1.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.
2.Effect of Doxycycline on Intrinsic Apoptosis of Myeloma Cell Line H929 and Its Mechanism.
Hai-Lu LI ; Xiao-Ming FEI ; Yu TANG ; Yuan-Lin YANG ; Li-Xia WANG ; Jia-Wei GENG
Journal of Experimental Hematology 2022;30(2):441-448
OBJECTIVE:
To investigate the mechanism of the in vitro toxicity of doxycycline to myeloma cell line H929 and also the possible pathway involved its toxicity.
METHODS:
Myeloma cell line H929 was treated with DOX, MEK inhibitor U0126 or RAS agonist ML-098, either alone or in combination. Then, the expression of p-MEK, caspase-3, caspase-9 and c-Jun in H929 were used to detected by Western blot; the cells proliferation and apoptosis were detected by CCK-8 assay and flow cytometry, respectively.
RESULTS:
DOX significantly increased the levels of cleaved caspase-3 and caspase-9, and down-regulated the level of p-MEK in H929 (P<0.05). MEK antagonist U0126 significantly increased the levels of cleaved caspase-3 and caspase-9, and down-regulated the level of p-MEK (P<0.05). After Dox combined with ML-098 treatment of H929 cells, the apoptosis rate of H929 cells was lower than that of DOX alone treatment group(P<0.05). Compared with DOX alone treatment group, the expressions of p-MEK and p-ERK1/2 in DOX+ML-098 combined treatment group were increased, and the levels of cleaved caspase-3,9 in H929 cells were decreased (P<0.05). The levels of c-Jun mRNA and protein increased in H929 when treated by DOX alone (P<0.05).
CONCLUSION
DOX can induce apoptosis of H929 via intrinsic apoptosis pathway, and MEK/ERK pathway and c-Jun possibly play a role in this process.
Apoptosis
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Caspase 3
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Caspase 9/pharmacology*
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Cell Line, Tumor
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Cell Proliferation
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Doxycycline/pharmacology*
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Humans
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Mitogen-Activated Protein Kinase Kinases/pharmacology*
;
Multiple Myeloma
3.Report standards for clinical comprehensive evaluation of Chinese patent medicine.
Qiang ZHANG ; Zhi-Fei WANG ; Yan-Ming XIE ; Yuan-Yuan LI ; Lian-Xin WANG ; Huan LIU ; Hong-Jiao GENG ; Xin CUI ; Fu-Mei LIU ; Chun-Quan SUN ; Rui-Li WEI ; Li-Dan ZHANG
China Journal of Chinese Materia Medica 2021;46(23):6062-6067
The clinical comprehensive evaluation of drugs is an important basis for the return of clinical value, decision-making of medical and health authorities, and allocation of medical resources. In July 2021, the National Health Commission issued the Guidelines for the Management of Clinical Comprehensive Evaluation of Drugs(trial version 2021), which required the evaluation to be implemented from the six dimensions(safety, effectiveness, economy, innovation, suitability, and accessibility), and made detailed arrangements for the clinical comprehensive evaluation of drugs. As Chinese patent medicine differs from chemical medicines in terms of effective components and action modes, the clinical comprehensive evaluation of Chinese patent medicine should highlight the characteristics and advantages of traditional Chinese medicine(TCM) on the basis of general requirements of comprehensive clinical evaluation of drugs. At present, in the clinical comprehensive evaluation of Chinese patent medicine, unified report standards have not yet been generated, resulting in the uneven quality of existing reports. To standardize the clinical comprehensive evaluation report of Chinese patent medicine and improve its quality, the editorial team, based on the relevant policy documents of clinical comprehensive evaluation of drugs, formulated the clinical comprehensive evaluation report standards for Chinese patent medicine in combination with the previous practice and expert opinions. The report standards, containing seven sections with 15 items determined, focus on data source, evaluation content, evidence synthesis, quality control, and evaluation results supported with detailed interpretations to help researchers better understand and apply the report standards for clinical comprehensive evaluation of Chinese patent medicine, improve the report quality, and provide references for the decision-making by the national medical management authorities.
