1.Immunomodulatory effect of short-chain fatty acids in hepatic encephalopathy and its potential diagnostic value
Weiyu CHEN ; Dewen MAO ; Han WANG ; Yang DU ; Wenqian FENG ; Lei FU ; Chun YAO
Journal of Clinical Hepatology 2025;41(5):954-962
Hepatic encephalopathy (HE) is a common complication of severe liver disease in the end stage, and it is urgently needed to improve the rate of effective treatment and clarify the pathogenesis of HE. The liver is a crucial hub for immune regulation, and disruption of immune homeostasis is a key factor in the pathological mechanisms of HE. As the main metabolites of intestinal flora, short-chain fatty acids (SCFAs) play a vital role in the biological processes of both innate and adaptive immunity and can regulate the proliferation and differentiation of immune cells maintain the homeostasis of intestinal microenvironment and the integrity of barrier function. Studies have shown that SCFAs participate in bidirectional and dynamic interactions with the liver-gut-brain axis through immunomodulatory pathways, thereby playing an important role in the diagnosis, treatment, and prognostic evaluation of HE. Starting from the immunoregulatory effect of SCFAs, this article summarizes and analyzes the crosstalk relationship between SCFAs and the liver-gut-brain axis and the significance of SCFAs in the diagnosis and treatment of HE, in order to provide new ideas for optimizing clinical prevention and treatment strategies.
2.Ethical exploration of clinical research empowered by remote collection of digital health technology
Zhonglin CHEN ; Xingyi LI ; Yu FENG ; Huihui HAN ; Yao YAO ; Mengjie YANG ; Xumin HOU
Chinese Medical Ethics 2024;37(6):693-698
In recent years,with the gradual maturity of achievable remote collection of digital health technology,more and more clinical research have applied this technology to improve the quality of data collection and reduce the burden on subjects.However,its technological characteristics of detachment from the diagnostic and treatment environment and real-time transmission of sensitive information also pose corresponding risks to the protection of subjects'rights and interests and data standardization management,among which personal information protection and data control permissions are more prominent issues.Based on risk analysis and regulatory review,this paper explored the responsibilities of multiple parties,including the sponsors,researchers,clinical trial institutions,and ethics committee,as well as proposed five elements of special concern for ethical review,with a view to providing a reference for promoting the standardized development of digital health technology in clinical research.
3.Analysis on the Distribution Pattern of TCM Syndrome Types in Primary Ovarian Insufficiency Sleep Disorders
Xiaoling FENG ; Ruiting YAO ; Xinyu HAN ; Ziqian JIA
Journal of Nanjing University of Traditional Chinese Medicine 2024;40(1):83-89
OBJECTIVE To explore the distribution pattern of traditional Chinese medicine(TCM)syndrome types of primary o-varian insufficiency(POI)sleep disorders and the differences in the distribution of sleep quality index among different syndrome types,in order to provide a basis for syndrome differentiation treatment and prevention of POI associated with sleep disorders.METHODS 600 POI patients who met the inclusion criteria were collected for epidemiological investigation,and 405 patients who met the diagnosis of sleep disorders were selected as the research group.The patients'general information,TCM four diagnosis and sex hormone level in-formation were collected,and the Pittsburgh sleep quality index(PSQI)scale was used to evaluate patients'sleep conditions,and ana-lyze the characteristics and influencing factors of TCM syndrome types of POI associated with sleep disorders.RESULTS The main TCM syndrome types of POI accompanied by sleep disorders were heart and kidney disharmony syndrome(41.98%),spleen and kid-ney yang deficiency syndrome(22.22%),kidney deficiency and liver stagnation syndrome(20.99%),and kidney deficiency and blood stasis syndrome(14.81%).The heart and kidney disharmony syndrome had the longest sleep latency and shortest sleep time,relied more on hypnotic drugs,and had the highest PSQI total score;the heart and kidney disharmony syndrome and kidney deficiency and liver stagnation syndrome had the worst sleep quality;the spleen kidney yang deficiency syndrome had the highest daytime dysfunc-tion score.There was no significant difference in FSH levels among different TCM syndrome types;the distribution of E2 values from low to high was:heart and kidney disharmony syndrome,kidney deficiency and liver stagnation syndrome,spleen and kidney yang de-ficiency syndrome,and kidney deficiency and blood stasis syndrome,and there were significant differences among multiple groups(P<0.05).CONCLUSION The main TCM syndrome types of patients with POI and sleep disorders are heart and kidney disharmony syn-drome,spleen and kidney yang deficiency syndrome,kidney deficiency and liver stagnation syndrome,and kidney deficiency and blood stasis syndrome.Among them,the most common TCM syndrome type with the worst sleep quality is heart and kidney disharmony syn-drome,which may be closely related to estrogen E2 levels.
