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The In-Flight Realtime Trigger and Localization Software of GECAM

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Research in Astronomy and Astrophysics 2024年第10期24卷 11-24页

作者： xiao-Yun Zhao shao-Lin xiong xiang-Yang Wen xin-Qiao Li Ce cai Shuo xiao Qi Luo Wen-xi Peng dong-Ya Guo zheng-hua An Ke Gong Jin-Yuan Liao Yan-Qiu Zhang Yue huang Lu Li xing Wen Fei Zhang Jing Duan Chen-Wei wang dong-Li Shi Peng Zhang Qi-Bin Yi Chao-Yang Li Yan-Bing xu xiao-hua liang Ya-Qing liu Da-Li Zhang xi-Lei Sun Fan Zhang Gang Chen huan-Yu wang Sheng Yang xiao-Jing liu Min Gao Mao-Shun Li Jin-Zhou wang xing Zhou Yi Zhao wang-Chen xue Chao zheng Jia-Cong liu xing-bo Han Jin-Ling Qi Jia huang Ke-Ke Zhang Can Chen xiong-Tao Yang dong-Jie Hou Yu-Sa wang Rui Qiao xiang Ma xiao-bo Li ping wang xin-Ying Song Li-Ming Song Shi-Jie zheng Bing Li Hong-Mei Zhang Yue Zhu Wei Chen Jian-Jian He zhen Zhang Jin Hou Hong-Jun wang Yan-Chao Hao xiang-Yu wang Zong-Yuan Yang Zhi-Long Wen Zhi Chang Yuan-Yuan Du Rui Gao xiao-Fei Lan Yan-Guo Li Gang Li xu-Fang Li Fang-Jun Lu Hong Lu Bin Meng Feng Shi Hui wang Hui-zhen wang Yu-Peng xu Jia-Wei Yang xue-Juan Yang Shuang-Nan Zhang Chao-Yue Zhang Cheng-Mo Zhang Zhi-Cheng Tang Cheng Cheng Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China university of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China School of Information Science and Technology Southwest Jiaotong UniversityChengdu 611756China Key Laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Physics and Space Science college China West Normal UniversityNanchong 637002China Department of Astronomy Beijing Normal UniversityBeijing 100875China Innovation Academy for Microsatellites of CAS Shanghai 201203China Changchun university of Science and Technology Changchun 130022China Chinese Academy of Sciences South America Center for Astronomy National Astronomical ObservatoriesCASBeijing 100101China

Realtime trigger and localization of bursts are the key functions of GECAM,an all-sky gamma-ray monitor launched on 2020 December *** developed a multifunctional trigger and localization software operating in the CPU of the GECAM Electronic *** onboard software has the following features:high trigger efficiency for real celestial bursts with a suppression of false triggers caused by charged particle bursts and background fluctuation,dedicated localization algorithm optimized for both short and long bursts,and low time latency of the trigger information which is downlinked through the Global Short Message Communication service of the global BeiDou navigation *** paper provides a detailed description of the design and development of the trigger and localization software system for *** covers the general design,workflow,the main functions,and the algorithms used in the *** paper also includes on-ground trigger tests using simulated gamma-ray bursts generated by a dedicated X-ray tube,as well as an overview of the performance for real celestial bursts during its in-orbit operation.

