我国早产儿营养研究现状的可视化研究

Visualization study of current research on nutrition of premature infants in China

摘要:

目的：生长发育不良将造成神经系统的不良预后事件，而生后不适当的营养供给是造成生长发育不良的重要因素。本研究采用共词分析法对我国早产儿营养的研究现状进行分析，展现我国近六年该领域的研究情况，描绘我国早产儿营养的研究趋势，为未来的研究提示可能的研究方向。方法：于2013年1月以主题词“早产儿”及“营养”在CNKI数据库进行文献检索及筛选，命中文献772篇，使用Excel 2010提取高频关键词并建立共现矩阵，最后使用Ucinet 6.0绘制可视化网络。结果：通过我国早产儿营养支持研究的知识图谱可以看出，我国早产儿营养支持方式的关注热点仍以静脉营养与胃肠内营养相结合为主，其目的是维持早产儿适宜的生长发育速率。在临床营养支持过程中，静脉营养的并发症受到了研究者的高度重视；而喂养不耐受依然是早产儿营养支持特别是胃肠内营养所面临的主要问题。结论：初步建立了我国早产儿营养研究现状的可视化网络并据此进行了知识图谱的绘制，反映了近年来该研究领域的热点及现状。

Abstract:

OBJECTIVE: Inadequate postnatal nutritional support is an important factor contributing to growth failure, which leads to poor neurological outcome. In this study, co-word analysis was used to investigate the research on nutrition of premature infants over the last six years in China, describe the research trend in this field in China, and provide possible directions for future research. METHODS: A literature search was performed in January 2013 using the CNKI database and the key words “preterm infant” and “nutrition”. A total of 772 articles were retrieved. Then high-frequency key words were extracted using Excel 2010 to create a co-occurrence matrix. Finally, a visualized network was built using Ucinet 6.0. RESULTS: The knowledge domain map of research on nutritional support for premature infants in China showed that the major topic of relevant research is still the combination of parenteral nutrition and enteral nutrition, with the goal of maintaining appropriate growth rates in premature infants. Researchers have paid much attention to the adverse effects of parenteral nutrition. Feeding intolerance is still the main problem in nutritional support, especially enteral nutrition, for premature infants. CONCLUSIONS: A visualized network of current research on nutrition of premature infants in China has been created, and a knowledge domain map has been drawn to reflect the hot topics in this field of study over the last six years.