4.Research progress in low-dose radiotherapy for osteoarthropathy
Yang FENG ; Zengwei HAN ; Yuan YAO ; Dong LI
Chinese Journal of Radiation Oncology 2024;33(3):269-274
Osteoarthropathy is a common chronic disease among middle-aged and elderly populations, characterized by joint pain, limited mobility, and even disability in severe cases. Treatment methods include weight control, functional exercise, local or systemic medication use, and ultimately joint replacement surgery. However, patients often experience ineffective drug treatment or inability to tolerate adverse drug reactions, as well as inability to tolerate joint replacement surgery. Multiple studies have shown that low-dose radiotherapy can alleviate joint pain and limited mobility by regulating multiple stages of the inflammatory process. In addition, the risk of secondary malignant tumors is extremely low, with rare acute and chronic adverse reactions. However, there is still some controversy regarding the optimal segmentation method for radiotherapy in clinical applications, which remains to be elucidated by more prospective studies. Low-dose radiotherapy for osteoarthropathy has been rarely studied in China. This non-invasive, safe, and effective treatment is expected to provide more treatment options for Chinese patients with osteoarthritis.
5.Association of copy number variation in X chromosome-linked PNPLA4 with heterotaxy and congenital heart disease
Han GAO ; Xianghui HUANG ; Weicheng CHEN ; Zhiyu FENG ; Zhengshan ZHAO ; Ping LI ; Chaozhong TAN ; Jinxin WANG ; Quannan ZHUANG ; Yuan GAO ; Shaojie MIN ; Qinyu YAO ; Maoxiang QIAN ; Xiaojing MA ; Feizhen WU ; Weili YAN ; Wei SHENG ; Guoying HUANG
Chinese Medical Journal 2024;137(15):1823-1834
Background::Heterotaxy (HTX) is a thoracoabdominal organ anomaly syndrome and commonly accompanied by congenital heart disease (CHD). The aim of this study was to analyze rare copy number variations (CNVs) in a HTX/CHD cohort and to examine the potential mechanisms contributing to HTX/CHD.Methods::Chromosome microarray analysis was used to identify rare CNVs in a cohort of 120 unrelated HTX/CHD patients, and available samples from parents were used to confirm the inheritance pattern. Potential candidate genes in CNVs region were prioritized via the DECIPHER database, and PNPLA4 was identified as the leading candidate gene. To validate, we generated PNPLA4-overexpressing human induced pluripotent stem cell lines as well as pnpla4-overexpressing zebrafish model, followed by a series of transcriptomic, biochemical and cellular analyses. Results::Seventeen rare CNVs were identified in 15 of the 120 HTX/CHD patients (12.5%). Xp22.31 duplication was one of the inherited CNVs identified in this HTX/CHD cohort, and PNPLA4 in the Xp22.31 was a candidate gene associated with HTX/CHD. PNPLA4 is expressed in the lateral plate mesoderm, which is known to be critical for left/right embryonic patterning as well as cardiomyocyte differentiation, and in the neural crest cell lineage. Through a series of in vivo and in vitro analyses at the molecular and cellular levels, we revealed that the biological function of PNPLA4 is importantly involved in the primary cilia formation and function via its regulation of energy metabolism and mitochondria-mediated ATP production. Conclusions::Our findings demonstrated a significant association between CNVs and HTX/CHD. Our data strongly suggested that an increased genetic dose of PNPLA4 due to Xp22.31 duplication is a disease-causing risk factor for HTX/CHD.