China
;
Drugs, Chinese Herbal
;
Information Storage and Retrieval
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Medicine, Chinese Traditional
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Nonprescription Drugs
;
Quality Control
4.Clinical comprehensive evaluation of Naoxintong Capsules in treatment of cerebral infarction with Qi deficiency and blood stasis syndrome and coronary heart disease angina pectoris.
Hong-Jiao GENG ; Yan-Ming XIE ; Zhi-Fei WANG
China Journal of Chinese Materia Medica 2021;46(23):6087-6095
Through investigating the current research on the effect of Naoxintong Capsules in the treatment of cerebral infarction with Qi deficiency and blood stasis syndrome and coronary heart disease angina pectoris, this study conducted a clinical comprehensive evaluation in "6+1" dimensions [safety, effectiveness, economy, innovation, suitability, accessibility, and characteristics of traditional Chinese medicine(TCM)], so as to highlight the advantages and clinical value of Naoxintong Capsules. By combining qualitative and quantitative methods, we used the multi-criteria decision analysis(MCDA) model to measure each dimension, and the results thereby were divided into four grades of A, B, C, and D in high-to-low order. Through literature review and evaluation, the adverse effects of Naoxintong Capsules are mainly caused by the gastrointestinal system. Since the safety risk is controllable based on current research, the safety evaluation is grade B. The effectiveness of Naoxintong Capsules combined with conventional western medicine in the treatment of cerebral infarction with Qi deficiency and blood stasis syndrome and coronary heart disease angina pectoris is evaluated as grade A, as compared with conventional therapy alone. The economy of Naoxintong Capsules, compared with Tongxinluo Capsules, is assessed as grade B. According to literature reports, Naoxintong Capsules exhibits outstanding clinical innovation in optimizing the current anti-platelet therapy strategy for patients with coronary heart disease after percutaneous coronary intervention(PCI), and the innovation is class A. Given the capsule formulation is convenient for storage and transportation, and its usage is easy for patients to grasp and accept, the suitability is grade B. The accessibility is grade A considering the price level, availability, and affordability, and the characteristics of TCM are evaluated as grade A from the perspectives of theoretical characteristics and human experience. The results of the comprehensive drug evaluation showed that the clinical value of Naoxintong Capsules is class A for treating cerebral infarction with Qi deficiency and blood stasis syndrome and coronary heart disease angina pectoris. According to the Guidelines for the Management of Comprehensive Clinical Evaluation of Drugs(trial 2021 version) issued by the National Health Commission, relevant policy results for basic clinical drug management can be formulated directly by procedure.
Angina Pectoris
;
Capsules
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Cerebral Infarction/drug therapy*
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Coronary Disease/drug therapy*
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Drugs, Chinese Herbal
;
Humans
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Medicine, Chinese Traditional
;
Percutaneous Coronary Intervention
;
Qi
5.Expression of AXL enhances docetaxel-resistance of prostate cancer cells.
Jian-Zhong LIN ; Jia-Geng ZHU ; Hong-Fei WU ; Jiu-Ming LI ; Wei DE ; Zeng-Jun WANG
National Journal of Andrology 2017;23(4):302-308
Objective:
To explore the effect of the AXL expression on the chemosensitivity of prostate cancer PC-3 and DU145 cells to docetaxel and possible mechanisms.
METHODS:
Using Western blot, we examined the expressions of the AXL protein, p-AXL and Gas6 in the docetaxel-resistant PC-3 (PC-3-DR) and DU145 (DU145-DR) cells stimulated with gradually increased concentrations of docetaxel. We transfected the PC-3 and DU145 cells with negative NC ShRNA and AXL-ShRNA, respectively, which were confirmed to be effective, detected the proliferation, apoptosis and cycle distribution of the cells by CCK8, MTT and flow cytometry after treated with the AXL-inhibitor MP470 and/or docetaxel, and determined the expression of the ABCB1 protein in the PC-3-DR and DU145-DR cells after intervention with the AXL-inhibitor R428 and/or docetaxel.
