The sensitivity and accuracy of the retrieval results directly affect the results in the systematic review of biomedical researchers. However, different retrieval methods and retrieval tools lead to different retrieval results. In this paper, we first evaluate the effects of Boolean logic retrieval, hierarchical retrieval, topic retrieval and full-text retrieval on the retrieval results of systematic reviews. We then introduce the application of one-stop search tool (Google Scholar and resource discovery system) in systematic review, and compare the effects of different one-stop search tools.
ObjectiveTo explore the trend and hotspots of research in the field of peripherally inserted central catheter (PICC), so as to provide a reference for clinical nursing and nursing research in the field of vascular access in China.MethodsAll PICC-related articles from 1806 to November 22nd, 2018 were searched in the Foreign Medical Retrieval System. The publication amount, year of publication, language, country, journals and impact factor, high-yield authors and high-frequent medical subject headings (MeSH) of the PICC-related articles were analyzed by using frequency, cumulative frequency, and constituent ratio.ResultsA total of 1 550 articles were included. They were published in 586 journals, of which 393 were included in Science Citation Index. English was the dominant publication language, and the top high-yield country was the United States. The top 16 high-yield authors published 199 articles, the top 3 of whom all had published co-operative papers, ranging from 1 article to 19 articles. The top 3 high-frequent MeSHs were “Catheters, Indwelling” “Catheterization, Central Venous” “Central Venous Catheter”.ConclusionsPICC has become a hotspot in clinical research, and the publication amount of relative literature has increased rapidly since 2000. Chinese scholars should improve their English and carry out multi-center cooperative research to improve the quality of PICC-related literature.