6.Incidence, mortality, and disability-adjusted life years of female breast cancer in China, 2022
Kexin SUN ; Bailin ZHANG ; Shaoyuan LEI ; Rongshou ZHENG ; Xin LIANG ; Li LI ; Xiaolong FENG ; Siwei ZHANG ; Hongmei ZENG ; Yifei YAO ; Peiqing MA ; Shaoming WANG ; Ru CHEN ; Bingfeng HAN ; Wenqiang WEI ; Jie HE
Chinese Medical Journal 2024;137(20):2429-2436
Background::Breast cancer is ranked among the most prevalent malignancies in the Chinese female population. However, comprehensive reports detailing the latest epidemiological data and attributable disease burden have not been extensively documented.Methods::In 2018, high-quality cancer surveillance data were recorded in 700 population-based cancer registries in China. We extracted data on female breast cancers (International Classification of Diseases, Tenth Revision [ICD-10]: C50) and estimated the incidence and mortality in 2022 according to the baseline data and corresponding trends from 2010 to 2018. Pathological types were classified according to the ICD for Oncology, 3rd Edition codes. Disability-adjusted life years (DALYs) were calculated as the sum of the years of life lost (YLLs) and years lived with disability (YLDs).Results::In 2022, approximately 357,200 new female breast cancer cases and 75,000 deaths occurred in China, accounting for 15.59% and 7.94% of total new cancer cases and deaths, respectively. The age-standardized incidence rate (ASIR) was 33.04 per 100,000. When analyzed by pathological type, the ASIRs for papillary neoplasms, invasive breast carcinoma, rare and salivary gland-type tumors, and other types were 1.13, 29.79, 0.24, and 1.88 per 100,000, respectively. The age-standardized mortality rate (ASMR) was 6.10 per 100,000. A total of 2,628,000 DALYs were found to be attributable to female breast cancer in China, comprising 2,278,300 YLLs and 349,700 YLDs. The ASIR, ASMR, and age-standardized rate (ASR) for DALYs in urban areas were consistently higher than those in rural areas. We observed a four-fold increase in the ASIR and ASR for DALYs and an eight-fold increase in the ASMR among females over 55 years compared with those aged under 55 years.Conclusion::These data provide invaluable insights into the latest epidemiology of female breast cancer in China and highlight the urgency for disease prevention and control strategy formulation.
