基于PubMed数据库的危重患者肠内营养研究热点共词聚类分析

Co-word clustering analysis for hot research topics in enteral nutrition in critically ill patients based on PubMed

目的分析PubMed数据库中2011至2020年危重患者肠内营养研究的热点,了解该领域的研究现状及发展趋势。方法通过PubMed检索2011至2020年发表的危重患者肠内营养文献,运用Biocomb软件和gCLUTO软件对主题词进行词频及图形聚类分析。结果共纳入5686篇危重患者肠内营养研究文献,主要来自于美国、英国,且发文量整体呈增长趋势。通过双向聚类分析总结出5个研究热点,包括:极低出生体重儿喂养的相关研究、危重患者吸入性肺炎的预防控制、肠内营养置管方式相关研究、危重患者蛋白质摄入相关研究、危重患者肠内营养指南临床实施相关研究。结论近10年来,国外学者重视对危重患者肠内营养的研究,研究热点分析有助于了解该领域的研究现状及发展趋势,为我国学者开展研究和实践工作提供了参考和借鉴。

Objective To identify hot research topics about enteral nutrition in critically ill patients in PubMed from 2011 to 2020,and to explore the current research landscape and development directions.Methods Literature about enteral nutrition published from 2011 to 2020 were retrived in the PubMed database.Subject headings in publications were extracted using BICOMB and then two-way cluster analysis was performed using gCLUTO to cluster the subjects and generate cluster curve,matrix and tree diagram.Results A total of 5,686 publications were included,mostly published in Unites States and United Kingdom and with an increasing trend.The researches focused on five aspects including feeding practice in very low birth weight infants,prevention and control of aspiration pneumonia in critically ill patients,catheterization methods in enteral nutrition,protein intake in critically ill patients,and clinical implementation of enteral nutrition guidelines in critically ill patients.Conclusions Much importance has been attached to enteral nutrition researches over the recent decade.Analysis of hot research topics in enteral nutrition is beneficial to understanding the current research landscape and development directions and providing references for practice,research and education of enteral nutrition.