国内外胸腺瘤研究现状与趋势的文献可视化分析

International and domestic research advances of thymoma with visualized and evidence-based analysis of published papers

目的通过文献计量学相关方法对胸腺瘤相关中英文文献进行研究现况,探索国内外胸腺瘤研究趋势、热点及未来研究方向。方法对Web of Science及中国知网(CNKI)进行中英文文件检索,以"主题=胸腺瘤"为检索词,检索自建库以来至2022年4月1日,纳入已发表的胸腺瘤相关文献,采用VOSviewer 1.6.18以及CiteSpace 6.1软件对其进行作者、机构及关键词的聚类,通过社会网络和时序分析,进行文献可视化研究。结果分别纳入9314篇英文文献及5423篇中文文献,结果显示中英文文献年发文量均随时间逐渐递增,中文文献增幅较快;国家及地区层面胸腺瘤研究主要集中于欧美及日韩等国家,我国胸腺瘤相关研究起步较晚且缺少与其他国家的合作。关键词角度提示胸腺瘤研究主要围绕临床表现、诊断方案、合并症及手术相关,无论中文还是英文文献均提示近些年来手术术式及放疗化疗等综合治疗等关键词数量显著增加,提示可能是未来研究的趋势和热点。结论胸腺瘤国内研究较国外起步晚,但研究方向和领域与欧美等发达国家相似。与国外相比,国内文献对于胸腺瘤的基础研究较少。近些年来国内外研究趋势集中以胸腺瘤的外科治疗为主的综合治疗。

Objective To investigate the current status of research on thymoma-related literature in both Chinese and English through bibliometric methods and to explore the trends,hotspots,and future research directions of thymoma research at home and abroad.Methods A literature search was conducted on Web of Science and China Knowledge Network(CNKI)databases using the keyword"thymoma"as the subject.The search was conducted from the establishment of the database to April 3,2022,and included published literature related to thymoma.VOSviewer 1.6.18 and CiteSpace 6.1 software were used to cluster authors,institutions,and keywords.Social network and temporal analysis were conducted to visualize the literature.Results A total of 9314 English and 5423 Chinese documents were included.The results showed that the annual publication of both English and Chinese literature related to thymoma increased gradually over time,with a faster growth rate in Chinese literature.Thymoma research was primarily concentrated in Europe,America,Japan,and South Korea,with China's thymoma research starting later and lacking cooperation with other countries.Keyword analysis revealed that thymoma research focused mainly on clinical manifestations,diagnostic methods,complications,and surgery.Both Chinese and English literature showed a significant increase in the number of keywords related to comprehensive treatment,such as surgical techniques,radiotherapy and chemotherapy,in recent years,which may indicate future research trends and hotspots.Conclusions Thymoma research in China started later than in other countries,but the research direction and field are similar to those in developed countries such as Europe and America.Compared with foreign literature,there are fewer basic research studies on thymoma in Chinese literature.In recent years,both domestic and foreign research trends have focused on comprehensive treatment,mainly surgical treatment,of thymoma.