7.Exploring the Effect of Yuye Decoction on the Prevention and Treatment of Diabetic Nephropathy Based on Intestinal Flora and Intestinal Mucosal Barrier
Feng GUO ; Rui HAO ; Pengde CHEN ; Xue HAN ; Lan YAO
World Science and Technology-Modernization of Traditional Chinese Medicine 2024;26(5):1308-1319
Objective To investigate the effects of Yuye Decoction(YYD)on diabetic nephropathy(DN)rats with Qi and Yin deficiency based on intestinal flora and intestinal mucosal barrier.Methods The content of the active ingredients puerarin,mangiferin and calycosin 7-O-β-D-glucopyranoside in YYD freeze dried powder was tested by HPLC to control the quality of YYD freeze dried powder.Forty-five Wistar rats were randomly divided into normal group(NC group),Qi-Yin deficiency DN group(M group)and YYD administration group(YYD group;5.03 g·kg-1)according to body weight.Intraperitoneal injections of streptozotocin(STZ)at a dose of 25 mg·kg-1 were administered,accompanied by oral gavage of adix Aconiti Lateralis,Citri Reticulatae Pericarpium Viride and Aurantii Fructus for 8 weeks to establish a Qi-Yin deficiency DN model in rats.During this period,rats in the YYD group were also treated with YYD extract.Weekly body weight and blood glucose levels were monitored for each group,along with observations of physical signs,food and water consumption,swimming time,and urine output in the rats.After 8 weeks,serum levels of cholesterol(TC),triglycerides(TG),low-density lipoprotein(LDL-C),high-density lipoprotein(HDL-C),serum creatinine(SCr)and urinary nitrogen(BUN)were analyzed in rats using automatic biochemical analysis.Hematoxylin-eosin staining(HE)was used to observe the pathological changes in the kidney and colon tissues.Enzyme-linked immunosorbent assay(ELISA)was used to measure urine protein concentration and serum levels of IgG,IgM,cAMP and cGMP.16SrDNA sequencing was used to sequence faecal flora and some flora were validated by quantitative real-time fluorescence PCR(qRT-PCR).Western blot method was used to measure the levels of intestinal barrier proteins and inflammatory factor proteins.Results The yield of YYD freeze-dried powder was 27.36%and the content of the active ingredients in YYD was 0.3496 mg·g-1 for puerarin,0.1851 mg·g-1 for mangiferin and 0.0429 mg·g-1 for calycosin 7-O-β-D-glucopyranoside.The results of animal experiments indicated that compared with Qi and Yin deficiency DN rats,YYD significantly improved the symptoms of lethargy and fatigue,increased swimming time,reduced water intake and increased food intake;increased the abundance of Bacteroidetes and decreased the abundance of Firmicutes in feces.Furthermore,according to measurements of blood lipids,blood glucose,renal function,IgG and IgM,as well as cAMP and cGMP,which are the energy homeostasis factors of the body,YYD could significantly improve the levels of these indicators in the model rats.HE staining showed that compared with model rats,YYD remarkably alleviated kidney and colon damage;inhibited the expression of inflammatory factors TNF-α and IL-6 in the kidney and colon,and markedly raised the expression levels of renal and colonic kinetic proteins CHRM3 and 5-HT3A as well as mucosal barrier proteins Occludin and ZO-1.Conclusion YYD play a role in preventing and treating in rats with Qi-Yin deficiency DN,and this effect may be related to YYD correcting intestinal flora dysbiosis,delaying intestinal mucosal damage and improving renal and colonic inflammation in the model rats.
8.Chinese expert consensus on the diagnosis and treatment of traumatic supraorbital fissure syndrome (version 2024)