关键词： telescopes instrumentation:detectors methods:observational

CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis bodrov Anton bogomyagkov Serge bondarenko Stewart boogert Maarten boonekamp Marcello borri Angelo bosotti Vincent boudry Mohammed boukidi Igor boyko Ivanka bozovic Giuseppe bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia hua cai Wenyong cai Wujun cai Yijian cai Yizhou cai Yuchen cai Haiying cai huacheng cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance xuejun Chang Yue Chang Zhe Chang xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen hua-xing Chen Huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen shao-Long Chen shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen xiang Chen xiaoyu Chen xin Chen xun Chen xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen boping Chen Chunhui Chen Hok Chuen Cheng huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui xiaohao Cui Zhaoyuan Cui Brunella D'Anzi Ling-Yun Dai xinchen Dai xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi dong Jianin AGH university of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui university HefeiAnhui Applied Physics Department Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu university Institute of ScienceVaranasi Bandirma Onyedi Eylul university Bandirma Beihang university Beijing Beijing Computational Science Research Center Beijing Beijing Conveyi LTD Beijing Beijing Glass Research Institute Co. LtdBeijing Beijing Institute of Technology Beijing Beijing Normal university Beijing Brown university ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad university Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech cairo university Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central china Normal university WuhanHubei Central South university ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan china academy of engineering physics MianyangSichuan china building materials academy Beijing china Center of Advanced Science and Technology Beijing china Institute of Atomic Energy Beijing china Jiliang university HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china university of Geosciences Beijing china university of Geosciences WuhanHubei china university of Mining and Technology XuzhouJiangsu china West Normal university NanchongSichuan chongqing university Department of PhysicsChongqing Chulalongkorn university Bangkok City university of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell university IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu university DalianLiaoning Dalian university of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East china university Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by china,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV Linac,a 1.1 GeV Damping Ring,a booster capable of achieving energies up to 180 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The Linac and Damping Ring are situated on the surface,while the subterranean booster and Collider are housed in a 100 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×10^(34)cm^(-2)s^(-1)per interaction point(IP),resulting in an integrated luminosity of 13 ab^(-1)for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2015)and the Conceptual Design Report(CDR,2018),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2027-2028,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2030s.

关键词： initiated exceeding precise

Paired quasi-periodic pulsations of hard X-ray emission in a solar flare

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Science china(Physics,Mechanics & Astronomy) 2023年第5期66卷 195-206页

作者： Hai-Sheng Zhao dong Li shao-Lin xiong Yan-Qiu Zhang Yang Su Wei Chen Yi Zhao xiao-bo Li Jia-Cong liu Wen-xi Peng Rui Qiao xin-Qiao Li xiang-Yang Wen Li-Ming Song Shi-Jie zheng xin-Ying Song xiao-Yun Zhao Yue huang Shuang-Nan Zhang Shuo xiao Ce cai zheng-hua An Can Chen Gang Chen Wei Chen Yan-Qi Du Min Gao Ke Gong dong-Ya Guo Zhi-Wei Guo Jian-Jian He Bin Li Chao Li Chao-Yang Li Gang Li Jian-Hui Li Lu Li Qing-xin Li Yan-Guo Li Jing liang xiao-hua liang Jin-Yuan Liao xiao-Jing liu Ya-Qing liu Qi Luo xiang Ma Bin Meng Ge Ou dong-Li Shi Jing-Yan Shi Gong-xing Sun xi-Lei Sun You-Li Tuo Chen-Wei wang Hui wang Jin wang Jin-Zhou wang ping wang Wen-Shuai wang Hong Wu Sheng-Lun xie Yan-Bing xu Yu-Peng xu wang-Chen xue Sheng Yang Min Yao Jian-Ying Ye Qi-Bin Yi Chao-Yue Zhang Da-Li Zhang Fan Zhang Fei Zhang Hong-Mei Zhang Kai Zhang Peng Zhang xiao-Lu Zhang zhen Zhang Guo-Ying Zhao Shi-Yi Zhao Chao zheng xing Zhou Yue Zhu Key Laboratory for Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China university of Chinese Academy of Sciences Beijing 100049China Department of Astronomy Beijing Normal UniversityBeijing 100875China School of Computing and Artificial Intelligence Southwest Jiaotong UniversityChengdu 611756China Physics and Space Science college China West Normal UniversityNanchong 637002China Key Laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Institute of Astrophysics Central China Normal UniversityWuhan 430079China School of Physics Changchun University of Science and TechnologyChangchun 130022China college of Physics and Engineering Qufu Normal UniversityQufu 273165China college of Physics Sciences&Technology Hebei UniversityBaoding 071002China

We investigate high time resolution data obtained by the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM)during the flare event on 2022 April 21 at 01:52 *** subpeaks with durations of 4-6 s have been detected in the hard X-ray precursor phase,and the key feature is that they appear in pairs and seem like double-peak *** subpeaks are rarely observed in hard X-ray band and confirmed by the microwave obtained by Nobeyama Radio Polarimeters(NoRP)and Radio Solar Telescope Network(RSTN).While an exponential function can describe the continuum component of the time profile from the precursor to part of the impulsive *** periods of quasi-periodic pulsations(QPPs)are detected to be about 7.3 and 12.8 s for the precursor and impulsive phase,respectively,with at least 95%confidence *** paired QPPs are assumed to be double-peak QPPs and then the scenario of current loop coalescence model is found to be in good agreement with our *** precursor phase can be interpreted as the oscillating coalescence of two islands,while the impulsive phase can be interpreted as more islands to coalesce one by one to form larger islands.

