodological recommendations for DCT implementation that align with the principles of TCM diagnosis and treatment. These recommendations include promoting the intelligentization and standardization of TCM practices, constructing a full-chain data security and privacy protection system, improving the ethical framework and clarifying regulatory responsibilities, and cultivating and building interdisciplinary talent and capabilities, which provide theoretical and technical references for establishing standardized DCT practices in TCM.
3.Challenges and Recommendations for Implementing Key Technologies in Decentralized Clinical Trials of Traditional Chinese Medicine
Runze WANG ; Xuehan WEI ; Xiaoying CHEN ; Yingqian ZHANG ; Jin SUN ; Chunli LU
Journal of Traditional Chinese Medicine 2026;67(9):926-934
Traditional Chinese medicine (TCM) clinical trials face challenges such as low participant compliance, insufficient geographical coverage, and cost-effectiveness imbalances. Decentralized clinical trials (DCT), enabled by digital technology for remote data collection and monitoring, offer a new direction for TCM clinical trial research. This article systematically reviews three novel clinical trial design models. Combining the holistic concept and indivi-dualized treatment characteristics of TCM, it analyzes the challenges currently faced in TCM DCT practice, including the digitization and standardization of TCM theory, data security, privacy protection and patient engagement difficu-lties, insufficient ethical review and regulatory system adaptation, inadequate personnel training, and a shortage of interdisciplinary talent. Addressing these challenges, the article proposes methodological recommendations for DCT implementation that align with the principles of TCM diagnosis and treatment. These recommendations include promoting the intelligentization and standardization of TCM practices, constructing a full-chain data security and privacy protection system, improving the ethical framework and clarifying regulatory responsibilities, and cultivating and building interdisciplinary talent and capabilities, which provide theoretical and technical references for establishing standardized DCT practices in TCM.
4.Clinical study of salvage second allogeneic hematopoietic stem cell transplantation in 17 cases
Wenqiong WANG ; Wei LIU ; Huihui LIU ; Xiaoying YANG ; Shuanglian XIE ; Hongtao LING ; Yiming ZHAO ; Yujun DONG
Organ Transplantation 2026;17(1):124-132
Objective To summarize and analyze the efficacy and influencing factors of second allogeneic hematopoietic stem cell transplantation (allo-HSCT) for acute leukemia relapsing after the first allo-HSCT. Methods Clinical data of 17 patients with acute leukemia who underwent second allo-HSCT at Peking University First Hospital from January 2005 to December 2024 were retrospectively analyzed. Results Among the 17 patients, 7 achieved long-term disease-free survival after second transplantation. The median progression-free survival after successful second transplantation was 7 months (range 8 days to 69 months). The relapse fatality was 24%, and the transplant-related fatality was 35%. Conclusions Second transplantation is an effective treatment for relapsed and refractory acute leukemia, but the relapse fatality and transplant-related fatality remain high. Patient age, time of relapse after the first transplantation and disease status before second transplantation are all factors that affect the efficacy of second transplantation. Younger age, late relapse and complete remission of disease before second transplantation are all beneficial for long-term disease-free survival after second transplantation.
5.Impact of X-ray irradiation on stored platelets and their mitochondrial function
Na WANG ; Ning AN ; Xiaoying WANG ; Dongyan YANG ; Xiaole ZHANG ; Yajuan WANG ; Jie CHEN ; Xingbin HU ; Chen CHEN
Chinese Journal of Blood Transfusion 2026;39(1):16-23
Objective: To investigate the effects of clinical routine X-ray irradiation dose (average irradiation dose: 29.7±0.54 Gy) on the function, apoptosis, activation state and mitochondrial function of platelets during in vitro storage, so as to provide experimental evidence for optimizing platelet irradiation strategies. Methods: A paired experimental design was adopted. Platelets were collected from 12 healthy donors, and each sample was equally divided into the irradiated group and the control group (non-irradiated). All samples were stored for 5 days under standard platelet preservation conditions (22±2℃, continuous oscillation). Flow cytometry was used to detect platelet count, apoptosis rate (Annexin V+ positive rate), activation markers (CD62P, PAC-1, CD42b) and reactive oxygen species (ROS) level. Meanwhile, mitochondrial-specific probes were used to evaluate changes in mitochondrial count, membrane potential and adenosine triphosphate (ATP) content. Additionally, transmission electron microscopy (TEM) was employed to observe the ultrastructure of platelets, with a focus on mitochondrial morphology, platelet membrane integrity and granule distribution. Results: Within 5 days of storage, the platelet count was (841±89.16)×10
/L in the irradiated group and (824.5±92.88)×10