Junyu WANG ; Hai JIN ; Danfeng ZHANG ; Rutong YU ; Mingkun YU ; Yijie MA ; Yue MA ; Ning WANG ; Chunhong WANG ; Chunhui WANG ; Qing WANG ; Xinyu WANG ; Xinjun WANG ; Hengli TIAN ; Xinhua TIAN ; Yijun BAO ; Hua FENG ; Wa DA ; Liquan LYU ; Haijun REN ; Jinfang LIU ; Guodong LIU ; Chunhui LIU ; Junwen GUAN ; Rongcai JIANG ; Yiming LI ; Lihong LI ; Zhenxing LI ; Jinglian LI ; Jun YANG ; Chaohua YANG ; Xiao BU ; Xuehai WU ; Li BIE ; Binghui QIU ; Yongming ZHANG ; Qingjiu ZHANG ; Bo ZHANG ; Xiangtong ZHANG ; Rongbin CHEN ; Chao LIN ; Hu JIN ; Weiming ZHENG ; Mingliang ZHAO ; Liang ZHAO ; Rong HU ; Jixin DUAN ; Jiemin YAO ; Hechun XIA ; Ye GU ; Tao QIAN ; Suokai QIAN ; Tao XU ; Guoyi GAO ; Xiaoping TANG ; Qibing HUANG ; Rong FU ; Jun KANG ; Guobiao LIANG ; Kaiwei HAN ; Zhenmin HAN ; Shuo HAN ; Jun PU ; Lijun HENG ; Junji WEI ; Lijun HOU
Chinese Journal of Trauma 2024;40(5):385-396
Traumatic supraorbital fissure syndrome (TSOFS) is a symptom complex caused by nerve entrapment in the supraorbital fissure after skull base trauma. If the compressed cranial nerve in the supraorbital fissure is not decompressed surgically, ptosis, diplopia and eye movement disorder may exist for a long time and seriously affect the patients′ quality of life. Since its overall incidence is not high, it is not familiarized with the majority of neurosurgeons and some TSOFS may be complicated with skull base vascular injury. If the supraorbital fissure surgery is performed without treatment of vascular injury, it may cause massive hemorrhage, and disability and even life-threatening in severe cases. At present, there is no consensus or guideline on the diagnosis and treatment of TSOFS that can be referred to both domestically and internationally. To improve the understanding of TSOFS among clinical physicians and establish standardized diagnosis and treatment plans, the Skull Base Trauma Group of the Neurorepair Professional Committee of the Chinese Medical Doctor Association, Neurotrauma Group of the Neurosurgery Branch of the Chinese Medical Association, Neurotrauma Group of the Traumatology Branch of the Chinese Medical Association, and Editorial Committee of Chinese Journal of Trauma organized relevant experts to formulate Chinese expert consensus on the diagnosis and treatment of traumatic supraorbital fissure syndrome ( version 2024) based on evidence of evidence-based medicine and clinical experience of diagnosis and treatment. This consensus puts forward 12 recommendations on the diagnosis, classification, treatment, efficacy evaluation and follow-up of TSOFS, aiming to provide references for neurosurgeons from hospitals of all levels to standardize the diagnosis and treatment of TSOFS.
9.Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients (version 2024)
Yao LU ; Yang LI ; Leiying ZHANG ; Hao TANG ; Huidan JING ; Yaoli WANG ; Xiangzhi JIA ; Li BA ; Maohong BIAN ; Dan CAI ; Hui CAI ; Xiaohong CAI ; Zhanshan ZHA ; Bingyu CHEN ; Daqing CHEN ; Feng CHEN ; Guoan CHEN ; Haiming CHEN ; Jing CHEN ; Min CHEN ; Qing CHEN ; Shu CHEN ; Xi CHEN ; Jinfeng CHENG ; Xiaoling CHU ; Hongwang CUI ; Xin CUI ; Zhen DA ; Ying DAI ; Surong DENG ; Weiqun DONG ; Weimin FAN ; Ke FENG ; Danhui FU ; Yongshui FU ; Qi FU ; Xuemei FU ; Jia GAN ; Xinyu GAN ; Wei GAO ; Huaizheng GONG ; Rong GUI ; Geng GUO ; Ning HAN ; Yiwen HAO ; Wubing HE ; Qiang HONG ; Ruiqin HOU ; Wei HOU ; Jie HU ; Peiyang HU ; Xi HU ; Xiaoyu HU ; Guangbin HUANG ; Jie HUANG ; Xiangyan HUANG ; Yuanshuai HUANG ; Shouyong HUN ; Xuebing JIANG ; Ping JIN ; Dong LAI ; Aiping LE ; Hongmei LI ; Bijuan LI ; Cuiying LI ; Daihong LI ; Haihong LI ; He LI ; Hui LI ; Jianping LI ; Ning LI ; Xiying LI ; Xiangmin LI ; Xiaofei LI ; Xiaojuan LI ; Zhiqiang LI ; Zhongjun LI ; Zunyan LI ; Huaqin LIANG ; Xiaohua LIANG ; Dongfa LIAO ; Qun LIAO ; Yan LIAO ; Jiajin LIN ; Chunxia LIU ; Fenghua LIU ; Peixian LIU ; Tiemei LIU ; Xiaoxin LIU ; Zhiwei LIU ; Zhongdi LIU ; Hua LU ; Jianfeng LUAN ; Jianjun LUO ; Qun LUO ; Dingfeng LYU ; Qi LYU ; Xianping LYU ; Aijun MA ; Liqiang MA ; Shuxuan MA ; Xainjun MA ; Xiaogang MA ; Xiaoli MA ; Guoqing MAO ; Shijie MU ; Shaolin NIE ; Shujuan OUYANG ; Xilin OUYANG ; Chunqiu PAN ; Jian PAN ; Xiaohua PAN ; Lei PENG ; Tao PENG ; Baohua QIAN ; Shu QIAO ; Li QIN ; Ying REN ; Zhaoqi REN ; Ruiming RONG ; Changshan SU ; Mingwei SUN ; Wenwu SUN ; Zhenwei SUN ; Haiping TANG ; Xiaofeng TANG ; Changjiu TANG ; Cuihua TAO ; Zhibin TIAN ; Juan WANG ; Baoyan WANG ; Chunyan WANG ; Gefei WANG ; Haiyan WANG ; Hongjie WANG ; Peng WANG ; Pengli WANG ; Qiushi WANG ; Xiaoning WANG ; Xinhua WANG ; Xuefeng WANG ; Yong WANG ; Yongjun WANG ; Yuanjie WANG ; Zhihua WANG ; Shaojun WEI ; Yaming WEI ; Jianbo WEN ; Jun WEN ; Jiang WU ; Jufeng WU ; Aijun XIA ; Fei XIA ; Rong XIA ; Jue XIE ; Yanchao XING ; Yan XIONG ; Feng XU ; Yongzhu XU ; Yongan XU ; Yonghe YAN ; Beizhan YAN ; Jiang YANG ; Jiangcun YANG ; Jun YANG ; Xinwen YANG ; Yongyi YANG ; Chunyan YAO ; Mingliang YE ; Changlin YIN ; Ming YIN ; Wen YIN ; Lianling YU ; Shuhong YU ; Zebo YU ; Yigang YU ; Anyong YU ; Hong YUAN ; Yi YUAN ; Chan ZHANG ; Jinjun ZHANG ; Jun ZHANG ; Kai ZHANG ; Leibing ZHANG ; Quan ZHANG ; Rongjiang ZHANG ; Sanming ZHANG ; Shengji ZHANG ; Shuo ZHANG ; Wei ZHANG ; Weidong ZHANG ; Xi ZHANG ; Xingwen ZHANG ; Guixi ZHANG ; Xiaojun ZHANG ; Guoqing ZHAO ; Jianpeng ZHAO ; Shuming ZHAO ; Beibei ZHENG ; Shangen ZHENG ; Huayou ZHOU ; Jicheng ZHOU ; Lihong ZHOU ; Mou ZHOU ; Xiaoyu ZHOU ; Xuelian ZHOU ; Yuan ZHOU ; Zheng ZHOU ; Zuhuang ZHOU ; Haiyan ZHU ; Peiyuan ZHU ; Changju ZHU ; Lili ZHU ; Zhengguo WANG ; Jianxin JIANG ; Deqing WANG ; Jiongcai LAN ; Quanli WANG ; Yang YU ; Lianyang ZHANG ; Aiqing WEN
Chinese Journal of Trauma 2024;40(10):865-881
Patients with severe trauma require an extremely timely treatment and transfusion plays an irreplaceable role in the emergency treatment of such patients. An increasing number of evidence-based medicinal evidences and clinical practices suggest that patients with severe traumatic bleeding benefit from early transfusion of low-titer group O whole blood or hemostatic resuscitation with red blood cells, plasma and platelet of a balanced ratio. However, the current domestic mode of blood supply cannot fully meet the requirements of timely and effective blood transfusion for emergency treatment of patients with severe trauma in clinical practice. In order to solve the key problems in blood supply and blood transfusion strategies for emergency treatment of severe trauma, Branch of Clinical Transfusion Medicine of Chinese Medical Association, Group for Trauma Emergency Care and Multiple Injuries of Trauma Branch of Chinese Medical Association, Young Scholar Group of Disaster Medicine Branch of Chinese Medical Association organized domestic experts of blood transfusion medicine and trauma treatment to jointly formulate Chinese expert consensus on blood support mode and blood transfusion strategies for emergency treatment of severe trauma patients ( version 2024). Based on the evidence-based medical evidence and Delphi method of expert consultation and voting, 10 recommendations were put forward from two aspects of blood support mode and transfusion strategies, aiming to provide a reference for transfusion resuscitation in the emergency treatment of severe trauma and further improve the success rate of treatment of patients with severe trauma.