关键词： solar flare QPPs loop coalescence circular-ribbon flare

Anti-cyclic citrullinated peptide antibody predicts the development of rheumatoid arthritis in patients with undifferentiated arthritis

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Chinese Medical Journal 2019年第24期132卷 2899-2904页

作者： Chun Li Yan Zhang Hui Song Jie Gao dong-Bao Zhao Qi Zhu dong-Yi He Li wang xiang-Pei Li xu-dong liu Wei-Guo xiao xin-Yu Wu hua-xiang Wu Wei Tu shao-xian Hu xin wang Zhi-Jun Li Zhi-Min Lu Zhan-Yun Da bo liang xiao-Min liu Jin-Wei Zhao Ling Li Feng Han Wu-Fang Qi Wei Wei xu Ma zhen-Bin Li Gui-Min zheng Feng-xiao Zhang Yi Li You-Lian wang Guang-Hui Ling Jin-Wei Chen xiao-Qiang Hou Jing Zhang Qing-ping Chen Chang-Lian liu Yan Zhang Jia-Shun Zeng Qing-hua Zou Yong-Fei Fang Yin Su Zhan-Guo Li Department of Rheumatology and Immunology Peking University People's HospitalBeijing 100044China Department of Rheumatology and Immunology Beijing Jishuitan HospitalBeijing 100035China Department of Rheumatology and Immunology Changhai HospitalShanghai 200433China Department of Rheumatology Shanghai Guanghua Hospital of Integrated Traditional Chinese and Western MedicineShanghai 200052China Department of Rheumatology and Immunology Anhui Provincial HospitalHefeiAnhui 230001China Department of Rheumatology and Immunology The First Hospital of China Medical UniversityShenyangLiaoning 110001China Department of Rheumatology The Second Affiliated Hospital of Zhejiang University School of MedicineHangzhouZhejiang 310009China Department of Rheumatology and Immunology Tongji HospitalWuhanHubei 430030China Department of Rheumatology The First Affiliated Hospital of Bengbu Medical CollegeBengbuAnhui 233004China Department of Rheumatology and Immunology Affiliated Hospital of Nantong UniversityNantongJiangsu 226001China Department of Rheumatology and Immunology The Hospital of Shunyi District BeijingBeijing 101300China Department of Infection and Immunology Tianjin Union Medical CenterTianjin 300121China Department of Rheumatology and Immunology Tianjin First Central HospitalTianjin 300192China Department of Rheumatology and Immunology Tianjin Medical University General HospitalTianjin 300052China Department of Rheumatology and Immunology Peace HospitalShijiazhuangHebei 050000China Department of Rheumatology and Immunology Hebei General HospitalShijiazhuangHebei 050051China Department of Rheumatology Jiangxi Provincial People's HospitalNanchangJiangxi 330006China Division of Rheumatology and Immunology The Second Xiangya Hospital of Central South UniversityChangshaHunan 410011China Department of Rheumatology and Immunology The First College of Clinical Medical Science of China Three Gorges University&Yichang Central People's HospitalYichangHubei 443003China Department of Rheu

Background:Clinical outcomes of undifferentiated arthritis(UA)are diverse,and only 40%of patients with UA develop rheumatoid arthritis(RA)after 3 *** predictive markers at disease onset for further intervention is ***,our objective was to analyze the clinical outcomes of UA and ascertain the predictors for RA ***:We performed a prospective,multi-center study from January 2013 to October 2016 among Chinese patients diagnosed with UA in 22 tertiary-care *** and serological parameters were obtained at ***-up was undertaken in all patients every 12 weeks for 2 *** factors of disease progression were identified using multivariate Cox proportional hazards ***:A total of 234 patients were recruited in this study,and 17(7.3%)patients failed to follow up during the *** the 217 patients who completed the study,83(38.2%)patients went into *** patients who developed RA had a higher rheumatoid factor(RF)-positivity(42.9%vs.16.8%,χ^2=8.228,P=0.008),anti-cyclic citrullinated peptide(CCP)antibodypositivity(66.7%vs.10.7%,χ^2=43.897,Pbody(38.1%vs.4.1%,χ^2=32.131,Pbody but not RF was an independent predictor for RA development(hazard ratio 18.017,95%confidence interval:5.803–55.938;Pbody should be tested at disease onset in all patients with UA.