RESULTS:
The expression of the AXL protein in the PC-3 and DU145 cells was significantly increased after docetaxel treatment (P <0.05). The expressions AXL and p-AXL were remarkably higher (P <0.05) while that of Gas6 markedly lower (P <0.05) in the PC-3 and DU145 than in the PC-3-DR and DU145-DR cells. The inhibitory effect of docetaxel on the proliferation and its enhancing effect on the apoptosis of the PC-3 and DU145 cells were significantly decreased at 48 hours after AXL transfection (P <0.05). MP470 obviously suppressed the growth and promoted the apoptosis of the PC-3-DR and DU145-DR cells, with a higher percentage of the cells in the G2/M phase when combined with docetaxel than used alone (P <0.05). R428 markedly reduced the expression of ABCB1 in the PC-3-DR and DU145-DR cells, even more significantly in combination with docetaxel than used alone (P <0.05).
CONCLUSIONS
The elevated expression of AXL enhances the docetaxel-resistance of PC-3 and DU145 prostate cancer cells and AXL intervention improves their chemosensitivity to docetaxel, which may be associated with the increased cell apoptosis in the G2/M phase and decreased expression of ABCB1.
ATP Binding Cassette Transporter, Subfamily B, Member 1
;
metabolism
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Antineoplastic Agents
;
pharmacology
;
Apoptosis
;
drug effects
;
Cell Count
;
Cell Cycle
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Cell Line, Tumor
;
Cell Proliferation
;
drug effects
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Docetaxel
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Drug Resistance, Neoplasm
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Humans
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Intercellular Signaling Peptides and Proteins
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metabolism
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Male
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Prostatic Neoplasms
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drug therapy
;
metabolism
;
pathology
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Proto-Oncogene Proteins
;
drug effects
;
genetics
;
metabolism
;
Pyrimidines
;
pharmacology
;
RNA, Small Interfering
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Receptor Protein-Tyrosine Kinases
;
drug effects
;
genetics
;
metabolism
;
Taxoids
;
pharmacology
6.Clinical feasibility and safety of a novel miniature mobile cardiac catheterization laboratory in diagnosis and treatment for coronary heart disease.
Ming LIANG ; Yaling HAN ; Geng WANG ; Tianming YAO ; Jingyang SUN ; Fei LI ; Kai XU ; Bin WANG ; Yi LI ; Jingjing RONG ; Xiaozeng WANG
Chinese Medical Journal 2014;127(6):1052-1056
BACKGROUNDThe lack of medical facilities causes delayed diagnosis and treatment of coronary heart disease in remote mountainous area and/or at disaster site. The miniature mobile cardiac catheterization laboratory was developed to be an intervention platform for coronary heart disease diagnosis and treatment by our team. Pre-clinical research indicated that the miniature mobile cardiac catheterization laboratory performed well in the rescue of critical cardiovascular diseases, even ST-segment elevation myocardial infarction. The present study aimed to evaluate the clinical safety and timeliness of the miniature mobile cardiac catheterization laboratory for emergent coronary interventional diagnosis and treatment.
METHODSX-ray radiation safety and disinfection efficacy in the miniature mobile cardiac catheterization laboratory were tested during working status. Coronary angiography and/or percutaneous coronary intervention were performed in remote mountainous areas on patients who were first diagnosed as having coronary heart disease by senior interventional cardiologists. The percutaneous coronary intervention procedures and results from patients in the miniature mobile cardiac catheterization laboratory were compared with patients who were treated in the hospital catheter lab.
RESULTSThe X-ray radiation dosages in the miniature mobile cardiac catheterization laboratory were 39.55 µGy/s, 247.4 µGy/h, 90.3 µGy/h and 39.4 µGy/h which were corresponded to 0 m, 1 m, 2 m and 3 m away from the tube central of the medium C-arm. And the radiation dosages used in the miniature mobile cardiac catheterization laboratory were less than the corresponding positions in the hospital catheter lab. The numbers of bacteria colonies in the miniature mobile cardiac catheterization laboratory in different environments range from (60 ± 8) cfu/m(3) to (120 ± 10) cfu/m(3) and met the demands of percutaneous coronary intervention. A total of 17 patients who received angiography in the miniature mobile cardiac catheterization laboratory, eight received percutaneous coronary intervention. The operations were all successfully accomplished without intraoperative and postoperative complications. The average angiography and percutaneous coronary intervention times were 35 ± 9 minutes and 55 ± 11 minutes, respectively. There was no significant difference in immediate percutaneous coronary intervention results between the miniature mobile cardiac catheterization laboratory and the catheter lab.
