2015~2019年急诊医学研究热点分析——基于CiteSpace的可视化研究

目的:分析急诊医学领域的核心期刊2015-2019年刊载论文的的知识图谱，展示急诊医学研究领域研究的整体情况，突显研究进展中的重要内容，并挖掘出急诊医学期刊报道的研究热点。方法:在中国知网和万方数据库以2015-2019年为条件检索7本急诊医学核心期刊的相关文献并导出数据，共纳入7 753篇有效文献，并利用可视化软件CiteSpace分析纳入文献的发文作者、机构、关键词等信息，生成可视化图谱。结果:通过分析2015-2019年的知识图谱发现，于学忠、朱华栋、张劲松、张茂、刘欣伟、刘颖、徐军、聂时南等作者是急诊医学领域作者群中的中坚力量；北京协和医院急诊科、首都医科大学附属北京朝阳医院急诊科、解放军总医院急诊科、东部战区总医院急救医学科、西京医院急诊科、沈阳军区总医院急诊医学部等是发文量最多的机构；近5年急诊核心期刊研究重点集中于病死率、急性肺损伤、心搏骤停、预后、机械通气、急性心肌梗死、血液灌流等主题。结论:CiteSpace生成可视化图谱有助于直观了解急诊医学研究领域演化的关键路径、发展趋势及前沿热点，为今后的相关研究提供了更多依据。

Analysis of hot spots in emergency medicine research from 2015 to 2019--visualization analysis based on CiteSpace

Objective:To analyze the knowledge graph of the papers published in the core journals of emergency medicine from 2015 to 2019, to present the overall situation of the research in the field of emergency medicine, to highlight the important contents in the research progress, and to unearth the research hotspots reported in the journals of emergency medicine.Methods:The relevant literatures of 7 core journals of emergency medicine were retrieved and exported from CNKI and Wanfang databases published in 2015-2019. A total of 7753 valid literatures were included. The visualization software CiteSpace was used to analyze the information of authors, institutions and keywords in the exported literatures to generate visual graphs.Results:By analyzing the knowledge graph from 2015 to 2019, it is found that Yu Xuezhong, Zhu Huadong, Zhang Jinsong, Zhang Mao, Liu Xinwei, Liu Yin, Xu Jun, and Nie Sinnan were the backbone of the author group in the field of emergency medicine. Emergency Department of Peking Union Medical College Hospital, Beijing Chaoyang Hospital Affiliated to Capital Medical University, Emergency Department of PLA General Hospital, Emergency Medicine Department of Eastern Theater General Hospital, Emergency Department of Xijing Hospital, and Emergency Medicine Department of Shenyang Military Region General Hospital were the institutions with the most publications. In recent 5 years, the core journals of emergency medicine focused on the topics on mortality, acute lung injury, cardiac arrest, prognosis, mechanical ventilation, acute myocardial infarction and hemoperfusion.Conclusions:The visual graphs generated by CiteSpace helps to intuitively understand the critical path, development trend and frontier hot spots of the evolution of the research field of emergency medicine, and provides more basis for future related research.