关键词： Anti-cyclic citrullinated peptide antibody Arthritis,Rheumatoid Rheumatoid factor Undifferentiated arthritis

湖南省极低/超低出生体重儿抗生素使用多中心调查报告

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中国当代儿科杂志 2020年第6期22卷 561-566页

作者：王铭杰岳少杰林锦高喜容彭小明陈孟雨彭华保曹蓓曾云清王淑莲文波黄西林李小萍张爱珍曹庭陈艺华陈铁强叶春华薄涛蒋德林黄秀群任娜芳陶龙章姚芳田昌军李鸿鸣张爱民黄芙蓉张卫国陈湘红刘玉婵刘正林许燕山明靖松陈理朱宁一贺军民易赛君王团美李朝晖王桂田中南大学湘雅医院新生儿科湖南长沙410008 美国纽约西奈山医院新生儿科美国纽约11364 湖南省儿童医院新生儿科湖南长沙410007 郴州市第一人民医院新生儿科湖南郴州423000 湖南省妇幼保健院新生儿科湖南长沙410008 娄底市中心医院新生儿科湖南娄底417000 邵阳市中心医院新生儿科湖南邵阳422203 常德市第一人民医院新生儿科湖南常德415003 湘西土家族苗族自治州人民医院新生儿科湖南湘西416000 长沙市妇幼保健院新生儿科湖南长沙410007 中南大学湘雅三医院儿科湖南长沙410013 永州市中心医院新生儿科湖南永州425300 湘潭市中心医院新生儿科湖南湘潭411100 益阳市中心医院新生儿科湖南益阳413000 张家界市人民医院新生儿科湖南张家界427099 岳阳市妇幼保健院新生儿科湖南岳阳414000 湖南省人民医院新生儿科湖南长沙410021 湖南师范大学附属湘东医院新生儿科湖南株洲412205 株洲市妇幼保健院新生儿科湖南株洲412008 湖南医药学院附属第一医院新生儿科湖南怀化418000 岳阳市第一人民医院新生儿科湖南岳阳414020 娄星区妇幼保健院/人民医院新生儿科湖南娄底417099 长沙市中心医院新生儿科湖南长沙410018 湘潭市妇幼保健院新生儿科湖南湘潭411104 衡阳市妇幼保健院新生儿科湖南衡阳421004

目的对湖南省新生儿病房极低出生体重(VLBW)和超低出生体重(ELBW)患儿住院期间抗生素使用情况进行调查,为规范湖南省新生儿病房住院早产儿抗生素的合理应用提供临床数据。方法对湖南省24家三级医疗机构新生儿病房上报的2017年1~12月住院... 详细信息

目的对湖南省新生儿病房极低出生体重(VLBW)和超低出生体重(ELBW)患儿住院期间抗生素使用情况进行调查,为规范湖南省新生儿病房住院早产儿抗生素的合理应用提供临床数据。方法对湖南省24家三级医疗机构新生儿病房上报的2017年1~12月住院VLBW/ELBW患儿抗生素使用情况进行调查。结果 24家医疗机构2017年全年住院VLBW/ELBW患儿共1?442例,抗生素中位使用时间为17 d(范围:0~86 d),抗生素使用时间占住院时间的53.0%。各医疗机构抗生素使用时间占住院时间的百分比差异较大,最高达91.4%,最低为14.6%,2/3(16家)的单位超过50.0%。血及脑脊液细菌培养阳性共113例,细菌培养阳性率为7.84%,各机构细菌培养阳性率不同(0%~14.9%)。败血症常见致病菌中肺炎克雷伯杆菌检出29例(25.7%),大肠杆菌12例(10.6%),金黄色葡萄球菌3例(2.7%)。使用最多的抗生素为第三代头孢菌素类抗生素,占全部抗生素使用的41.00%;其次为青霉素类抗生素(32.10%),再次为碳青霉烯类抗生素(13.15%)。抗生素使用时间占比与出生体重Z值、出生体重与出院体重Z值的差值呈负相关(分别r_s=-0.095、-0.151,均P<0.01),与病死/放弃率呈正相关(r_s=0.196,P<0.01)。结论湖南省新生儿病房住院VLBW/ELBW患儿抗生素使用时间较长,不同医疗机构抗生素使用情况差别大。第三代头孢菌素及碳青霉烯类抗生素使用比例较高。