10.The application of endoscopic tubular musculoskeletal tumor surgery in the treatment of spinal tumors
Guowen WANG ; Yan ZHANG ; Yao XU ; Chengliang ZHAO ; Xiuxin HAN ; Chao ZHANG ; Jinyan FENG ; Yongheng LIU ; Yuxiang SHEN ; Zhe FENG
Chinese Journal of Orthopaedics 2024;44(20):1339-1348
Objective:To explore the effect and safety of endoscopic tubular musculoskeletal tumor surgery (ETMS) technology in spinal tumors.Methods:Clinical data were retrospectively collected from 18 spinal tumor patients who were treated with ETMS technology at Tianjin Medical University Cancer Institute and Hospital ( n=16) or the Affiliated Hospital of Qingdao University ( n=2) from November 2022 to December 2023. The total cohort included 11 males and 7 females, with the age at 60.3±8.6 years (range of 41-76). Two cases were diagnosed with benign tumors, four patients were diagnosed with spinal hematologic malignancies while other 12 cases were patients with spinal metastases. After localization under the C-arm X-ray machine, the spinal endoscopic channel is established using dilators. Soft tissue is dissected under endoscopic guidance to create an artificial cavity. Subsequently, the saline medium relied upon by the spinal endoscopic technique is removed, and posterior decompression and tumor curettage are performed using tubular techniques. Frankel grade classification and paraplegia index were used to evaluate the improvement of postoperative function and the VAS score was performed in pain scoring. The surgical complications and tumor evaluation were observed by postoperative outpatient and telephone follow-up. Results:The ETMS technology was successfully completed in all 18 patients with the mean operation time of 240.3±80.2 min. The median of intraoperative bleeding was 200.0(172.5, 350.0) ml and the mean postoperative drainage was 131.4±69.5 ml. The median value of postoperative hospitalization days was 6.0(4.0, 10.25) d. The paraplegia index decreased from 1.5(0, 3.0) preoperatively to 0(0, 1.25) postoperatively ( Z=-2.599, P=0.009). All the patients presented an improvement in Frankel grading after surgery except for one patient (downgrading from grade E to grade D). There was significantly difference in Frankel grading between preoperative and postoperative groups ( Z=2.812, P=0.005). The median value of preoperative VAS score was up to 5.5(4.0, 7.0) while the median value at postoperative, one month after surgery and three months after surgery were 1.5(1.0, 2.25), 1.0(0, 1.0) and 0(0, 1.0), respectively (χ 2=44.641, P<0.001). The 3-month postoperative VAS improvement rate was 91.2% (range 75%-100%). During a mean follow-up period of 7.6±6.2 months, none of the 18 patients presented surgical complications or tumor recurrence at surgical region. Only one patient died at 3.2 months after surgery until the last follow-up due to respiratory failure after lung tumor progression. The mean survival of the total cohort was up to 13.3 [95% CI (11.5, 15.0)] months. The 16 cases with spinal metastases or spinal hematological malignancies had a mean survival of 13.2 [95% CI (11.3, 15.0)] months. Conclusion:The ETMS technology presented good efficacy and safety in treatment of spinal tumors with low blood supply and with diameter less than 5cm.

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