Bibliometric and knowledge map analysis of one lung ventilation

Abstract

Background: One lung ventilation (OLV) is an essential method of lung isolation to protect the ventilated lung from soiling by the contralateral lung and obtain optimal surgical exposure in thoracic surgery. This study aims to examine the trends and developments in OLV research from 1982 to 2024 through bibliometric analysis.

Methods: The literature on OLV was systematically searched in the Web of Science Core Collection database for this study. VOSviewer and CiteSpace were utilized to perform comprehensive bibliometric and visual analyses of global publication/trends, countries/institutions, authors/co-cited authors, journals/co-cited journals, co-cited references, and keywords in the field of OLV.

Results: A total of 1,682 articles and reviews on OLV research were identified, which showed an overall growing trend from 1982 to 2024. The United States was the leader in this field, accounting for the largest number of publications (n=299). Among all institutions, Yonsei University had the largest number of publications (n=23), but National Taiwan University Hospital had the highest number of cited publications (n=876). The papers related to OLV were mainly published in Journal of Cardiothoracic and Vascular Anesthesia (n=147) and the most productive author was Cheng YJ (n=15). After keywords analysis, "infants", "dexmedetomidine", "inflammation", and "airway management" were newly emergent research hotspots.

Conclusions: Through bibliometric and visualization methods, we undertook a comprehensive analysis in the field of OLV. The United States maintained a top position in this field, the emerging hotspots of OLV changed from basic research to clinical research and the further innovation of OLV management. This study provides new ideas for scholars in their future works.

Keywords: Airway management; bibliometric; one lung ventilation (OLV); visual analysis.

Figure 1

Trends in the publication and citation frequency of one lung ventilation-related literature [1982–2024].

Figure 2

Visualization diagram of each country/region and institution regarding OLV applying VOSviewer. (A) Country or region visualization diagram shows that USA had the most publications and collaborations with other countries. (B) There were relatively few collaborations and exchanges among institutions from different countries/regions, and most collaborations were at a domestic level. OLV, one lung ventilation.

Figure 3

The collaborative network of authors and co-cited authors regarding OLV applying VOSviewer. (A) Cheng, Ya-Jung was the author with the largest number of publications. (B) Benumof, JL had the highest number of co-citations among all co-cited authors. Co-cited authors are defined as a minimum of two authors who are referenced in at least one subsequent paper, indicating their mutual citation relationship; OLV, one lung ventilation.

Figure 4

Literature relation network diagram by CiteSpace. (A) The article of Lohser, J in 2015 was the most frequently co-cited articles in total. The size of each node is directly proportional to the frequency of co-citations in the article. (B) Literature relation network diagram of document clustering, a total of 21 clusters.

Figure 5

Visualization of the top 25 high burst of cited literature and the relationship between the highly cited articles. (A) The first three citation bursts in the field of OLV research began in 2009. The red section on the blue timeline indicates the beginning and ending year and the outbreak period. (B) The article of Benumof in 1987 was still cited in recent years. The red dots represent highly cited articles, while the grey lines depict the interconnections among them. OLV, one lung ventilation.

Figure 6

Keyword co-occurrence network relationship diagram. (A) The keyword co-occurrence in the field of OLV was co-categorized into 6 clusters, reflecting the possible six research directions. Nodes of varying colors represent different clusters of keywords, and the node size correspond to their frequency. (B) The latest hot keywords included “dexmedetomine”, “meta-analysis”, “inflammation”, “infants” and “airway management”. OLV, one lung ventilation.