关键词：多中心调查抗生素极低出生体重儿超低出生体重儿

新型冠状病毒感染者脊柱外科急诊手术的围手术期管理专家共识

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脊柱外科杂志 2020年第6期18卷 361-368页

作者：华文彬郜勇李危石仉建国朱泽章王冰李方财何达马真胜魏欣杨磊任东平张雪松李利吴继功徐宝山宁广智武汉杨群戈朝晖康学文夏磊高延征刘新宇刘浩初同伟熊伟夏平陈雄生白玉树殷国勇王向阳刘向阳杨军林万勇董健文丁文元陶惠人王迎松吴星火张宇坤郑东潘海涛吴永超曾宪林李锋邵增务杨述华邱海波王征杨操华中科技大学同济医学院附属协和医院骨科武汉430022 北京大学第三医院骨科北京100191 北京协和医院骨科北京100032 南京大学医学院附属鼓楼医院骨科南京210008 中南大学湘雅二医院骨科长沙410011 浙江大学医学院附属第二医院骨科杭州310056 北京积水潭医院骨科北京100035 空军军医大学西京医院骨科西安710032 华中科技大学同济医学院附属协和医院麻醉科武汉430022 华中科技大学同济医学院附属协和医院手术室武汉430022 中国人民解放军总医院骨科北京100853 中国人民解放军战略支援部队特色医学中心骨科北京100010 天津医院骨科天津300211 天津医科大学总医院骨科天津300052 吉林大学中日联谊医院骨科长春130033 大连医科大学附属第一医院骨科大连116011 宁夏医科大学总医院骨科银川750004 兰州大学第二医院骨科兰州730000 郑州大学第一附属医院骨科郑州450052 河南省人民医院骨科郑州450003 山东大学齐鲁医院骨科济南250012 四川大学华西医院骨科成都610041 陆军军医大学新桥医院骨科重庆400037 华中科技大学同济医学院附属同济医院骨科武汉430030 武汉市第一医院骨科武汉430022 海军军医大学附属长征医院骨科上海200003 海军军医大学附属长海医院骨科上海200433 南京医科大学第一附属医院骨科南京210029 温州医科大学附属第二医院骨科温州325000 湖南省人民医院骨科长沙410002 上海交通大学医学院附属新华医院骨科上海200092 中山大学附属第一医院骨科广州510080 中山大学附属第三医院骨科广州510630 河北医科大学第三医院骨科石家庄050091 深圳大学总医院骨科深圳518055 昆明医科大学附属第二医院骨科昆明650031 东南大学附属中大医院重症医学科南京210009

自2019年12月以来,已有200余个国家和地区相继报道了新型冠状病毒感染病例,世界卫生组织(WHO)于2020年3月12日宣布新型冠状病毒全球大流行,截至6月18日,全球已累计有824万余人感染,44万余人死亡,对全世界医疗、政治和经济领域影响巨大[1... 详细信息

自2019年12月以来,已有200余个国家和地区相继报道了新型冠状病毒感染病例,世界卫生组织(WHO)于2020年3月12日宣布新型冠状病毒全球大流行,截至6月18日,全球已累计有824万余人感染,44万余人死亡,对全世界医疗、政治和经济领域影响巨大[1-2]。WHO将其命名为“2019冠状病毒感染性疾病”(COVID-19),病原体被命名为重症急性呼吸综合征冠状病毒2(SARS-CoV-2)[3-6]。按照《中华人民共和国传染病防治法》,COVID-19被纳入乙类传染病,采取甲类传染病的预防控制措施[7]。

关键词：脊柱疾病冠状病毒感染肺炎,病毒性急诊处理外科手术

中国14家医院超/极早产儿早期预后的多中心调查

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中国医刊 2018年第12期53卷 1356-1362页