CONCLUSIONSIt is safe and feasible to carry out clinical interventional diagnosis and treatment in the miniature mobile cardiac catheterization laboratory as determined by this research. The miniature mobile cardiac catheterization laboratory may be considered a newly developed diagnosis and treatment platform for rescuing coronary heart disease patients in remote mountainous areas and/or at disaster sites.
Adult ; Aged ; Cardiac Catheterization ; methods ; Coronary Artery Disease ; surgery ; Coronary Disease ; diagnosis ; surgery ; Female ; Humans ; Male ; Middle Aged ; Percutaneous Coronary Intervention
7.Oral JS-38, a metabolite from Xenorhabdus sp., has both anti-tumor activity and the ability to elevate peripheral neutrophils.
Min-Yu LIU ; Lin XIAO ; Geng-Hui CHEN ; Yong-Xiang WANG ; Wei-Xia XIONG ; Fei LI ; Ying LIU ; Xiao-Ling HUANG ; Yi-Fang DENG ; Zhen ZHANG ; Hai-Yan SUN ; Quan-Hai LIU ; Ming YIN
Chinese Journal of Natural Medicines (English Ed.) 2014;12(10):768-776
AIM:
JS-38 (mitothiolore), a synthetic version of a metabolite isolated from Xenorhabdus sp., was evaluated for its anti-tumor and white blood cell (WBC) elevating activities.
METHOD:
These anti-proliferative activities were assessed in vitro using a panel of ten cell lines. The anti-tumor activities were tested in vivo using B16 allograft mouse models and xenograft models of A549 human lung carcinoma and QGY human hepatoma in nude mice. The anti-tumor interactions of JS-38 and cyclophosphamide (CTX) or 5-fluorouracil (5-Fu) were studied in a S180 sarcoma model in ICR mice. Specific stimulatory effects were determined on peripheral neutrophils in normal and CTX- and 5-Fu-induced neutropenic mice.
RESULTS:
The IC50 values ranged from 0.1 to 2.0 μmol·L(-1). JS-38 (1 μmol·L(-1)) caused an increase in A549 tumor cell apoptosis. Multi-daily gavage of JS-38 (15, 30, and 60 mg·kg(-1)·d(-1)) inhibited in vivo tumor progression without a significant effect on body weight. JS-38 additively enhanced the in vivo anti-tumor effects of CTX or 5-Fu. JS-38 increased peripheral neutrophil counts and neutrophil rates in normal BALB/c mice almost as effectively as granulocyte colony-stimulating factor (G-CSF). In mice with neutropenia induced by CTX or 5-Fu, JS-38 rapidly restored neutrophil counts.
CONCLUSION
These results suggest that JS-38 has anti-tumor activity, and also has the ability to increase peripheral blood neutrophils.
Animals
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Antineoplastic Agents
;
administration & dosage
;
metabolism
;
Cell Count
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Female
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Humans
;
Hydrocarbons, Fluorinated
;
administration & dosage
;
metabolism
;
Lung Neoplasms
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drug therapy
;
physiopathology
;
Mice
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Mice, Inbred BALB C
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Mice, Inbred ICR
;
Neutrophils
;
cytology
;
drug effects
;
Xenorhabdus
;
chemistry
;
metabolism
8.Clinical features and management of pyothorax due to postoperative cervical anastomotic leakage in esophageal cancer surgery.
Chong-ming HU ; Fu-you ZHOU ; Ming-fei GENG ; Dong-hong FU ; Xiao-tian SHI
Chinese Journal of Gastrointestinal Surgery 2013;16(9):871-873
OBJECTIVETo investigate the clinical characteristics and managements of pyothorax due to postoperative cervical anastomotic leakage after esophageal cancer surgery.
METHODSFrom January 2006 to January 2013, 3342 patients with esophageal carcinoma underwent esophagectomy and cervical esophagogastric anastomosis. Of them, 19 patients developed pyothorax following cervical anastomotic leakage and their clinicopathological data were analyzed retrospectively.
