1.Dosimetric impact of deep inspiration breath-hold technique in postoperative radiotherapy for left-sided breast cancer
Duoduo WANG ; Han GAO ; Pudong QIAN ; Yutao LI ; Yingxin LIU ; Zixuan NI ; Yatian LIU
Chinese Journal of Radiation Oncology 2025;34(4):340-346
Objective:To investigate the dosimetric advantages of deep inspiration breath-hold (DIBH) technique in postoperative radiotherapy for left-sided breast cancer.Methods:A prospective study was conducted on patients requiring adjuvant radiotherapy after left-sided breast cancer surgery at Jiangsu Cancer Hospital from January 2018 to May 2023. CT simulation images were acquired under both free breathing (FB) and DIBH respiratory modes. Planning target volumes (PTV) and organs at risk (OAR) were delineated, and dosimetric parameters were compared between the two respiratory modes. Additionally, patients were grouped into subgroups [internal mammary lymph node irradiation (IMNI) vs. non-IMNI, breast-conserving surgery (BCS) followed by radiotherapy vs. modified radical mastectomy (MRM) followed by radiotherapy], and dosimetric differences among subgroups for both breathing modes were compared. The Velocity system was used to measure the minimum distances from the heart and left anterior descending coronary artery (LAD) to the PTV surface on CT images. These distances were defined as the heart-to-PTV and LAD-to-PTV distances. Pearson correlation analysis was performed to assess the relationships between heart D max and LAD D max, heart-to-PTV distance and heart D mean, and LAD-to-PTV distance and LAD D max under both respiratory modes. Results:A total of 132 patients were included. Compared to the FB, DIBH showed no significant difference in target dose distribution, but significantly reduced dose to OAR. Specifically, the heart D mean and D max decreased by 1.8 Gy and 8.1 Gy, respectively, and the LAD D max decreased by 7.9 Gy, and the affected lung V 5 Gy and V 20 Gy were reduced by 6.4% and 2.5%, respectively (all P<0.05). All subgroups benefited from DIBH, with greater decrease of dose to OAR in the IMNI subgroup (compared with the non-IMNI subgroup) and the subgroup of MRM followed by radiotherapy (compared with the BCS followed by radiotherapy group). Under both FB and DIBH modes, heart D max and LAD D max showed linear correlations ( r=0.62 and 0.84, respectively; both P<0.001), heart-to-PTV distance correlated with heart D mean ( r=-0.61 and -0.67, respectively; both P<0.001), and LAD-to-PTV distance correlated with LAD D max ( r=-0.58 and -0.63, respectively; both P<0.001). Conclusions:The DIBH technique can significantly reduce dose to the heart, LAD, and lungs in patients undergoing postoperative radiotherapy for left-sided breast cancer without compromising target dose. Patients receiving IMNI after left-sided breast cancer surgery benefit more from the DIBH technique.
2.Expert consensus on prognostic evaluation of cochlear implantation in hereditary hearing loss.
Xinyu SHI ; Xianbao CAO ; Renjie CHAI ; Suijun CHEN ; Juan FENG ; Ningyu FENG ; Xia GAO ; Lulu GUO ; Yuhe LIU ; Ling LU ; Lingyun MEI ; Xiaoyun QIAN ; Dongdong REN ; Haibo SHI ; Duoduo TAO ; Qin WANG ; Zhaoyan WANG ; Shuo WANG ; Wei WANG ; Ming XIA ; Hao XIONG ; Baicheng XU ; Kai XU ; Lei XU ; Hua YANG ; Jun YANG ; Pingli YANG ; Wei YUAN ; Dingjun ZHA ; Chunming ZHANG ; Hongzheng ZHANG ; Juan ZHANG ; Tianhong ZHANG ; Wenqi ZUO ; Wenyan LI ; Yongyi YUAN ; Jie ZHANG ; Yu ZHAO ; Fang ZHENG ; Yu SUN
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2025;39(9):798-808
Hearing loss is the most prevalent disabling disease. Cochlear implantation(CI) serves as the primary intervention for severe to profound hearing loss. This consensus systematically explores the value of genetic diagnosis in the pre-operative assessment and efficacy prognosis for CI. Drawing upon domestic and international research and clinical experience, it proposes an evidence-based medicine three-tiered prognostic classification system(Favorable, Marginal, Poor). The consensus focuses on common hereditary non-syndromic hearing loss(such as that caused by mutations in genes like GJB2, SLC26A4, OTOF, LOXHD1) and syndromic hereditary hearing loss(such as Jervell & Lange-Nielsen syndrome and Waardenburg syndrome), which are closely associated with congenital hearing loss, analyzing the impact of their pathological mechanisms on CI outcomes. The consensus provides recommendations based on multiple round of expert discussion and voting. It emphasizes that genetic diagnosis can optimize patient selection, predict prognosis, guide post-operative rehabilitation, offer stratified management strategies for patients with different genotypes, and advance the application of precision medicine in the field of CI.
