ICU儿童谵妄研究的共词聚类分析

A co-word clustering analysis on pediatric delirium in ICU

目的对重症监护病房(ICU)儿童谵妄的研究成果进行宏观总结和聚类分析,了解其发展趋势和研究热点,为相关领域研究提供参考依据。方法检索美国国立图书馆PubMed数据库和Web of science核心合集中有关ICU儿童谵妄的文献,检索时限为建库至2021年5月24日,采用书目共现分析系统(Bicomb2.0)提取高频主题词并生成词篇矩阵和共现矩阵,进行词频分析;采用gCLUTO1.0软件对高频主题词进行双向聚类分析和可视化呈现。结果共纳入文献220篇,发文自2010年起,总体呈稳步上升趋势;220篇文献发表在93种期刊上,共816名作者。获得高频主题词24个,聚类分析得出ICU儿童谵妄的5个研究热点,即镇静药物的治疗用途、谵妄的病因及预防、谵妄的诊断筛查与护理、谵妄的流行病学、谵妄的药物治疗。结论5个研究热点侧面反映出ICU儿童谵妄相关的发表趋势。通过共词聚类分析可为中国危重症儿童谵妄研究提供一定参考,提高临床工作者对儿童谵妄的关注度。

Objective To summarize and cluster the research results of delirium in children in intensive care unit(ICU),to understand its development trend and research hotspot,and to provide reference for related research fields.Methods Literature related to ICU child delirium was searched from the PubMed database of the National Library of the United States and the core collection of Web of science.The search period was from the established of database until May 24,2021.The bibliographic items co-occurrence matrix builder(Bicomb 2.0)was used to extract high-frequency subject words and generate a discourse matrix and a co-occurrence matrix for word frequency analysis.The gCLUTO1.0 software was used for bidirectional cluster analysis and visualization of high-frequency subject words.Results A total of 220 literatures were included,with a steady upward trend since 2010.The 220 articles were published in 93 journals with a total of 816 authors.A total of 24 high-frequency subject words were obtained,and five research hotspots of delirium in ICU children were identified by cluster analysis,namely,the therapeutic use of sedation drugs,the etiology and prevention of delirium,the diagnosis,screening and nursing of delirium,the epidemiology of delirium,and the drug treatment of delirium.Conclusion The five research hotspots reflect publication trends related to delirium in ICU children.The co-word clustering analysis can provide some reference for the study of delirium in critically ill children in China,and improve the attention of clinical workers to delirium in children.