/L in the control group, with no statistically significant difference between the two groups (P=0.54). The apoptosis rate was (4.94±1.39) % in the irradiated group and (5.50±0.83) % in the control group, showing no significant difference (P=0.31). For activation indicators, the CD62P expression rate was (24.32±7.57) % in the irradiated group versus (25.21±8.13) % in the control group (P=0.43). The PAC-1 positive rates were (12.15±4.43) % and (11.75±3.40) % in the irradiated group and control group, respectively (P=0.44). The CD42b expression rates were (12.14±4.43) % and (11.75±3.4) % in the two groups, respectively (P=0.47). The ROS levels were (31.98±8.1) % and (30.64±5.89) % in the two groups, respectively (P=0.45). No significant differences were found in the above indicators. For mitochondrial function indicators, the mitochondrial count was (55.88±11.49) % in the irradiated group and (53.5±7.24) % in the control group (P=0.57). The ATP contents were (42.45±5.29) % and (41.58±9.50) % in the irradiated group and control group, respectively (P=0.77). The relative membrane potential values were (59.53±10.89) % and (57.49±6.54) % in the two groups, respectively (P=0.47). No significant difference were observed on the mitochondrial function-related indicators. TEM further confirmed that the ultrastructure of platelets in the irradiation group was intact, the mitochondrial morphology was normal, and no pathological changes such as swelling or vacuolization were observed. Conclusion: This study evaluated the impact of conventional-dose X-ray irradiation on platelet storage quality, confirming that this dose does not significant impair platelet count, apoptosis rate, activation status, or mitochondrial function. This finding provides important experimental evidence for the clinical promotion of X-ray irradiation technology and suggests its potential as a safe alternative to γ irradiation. Future studies could further expand the sample size and extend the observation period to verify the effects of X-ray irradiation on long-term platelet storage and post-transfusion in vivo survival rate.
6.Predictive value of corneal central thickness and coefficient of variation of cell area for secondary glaucoma caused by uveitis
International Eye Science 2026;26(3):523-527
AIM:To investigate the predictive value of central corneal thickness(CCT)and coefficient of variation(CV)of endothelial cell area for secondary glaucoma in patients with uveitis.METHODS: A retrospective study was conducted on uveitis patients admitted to our hospital from July 2023 to April 2025. Based on the occurrence of secondary glaucoma, patients were divided into an occurrence group and a non-occurrence group, and the clinical data of the two groups were compared. Univariate and multivariate Logistic regression analyses were performed to screen for factors affecting poor prognosis. The predictive value of CCT and CV for secondary glaucoma in patients with uveitis was analyzed using receiver operating characteristic(ROC)curves.RESULTS: A total of 100 uveitis patients(100 eyes)were included and categorized into an occurrence group(16 cases, 16 eyes)and a non-occurrence group(84 cases, 84 eyes), there were 9 males and 7 females in the occurrence group, with a mean age of 45.25±10.32 years, and there were 40 males and 44 females in the non-occurence group, with a mean age of 43.89±12.47 years. The CCT in the occurrence group was significantly lower than that in the non-occurrence group, while the CV was significantly higher than that in the non-occurrence group(both P<0.001). Multivariate Logistic regression analysis showed that CCT was a protective factor, and CV was a risk factor for secondary glaucoma in patients with uveitis(both P<0.01). The areas under the ROC curve(AUC)for CCT and CV in predicting secondary glaucoma were 0.794 and 0.792, respectively. The combined predictive model yielded an AUC of 0.888, with a sensitivity of 98.15% and a specificity of 67.74%, demonstrating good predictive efficacy.CONCLUSION: CCT and CV have certain clinical value in predicting secondary glaucoma in uveitis patients. The combined diagnostic approach demonstrates higher efficacy and serves as an auxiliary indicator for assessing the risk of secondary glaucoma in patients with uveitis, allowing for targeted clinical prevention and treatment measures.
7.Influencing factors for influenza vaccination among the elderly
LI Yiyao ; LI Xiaoju ; SHEN Xiaoying ; ZHANG Xianqi ; ZHAO Li ; ZHANG Yuhan ; WANG Xinmeng
Journal of Preventive Medicine 2025;37(1):31-35
Objective:
To investigate the status and influencing factors of influenza vaccination among the elderly, so as to provide insights into improving the strategies for influenza vaccination among the elderly.
Methods:
Elderly people aged 60 years and above were recruited from one community each in five sub-districts of Shihezi City, Xinjiang Uygur Autonomous Region using a random sampling method. Demographic information, knowledge about influenza and influenza vaccines, vaccine literacy and influenza vaccination status in the past year were collected through questionnaire surveys. Factors affecting influenza vaccination among the elderly were analyzed using a multivariable logistic regression model.