Humans
;
Cochlear Implantation
;
Prognosis
;
Hearing Loss/surgery*
;
Consensus
;
Connexin 26
;
Mutation
;
Sulfate Transporters
;
Connexins/genetics*
3.Biomechanical analysis of three kinds of rigid internal fixation methods for condylar head fractures.
Junhui SUN ; Duoduo LAN ; Dong WANG ; Yao XU ; Zeyu WANG ; Chenchen ZHANG ; Kai ZHANG ; Tao XU
West China Journal of Stomatology 2025;43(1):126-132
OBJECTIVES:
This study aims to analyze the biomechanics of three kinds of rigid internal fixation methods for condylar head fractures.
METHODS:
A three dimensional finite element model of the normal mandible was constructed. It was then used to prepare condylar head fracture finite element model and three kinds of rigid internal fixation finite element model (unilateral tension screw, bilateral tension screw, tension screw+titanium plate). The mechanical characteristics and changes of the mandible condyle under the same mechanical conditions were compared among the three different rigid internal fixation methods.
RESULTS:
The maximum equivalent stress and displacement of the non-free end of condyle under the rigid internal fixation method of unilateral tension screw were 71.03 MPa and 4.72 mm, respectively. The maximum equivalent stress and displacement of the free end of condyle were 78.45 MPa and 4.50 mm, respectively. The maximum stress of fracture suture was 3.27 MPa. The maximum equivalent stress and displacement of the non-free end of condyle under the rigid internal fixation method of bilateral tension screw were 70.52 MPa and 4.00 mm, respectively. The maximum equivalent stress and displacement of the free end of condyle were 72.49 MPa and 3.85 mm, respectively. The maximum stress of fracture suture was 2.33 MPa. The maximum equivalent stress and maximum displacement of the non-free end of condyle under the rigid internal fixation method of tension screw+titanium plate were 67.26 MPa and 2.66 mm, respectively. The maximum equivalent stress and maximum displacement of the free end of condyle were 69.66 MPa and 2.50 mm, respectively. The maximum stress of fracture suture was 2.18 MPa.
CONCLUSIONS
The tension screw+titanium plate rigid internal fixation method is the most conducive to biomechanical distribution for condylar head fractures.
Fracture Fixation, Internal/instrumentation*
;
Mandibular Condyle/surgery*
;
Biomechanical Phenomena
;
Bone Screws
;
Finite Element Analysis
;
Humans
;
Mandibular Fractures/surgery*
;
Bone Plates
;
Titanium
;
Stress, Mechanical
4.Severe COVID-19 and inactivated vaccine in diabetic patients with SARS-CoV-2 infection.
Yaling YANG ; Feng WEI ; Duoduo QU ; Xinyue XU ; Chenwei WU ; Lihua ZHOU ; Jia LIU ; Qin ZHU ; Chunhong WANG ; Weili YAN ; Xiaolong ZHAO
Chinese Medical Journal 2025;138(10):1257-1259
5.Comparison of the efficacy of acupuncture-related therapies in treating postoperative pain in patients with osteoporotic vertebral compression fractures after percutaneous kyphoplasty or percutaneous vertebroplasty: A network meta-analysis
Jiaojiao Fan ; Yushan Gao ; Yang Xiong ; Duoduo Li ; Luchun Xu ; Guozheng Jiang ; Guanlong Wang ; Xing Yu ; Yongdong Yang
Journal of Traditional Chinese Medical Sciences 2025;2025(4):470-482
ObjectiveTo evaluate the clinical efficacy of different acupuncture-related therapies in treating postoperative pain in patients with osteoporotic vertebral compression fractures (OVCFs) after percutaneous kyphoplasty (PKP) or percutaneous vertebroplasty (PVP) using a network meta-analysis.MethodsA systematic search was conducted in PubMed, Cochrane Library, Embase, Web of Science, China National Knowledge Infrastructure, Wanfang Database, Chinese Scientific Journal Database, and Chinese Biomedical Literature Database (SinoMed) from their inception to January 15, 2025. Outcome measures included the Visual Analog Scale (VAS) score, Oswestry Disability Index (ODI) score, and overall efficacy rate. Literature screening, data extraction, and risk-of-bias assessment were independently performed by two researchers. Data analysis was conducted using Stata 17.0 software.ResultsA total of 35 randomized controlled trials involving 2860 patients were included. The data analysis revealed that, in terms of improving VAS and ODI scores, the top three effective therapies were Fu's subcutaneous needling, wrist-ankle acupuncture, and acupotomy. For the overall efficacy rates in pain treatment, the top three therapies were wrist-ankle acupuncture, warm acupuncture and moxibustion, and Fu's subcutaneous needling. Based on the combined results across the three outcome measures, Fu's subcutaneous needling was found to be the most effective in relieving pain and improving lumbar function.ConclusionFu's subcutaneous needling, wrist-ankle acupuncture, warm acupuncture and moxibustion, and acupotomy were all effective in treating postoperative pain post-PKP/PVP and improving lumbar function. However, further high-quality, large-sample studies are required to confirm these findings.
