A Bibliometric Analysis of Endoscopic Sedation Research: 2001–2020

Abstract

Background and Aims: To evaluate endoscopic sedation research and predict research hot spots both quantitatively and qualitatively using bibliometric analysis.Methods: We extracted relevant publications from the Web of Science Core Collection (WoSCC) on 13 December 2020. We examined the retrieved data by bibliometric analysis (e.g., co-cited and cluster analysis, keyword co-occurrence) using the software CiteSpace and VOSviewer and the website of bibliometrics, the Online Analysis Platform of Literature Metrology (http://bibliometric.com/), to analyse and predict the trends and hot spots in this field.Main Results: We identified 2,879 articles and reviews on endoscopic sedation published between 2001 and 2020. Although the overall trend is increasing, with slight fluctuation in some years, there were significant increases in 2007 and 2012. In respect of the contributions on endoscopic sedation research, the United States (US) had the greatest number of publications, and it was followed by Japan and China. In addition, collaboration network analysis revealed that the most frequent collaboration was between the US and China. Six of the top ten most prolific research institutions were located in the US. The most publications on endoscopic sedation research in the past two decades were found primarily in journals on gastroenterology and hepatology. Keyword co-occurrence and co-citation cluster analysis revealed the most popular terms relating to endoscopic sedation in the manner of cluster labels; these included patient anxiety, tolerance, ketamine, propofol, hypoxia, nursing shortage, endoscopic ultrasonography, colorectal cancer, carbon dioxide insufflation, and water exchange (WE). Keyword burst detection suggested that propofol sedation, adverse event, adenoma detection rate (ADR), hypoxemia, and obesity were newly-emergent research hot spots.Conclusions: Our findings showed that hypoxia, adverse event, and ADR, along with conscious sedation and propofol sedation, have been foci of endoscopic sedation research over the past 20 years. The research focus has shifted from sedative drugs to sedative complications and endoscopy quality control, which means that there will be higher requirements and standards for sedative quality and endoscopy quality in the future.

A bibliometric analysis of preoperative anxiety research (2001–2021)

“…To reduce data bias, we used the Web of Science (Classic) Core Collection, one of the most comprehensive and authoritative databases ( 23 ), to perform an advanced search for literature, refined by articles from 2001 to 2021, and downloaded all the required data on January 1, 2022. The downloaded articles were stored in plain text in a newly-created folder titled “Data.” In the meantime, we also created a folder titled “Project” to store the data after analysis.…”

“…Data imported into CiteSpace5.8 were selected by the following options: time-slicing was set to “2001–2021;” the number of years per slice was set to “1;” the selection criterion was set to “g-index;” and the scale factor k was set to “25” for the node type. Only one option at a time was selected for “author,” “institution,” “country,” “reference,” “cited author,” and “keyword.” Data imported into VOSviewer1.6.17 were used to create the term maps by using the following options: “Create a map based on bibliographic data,” “read data from bibliographic database files,” “type of analysis: co-occurrence,” “unit of analysis: all keywords,” “counting method: full counting,” and “minimum number of occurrences of a keyword: 25.” ( 23 )…”

“…TOPIC: TS = (*preoperati* near/3 anxiet*) The use of "*" means any group of characters Refined by: DOCUMENT TYPES:(ARTICLE) Timespan: 2001-2021. Language: English To reduce data bias, we used the Web of Science (Classic) Core Collection, one of the most comprehensive and authoritative databases (23), to perform an advanced search for literature, refined by articles from 2001 to 2021, and downloaded all the required data on January 1, 2022. The downloaded articles were stored in plain text in a newly-created folder titled "Data."…”

“…Data imported into VOSviewer1.6.17 were used to create the term maps by using the following options: "Create a map based on bibliographic data," "read data from bibliographic database files," "type of analysis: co-occurrence," "unit of analysis: all keywords," "counting method: full counting," and "minimum number of occurrences of a keyword: 25." (23) We began our analysis with a comprehensive overview of preoperative anxiety publications. First, we drew a chart illustrating the number of annual publications.…”

Intranasal sufentanil combined with intranasal dexmedetomidine: A promising method for non-anesthesiologist sedation during endoscopic ultrasonography

“…In patients undergoing complex endoscopic procedures, the current standard of practice is to administer sedative medication intravenously. Propofol-based sedation has become the first choice for endoscopic sedation over the last two decades because of its fast onset of action and short half-life[ 5 , 6 ]. Although there is compelling evidence to support the quality, cost effectiveness, and safety profile of the administration of propofol for EUS in the absence of an anesthesiologist[ 7 , 8 ], it is currently recommended that the administration and monitoring of propofol sedation for endoscopic procedures should be the responsibility of a dedicated and appropriately trained anesthetist only.…”