作者：孔祥永张珊封志纯徐凤丹童笑梅刘少君刘子源吕红艳杨李红吴素静巨容汪瑾彭立赵小林郭金珍李占魁曾淑娟丘惠娴温伟溪武辉李莹李楠贾文峥张雪峰郭果刘卫鹏王凤李改梅刘芳李薇赵晓英程红斌许云波陈文超尹欢丁艳洁王晓亮单瑞艳许平韩梅盈杨春燕陈铁强张路叶春华儿童器官功能衰竭北京市重点实验室陆军总医院附属八一儿童医院新生儿科北京100700 南方医科大学陆军总医院临床医学院北京100700 出生缺陷防控关键技术国家工程实验室北京100000 广东医学院广东东莞523808 北京大学第三医院新生儿科北京100191 邯郸市妇幼保健院新生儿科河北邯郸056001 成都市妇女儿童中心医院新生儿科四川成都610091 西北妇女儿童医院新生儿科陕西西安710003 深圳市龙岗中心医院儿科广东深圳518116 吉林大学第一医院儿科吉林长春130021 解放军第302医院新生儿科北京100039 海军总医院儿科北京100048 白求恩国际和平医院儿科河北石家庄050000 黄石市妇幼保健院儿科湖北黄石435003 烟台毓璜顶医院儿科山东烟台264000 聊城市人民医院儿科山东聊城252004 长沙妇幼保健院新生儿科湖南长沙410007

目的报道国内14家医院产科收治的出生胎龄24～31周早产儿的早期病死率和主要并发症发生率,并分析其影响因素。方法收集2013年1月1日至2014年12月31日国内14家医院产科收治的出生胎龄24～31周早产儿的一般资料,分析各胎龄组早产儿的病死... 详细信息

目的报道国内14家医院产科收治的出生胎龄24～31周早产儿的早期病死率和主要并发症发生率,并分析其影响因素。方法收集2013年1月1日至2014年12月31日国内14家医院产科收治的出生胎龄24～31周早产儿的一般资料,分析各胎龄组早产儿的病死率和主要并发症如支气管肺发育不良(bronchopulmonary dysplasia,BPD)、新生儿坏死性小肠结肠炎(necrotizing enterocolitis,NEC)、早产儿视网膜病(retinopathy of prematurity,ROP)、脑室内出血(intraventricular hemorrhage,IVH)和败血症等的发生率,并分析其影响因素。结果 24～31周各胎龄组早产儿的存活率分别为0、28.0%、84.8%、83.5%、87.4%、90.7%、93.9%和96.0%,无严重合并症存活率分别为0、8.0%、60.6%、53.2%、62.3%、67.9%、79.1%和85.8%,随着胎龄的增加存活率及无严重合并症存活率均增加。胎龄28周早产儿的产前激素使用率低于28～31周(28.0%～44.3%vs 49.7%～59.6%,P32.3%。早产儿胎龄越小,并发症发生率越高。24～31周早产儿总体呼吸窘迫综合征的发生率为58.5%, BPD的发生率为12.5%,NEC的发生率为3.9%,IVH的发生率为15.4%,ROP的发生率为5.4%,动脉导管未闭的发生率为28.4%,败血症的发生率为9.7%。低胎龄(OR=0.891,95%CI:0.796～0.999,P=0.0047)、低出生体重(OR=0.520,95%CI:0.420～0.643,P=0.000)、小于胎龄儿(OR=1.861,95%CI:1.148～3.017,P=0.012)和5分钟低Apgar评分(OR=1.947,95%CI:1.269～2.987,P=0.002)是早产儿死亡的高危因素。低胎龄(OR=0.666,95%CI:0.645～0.688,P=0.000)、低出生体重(OR=0.921,95%CI:0.851～0.997,P=0.041)、男性(OR=1.235,95%CI:1.132～1.347,P=0.000)、小于胎龄儿(OR=1.511,95%CI:1.300～1.755,P=0.000)、5分钟时低Apgar评分(OR=2.262,95%CI:1.950～2.624,P=0.000)以及围产期合并症如前置胎盘(OR=1.452,95%CI:1.202～1.753,P=0.000)、胎盘早剥(OR=1.380,95%CI:1.082～1.760,P=0.010)、妊娠期高血压疾病(OR=2.262,95%CI:1.950～2.624,P=0.000)、多胎(OR=1.162,95%CI:1.056～1.278,P=0.002)和产前发热(OR=1.367,95%CI:1.228～1.521,P=0.000)等是早产儿并发症发生的高危因素。产前使用激素治疗可以降低超早产儿和极早产儿的死亡风险(OR=0.615,95%CI:0.483～0.801,P=0.033)。结论胎龄26周以下超早产儿的存活率较低,26～31周早产儿的存活率虽逐渐接近发达国家,但严重并发症的发生率较高,提高对围产期合并症的预防和管理有助于改善此类早产儿的生存质量。

关键词：超早产儿极早产儿预后