6.Dosimetric impact of deep inspiration breath-hold technique in postoperative radiotherapy for left-sided breast cancer
Duoduo WANG ; Han GAO ; Pudong QIAN ; Yutao LI ; Yingxin LIU ; Zixuan NI ; Yatian LIU
Chinese Journal of Radiation Oncology 2025;34(4):340-346
Objective:To investigate the dosimetric advantages of deep inspiration breath-hold (DIBH) technique in postoperative radiotherapy for left-sided breast cancer.Methods:A prospective study was conducted on patients requiring adjuvant radiotherapy after left-sided breast cancer surgery at Jiangsu Cancer Hospital from January 2018 to May 2023. CT simulation images were acquired under both free breathing (FB) and DIBH respiratory modes. Planning target volumes (PTV) and organs at risk (OAR) were delineated, and dosimetric parameters were compared between the two respiratory modes. Additionally, patients were grouped into subgroups [internal mammary lymph node irradiation (IMNI) vs. non-IMNI, breast-conserving surgery (BCS) followed by radiotherapy vs. modified radical mastectomy (MRM) followed by radiotherapy], and dosimetric differences among subgroups for both breathing modes were compared. The Velocity system was used to measure the minimum distances from the heart and left anterior descending coronary artery (LAD) to the PTV surface on CT images. These distances were defined as the heart-to-PTV and LAD-to-PTV distances. Pearson correlation analysis was performed to assess the relationships between heart D max and LAD D max, heart-to-PTV distance and heart D mean, and LAD-to-PTV distance and LAD D max under both respiratory modes. Results:A total of 132 patients were included. Compared to the FB, DIBH showed no significant difference in target dose distribution, but significantly reduced dose to OAR. Specifically, the heart D mean and D max decreased by 1.8 Gy and 8.1 Gy, respectively, and the LAD D max decreased by 7.9 Gy, and the affected lung V 5 Gy and V 20 Gy were reduced by 6.4% and 2.5%, respectively (all P<0.05). All subgroups benefited from DIBH, with greater decrease of dose to OAR in the IMNI subgroup (compared with the non-IMNI subgroup) and the subgroup of MRM followed by radiotherapy (compared with the BCS followed by radiotherapy group). Under both FB and DIBH modes, heart D max and LAD D max showed linear correlations ( r=0.62 and 0.84, respectively; both P<0.001), heart-to-PTV distance correlated with heart D mean ( r=-0.61 and -0.67, respectively; both P<0.001), and LAD-to-PTV distance correlated with LAD D max ( r=-0.58 and -0.63, respectively; both P<0.001). Conclusions:The DIBH technique can significantly reduce dose to the heart, LAD, and lungs in patients undergoing postoperative radiotherapy for left-sided breast cancer without compromising target dose. Patients receiving IMNI after left-sided breast cancer surgery benefit more from the DIBH technique.
7.Research progress on running-related joint injuries and rehabilitation treatment
Yumin LI ; Jie LYU ; Peipei HAN ; Ruiqin WANG ; Haoran XU ; Panjing GUO ; Duoduo WANG
International Journal of Biomedical Engineering 2024;47(1):93-98
Under the backdrop of the "Healthy China 2030" strategy, running has become the most common form of exercise. Fitness running is a kind of endurance aerobic exercise. Compared with swimming, aerobics, and other sports with high activity and intensity, the risk of lower limb fatigue injury during fitness running is higher. In this review paper, the risk factors for running-related injuries were summarized by consulting and analyzing the database and focuses on discussing and analyzing the impact of running on joints. The results showed that hip adduction, knee bending, and ankle joint abnormalities are the three joint-related factors that cause the main injuries during running. Four rehabilitation intervention methods for running-related injuries were proposed, that can guide patients to generate personalized rehabilitation treatment plans through training.