Results:
Totally 1 121 valid questionnaires were recovered, with an effective recovery rate of 95.08%. There were 417 males (37.20%) and 704 females (62.80%). The majority were aged 60-<81 years, accounting for 80.37% (901 individuals). The awareness of knowledge about influenza and influenza vaccines was 78.86%. Low vaccine literacy was observed in 786 individuals, representing 70.12%. The influenza vaccination rate was 20.96%. Multivariable logistic regression analysis showed that age (71-<81 years, OR=1.607, 95%CI: 1.041-2.479; ≥81 years, OR=1.719, 95%CI: 1.040-2.842), educational level (middle school/technical secondary school, OR=0.616, 95%CI: 0.416-0.911), medical expense payment (employee medical insurance, OR=6.531, 95%CI: 2.030-21.010; resident medical insurance, OR=3.385, 95%CI: 1.095-10.466; public expense, OR=4.828, 95%CI: 1.700-13.712), vaccination willingness (yes, OR=6.237, 95%CI: 3.277-11.871), influenza vaccination history (yes, OR=14.600, 95%CI: 8.733-24.408) and vaccine literacy (medium and above, OR=2.412, 95%CI: 1.636-3.555) were associated with influenza vaccination among the elderly.
Conclusion
The influenza vaccination rate among the elderly was relatively low, and was mainly affected by age, educational level, medical expense payment, vaccination willingness, influenza vaccination history and vaccine literacy.
8.Effects of silver needle comprehensive therapy on the ultrasonographic morphology of multifidus muscles in patients with lumbar disc herniation:an ultrasound morphologic assessment
Zhengpei CAO ; Shengsheng LU ; Jiahuan ZHANG ; Xiaoying WANG
Chinese Journal of Tissue Engineering Research 2025;29(11):2261-2267
BACKGROUND:Many studies have focused on acupuncture,such as silver needles,for the treatment of lumbar disc herniation,but there are few studies based on the myofascial trigger point theory. OBJECTIVE:To observe the effects of silver needle comprehensive therapy on the ultrasound morphology and clinical efficacy of multifidus muscles in patients with lumbar disc herniation based on the theory of myofascial trigger points. METHODS:A total of 159 patients with lumbar disc herniation who were seen from January 2022 to April 2023 were selected as the research subjects and randomly divided into three groups:conventional group(n=53),traditional acupuncture group(n=53),and silver needle group(n=53).The conventional group received routine western medicine treatment;the traditional acupuncture group used traditional acupuncture therapy based on meridian pathways and symptom localization;and the silver needle group used silver needle warm acupuncture at myofascial trigger points for intervention.All three groups received continuous treatment for 4 weeks.The number of myofascial trigger points,pain assessment,lumbar function evaluation,ultrasound morphology changes of multifidus muscles,clinical efficacy,and traditional Chinese medicine symptom score were recorded before and after treatment in the three groups. RESULTS AND CONCLUSION:(1)After treatment,the number of myofascial trigger points in the lumbar muscles decreased in all groups,and the silver needle group showed a significant reduction compared with the traditional acupuncture group and the conventional group(P<0.05).(2)The pain rating index score,visual analogue scale score,present pain intensity score,Oswestry disability index score,and Roland-Morris disability questionnaire score in the silver needle group were lower than those in the traditional acupuncture group and the conventional group(P<0.05).(3)The ultrasound morphology indexes of multifidus muscles in the silver needle group were superior to those in the traditional acupuncture group and the conventional western medicine group(P<0.05).(4)Traditional Chinese medicine symptom scores in the silver needle group were lower than those in the traditional acupuncture group and the conventional western medicine group(P<0.05).(5)There were significant differences in clinical efficacy among the three groups(P<0.05).To conclude,applying silver needle comprehensive therapy based on the theory of myofascial trigger points can effectively reduce pain,improve clinical efficacy,and enhance lumbar spine dysfunction and multifidus muscle morphology in patients with lumbar disc herniation.