RESULTSAll the patients underwent a cervical anastomosis via a three-incisional approach (right cervicothoracic mid-abdominal incision, RT group, n=1094) or a two-incisional approach (left cervicothoracic incision, LT group, n=2248). The total number of cervical anastomotic leakage cases was 237, of which 152 cases were in LT group (6.8%), and 85 cases in RT group (7.8%), respectively (P=0.287). The incidence of pyothorax was 2.0% (n=3) in LT group, and 18.8% (n=16) in RT group, respectively (P<0.01). Fourteen cases develop pyothorax within 3 days after operation. The main symptoms were high fever, dyspnea and chest pain. All the pyothorax patients received conservative treatments, including thoracic closed drainage, nasogastric tube placement, jejunal stoma, nutritional support, antibiotics and symptomatic treatment. Sixteen cases were cured, while 3 cases were dead.
CONCLUSIONSThe right thoracotomy approach predisposes the cervical anastomotic leakage-associated pyothorax. Sufficient drainage and sufficient nutritional support are critical to the treatment.
Aged ; Anastomotic Leak ; Drainage ; methods ; Empyema, Pleural ; etiology ; surgery ; Esophageal Neoplasms ; surgery ; Esophagectomy ; adverse effects ; Female ; Humans ; Male ; Middle Aged ; Postoperative Complications ; surgery ; Retrospective Studies
9.Development of a visualization system for minimally invasive surgical abortion.
Da-ming PENG ; Geng-yuan WANG ; Xue-fei YU
Journal of Southern Medical University 2011;31(9):1579-1581
This article introduces the principle, structure and components of a visualization system for carrying out minimally invasive surgical abortion. Without altering the current surgical approach or increasing the surgical difficulty, the surgical system integrated a mini-CMOS image sensor and LED light and a visual device to allow fixed-point removal of the fetus or embryo in the minimally invasive surgery.
Abortion, Induced
;
methods
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Female
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Humans
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Minimally Invasive Surgical Procedures
;
methods
;
Pregnancy
10.An epidemiologic survey on blood lead levels in preschool children living in towns of Hunan Province.
Geng-Zhong JI ; Fang-Ming DENG ; Xin-Yin WU ; Qing-Xiang LI ; Jian-Hui SONG ; Wen-Hai LI ; Fei YIN
Chinese Journal of Contemporary Pediatrics 2010;12(8):645-649
OBJECTIVETo investigate blood lead levels (BLLs) and influencing factors of BLLs among preschool children living in towns of Hunan Province.
METHODSA total of 2 044 preschool children (1,108 boys and 936 girls) from towns of 12 regions in Hunan Province were enrolled by a cluster sampling between September 2008 and June 2009. The average age of the children was 4.4 ± 1.1 years (range 2 to 6 years). BLLs were determined using the atomic absorption spectrographic method. The influencing factors of BLLs were investigated using a standard questionnaire and logistic regression analysis.
RESULTSThe mean BLLs of the children were 81.9 ± 34.5 μg/L. BLLs more than 100 μg/ L were noted in 482 children (23.58%). Of the 482 children, 472 (23.09%) showed BLLs of 100-199 μg/L and 10 (0.49%) showed BLLs ≥ 200 μg/L. There were significant differences in the prevalence of elevated BLLs (≥ 100 μg/L) among different age groups (P < 0.01). The prevalence of elevated BLLs in boys (28.99%) was significantly higher than that in girls (21.98%) (P < 0.01). There were significant differences in the prevalence of elevated BLLs in children from different regions (P < 0.01). The logistic regression analysis showed that the male (OR = 1.449, P < 0.01), father's occupational lead exposure (OR = 1.314, P < 0.01)and maternal frequent use of hair dyes (OR = 1.678, P < 0.05) were risk factor for elevated BLLs.
CONCLUSIONSThe prevalence of elevated BLLs is higher in preschool children living in towns of Hunan Province and is associated with a child's region and age. The male, father's occupational lead exposure and maternal frequent use of hair dyes are risk factor for elevated BLLs.
Child ; Child, Preschool ; China ; Female ; Humans ; Lead ; blood ; Logistic Models ; Male ; Sex Characteristics

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