8.Establishment and Preliminary Application of Competence Framework for Clinical Teaching Management Positions Based on Nominal Group Technique
Yizhen WEI ; Duoduo ZHANG ; Qiang WANG ; Xiao CHANG ; Meini CHEN ; Linzhi LUO
Medical Journal of Peking Union Medical College Hospital 2024;15(3):718-723
To develop a framework for clinical teaching management (CTM) position competencies, and to initiate the preliminary application of this framework. Key groups comprising clinical teaching coordinators, clinical trainees, teaching administrators, and the educational reform practice and research group at Peking Union Medical College Hospital (PUMCH) were selected as research samples. The nominal group technique (NGT) was employed to generate, integrate, and establish a framework, as well as to describe CTM competencies. Additionally, rankings of competency importance were gathered. The competency framework was then utilized to conduct a self-assessment of CTM through a questionnaire survey, scored using the Likert method (ranging from 1 to 5 points), followed by an analysis of the results. The initial NGT discussion round among key groups led to a consensus on the primary CTM competency framework, which included professionalism, coordinating ability, teaching ability, and teaching innovation. Divergent views emerged regarding the connotations and importance rankings of each dimension. Following the second NGT discussion by the educational reform practice and research group, a self-assessment was carried out using the CTM competency framework. This second discussion round resulted in a competency framework for clinical teaching management positions that encompassed seven dimensions: medical knowledge and skills, learner-centeredness, communication and cooperation, professionalism and role modeling, reflection and improvement, teaching theory and methods, and teaching coordination and management. The self-assessment revealed that, aside from the dimensions of teaching coordination and management and teaching theory and methods, the scores for the other five dimensions were above 80% (4 points). A preliminary CTM competency framework has been established and applied. The results provide significant insights for guidiny the enhancement and evaluation of competencies.However, specific items within this framework require further validation and refinement through practical application.
9.Application strategy of the"You Gu Wu Yun"theory to reduce the toxicity of traditional Chinese medicine from the perspective of"traditional Chinese medicine state"
Shijie QIAO ; Zongchen WEI ; Ziyao CAI ; Chao FU ; Shunan LI ; Zhanglin WANG ; Liqing HUANG ; Kang TONG ; Wen TANG ; Zhibin WANG ; Hairui HAN ; Duoduo LIN ; Shaodong ZHANG ; Huangwei LEI ; Yang WANG ; Candong LI
Journal of Beijing University of Traditional Chinese Medicine 2024;47(11):1506-1511
Based on the"You Gu Wu Yun"theory in traditional Chinese medicine(TCM),this paper believes that"Gu"in"You Gu Wu Yun"is extended to"state"from the perspective of"TCM state".In order to avoid the adverse reactions of TCM,the macro,meso,and micro three views should be used together,and macro,meso,and micro parameters should be integrated.We should also carefully identify the physiological characteristics,pathological characteristics,constitution,syndrome,and disease of human body by combining qualitative and quantitative method,highlighting the relationship between the prescription and the"state".The correspondence between prescription and the"state"will reduce the risk of adverse reactions of TCM.In this paper,we hope to focus on the guiding role of the"You Gu Wu Yun"theory in TCM research,to give full play to the characteristics and advantages of TCM,and to dialectically treat the role of TCM.
10.The Application of “Diagnosing Diseases with Sinews” in Obstinate Facial Paralysis
Yuyan WANG ; Xiyou WANG ; Duoduo LI ; Eryang LIU ; Baolin JIA ; Changxin LIU ; Yuanyuan GONG
Journal of Traditional Chinese Medicine 2024;65(6):652-656
The theory of “diagnosing diseases with sinews” means that through the diagnosis and examination of the channel sinews at the site of the lesion, the surplus and deficit state of qi and blood in the channel sinews, vessles and channels, and the degree of damage to the organism caused by the disease and evils, can be determined, forming the three elements (the nature of the disease, the location of the disease, and the disease tendency) of the disease diagnosis can be closely integrated to form the trinity of diagnostic modes, which is “examining the disease nature by sinews, identifying the pattern by sinews, and determining the tendency by sinews”. For intractable facial paralysis, the method of “diagnosing diseases with sinews” can be adopted, in which the morphological changes of the channel sinews are judged through diagnosis by observation, the traditional Chinese patterns are identified through diagnosis by palpation, and the points of meridian tendons and the circulation of tendon and treatment lines are determined through diagnosis by circulation. The “diagnosing diseases with sinews” not only helps to accurately determine the disease condition, patterns and development trend, but also helps to adopt targeted treatment for the disease and prevent the disease from spreading, and providing ideas and methods for the clinical diagnosis and treatment of intractable facial paralysis.


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