9.Predictive study of left ventricular end-systolic wall stress and biventricular strain for different types of heart failure after myocardial infarction
Mingtian CHEN ; Yesong HOU ; Xiaoying ZHAO ; Lujing WANG ; Yujiao SONG ; Xinxiang ZHAO
Chinese Journal of Radiology 2025;59(12):1401-1409
Objective:To investigate the predictive value of cardiac MR (CMR)-derived left ventricular end-systolic wall stress (LVESWS) and biventricular strain parameters for different types of heart failure in patients with myocardial infarction.Methods:This retrospective cohort study included 231 patients diagnosed with myocardial infarction by clinical and CMR criteria at the Second Affiliated Hospital of Kunming Medical University between January 2015 and July 2023. The endpoint was the occurrence of heart failure, and patients were divided into 3 groups: no heart failure ( n=85), heart failure with preserved ejection fraction (HFpEF, n=74), and heart failure with reduced ejection fraction (HFrEF, n=72). Clinical indicators such as age and infarct size were collected. CMR parameters analysis included LVESWS, left ventricular global radial strain (LVGRS), left ventricular global circumferential strain (LVGCS), left ventricular global longitudinal strain (LVGLS), right ventricular global radial strain (RVGRS), right ventricular global circumferential strain (RVGCS), right ventricular global longitudinal strain (RVGLS), left ventricular end-diastolic volume index (LVEDVI), and left ventricular end-systolic volume index (LVESVI). Differences in clinical baseline data and CMR parameters among the 3 groups were tested. Univariate Cox regression analysis was performed, followed by multivariate Cox modeling of statistically significant factors. Receiver operating characteristic (ROC) analysis was conducted for the influencing factors identified in the multivariate Cox model, and Kaplan-Meier survival curves for survival time were plotted. Results:Significant differences were observed in biventricular strain parameters (LVGRS, LVGCS, LVGLS, RVGRS, RVGCS, RVGLS), LVESWS, LVEDVI, and LVESVI among the 3 groups (all P<0.05). Univariate and multivariate Cox regression analyses showed that RVGCS, age, and infarct size were independent influencing factors for HFpEF after myocardial infarction (all P<0.01), while LVESWS and LVGLS were independent influencing factors for HFrEF after myocardial infarction (all P<0.001). Further ROC analysis revealed that the areas under the curve (AUC) for RVGCS, infarct size, age, RVGCS combined with age, and RVGCS combined with age and infarct size in predicting HFpEF were 0.771, 0.607, 0.615, 0.793, and 0.805, respectively. The AUCs for LVESWS, LVGLS, and LVESWS combined with LVGLS in predicting HFrEF were 0.943, 0.925, and 0.971, respectively. Kaplan-Meier survival curves based on optimal cutoff values showed statistically significant differences in survival time between HFpEF and non-heart failure patients when grouped by RVGCS and age (all P<0.05), but no significant difference when grouped by infarct size ( P=0.400). Statistically significant differences in survival time were observed between HFrEF and non-heart failure patients when grouped by LVESWS and LVGLS (all P<0.001). Conclusion:CMR-derived LVESWS and biventricular strain parameters demonstrate significant predictive value for different types of heart failure after myocardial infarction and can serve as valuable imaging markers for heart failure management and risk stratification in patients with myocardial infarction.
10.Value of platelet protein kinase C epsilon in risk stratification of acute chest pain in elderly with normal troponin levels
Cuijun HAO ; Rui WANG ; Yang HONG ; Xiaoying LI ; Shaojie HAN ; Fangjiang LI
Chinese Journal of Geriatric Heart Brain and Vessel Diseases 2025;27(2):159-163
Objective To investigate the role of additional platelet protein kinase C epsilon(PKCε)assay in risk stratification and additional diagnostic testing in elderly patients with acute chest pain and normal hypersensitive cardiac troponin I(hs-cTnI)level.Methods A prospective trial was conducted on 220 consecutive elderly patients with angina-like acute chest pain and normal hs-cTnI level in our hospital from April 2022 to April 2023.According to whether major adverse cardiovascular events(MACE)occurred during the 1-year follow-up period,they were assigned in-to MACE group(24 cases)and non-MACE group(196 cases).Their general clinical data and platelet PKCε expression were compared between the two groups.Kaplan-Meier survival curve was plotted to analyzed the event-free time between the platelet PKCε expression<2.05%group and the≥2.05%group.Multivariate Cox regression analysis was used to investigate the impact of baseline data on the occurrence of MACE during the 1-year follow-up period.Decision tree model was employed to analyze the influencing factors for MACE.Results During 1-year follow-up,24 patients(10.91%)developed MACE.The platelet PKCε expression was significantly higher in the MACE group than the non-MACE group[9.25%(6.60%,15.25%)vs 1.70%(0.80%,3.25%),Z=-7.596,P<0.01].Kaplan-Meier survival curve analysis showed that the patients in the PKCε<2.05%group had no events within 360 d,while those in the ≥2.05%group had an average event-free time of 297.13±12.77 d,with a statistical difference(log rank Chi-square=27.051,P=0.000).Multivariate Cox regression analysis showed that highly suspicious angina,hs-cTnI and platelet PKCε were independent risk factors for MACE within 1 year of follow-up(HR=3.011,95%CI:1.049-8.641,P=0.040;HR=1.216,95%CI:1.044-1.418,P=0.012;HR=1.160,95%CI:1.104-1.218,P=0.000).In the decision tree model,the 1-year incidence of MACE was notably higher in the platelet PKCε≥2.05%group than the<2.05%group(P=0.011).The probability of severe coronary artery stenosis or myocardial ischemia in the platelet PKCε≥2.05%group was remarkably higher than the<2.05%group(P=0.006).Conclusion In elderly patients suffering from acute chest pain with normal hs-cTnI level,additional platelet PKCε detection appears to have a good prognostic gain.


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