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Hyperbaric oxygen therapy research: an analysis of the 100 most-cited publications from 2011 to 2020

Objective: Hyperbaric oxygen (HBO2) is used in several clinical and research fields. This study aimed to analyze the 100 most-cited hyperbaric-related publications of the past 10 years to understand the trends in HBO2 research.

Methods: This was a literature review. All publication and citation data were retrieved from the Scopus database. Publications with “hyperbaric oxygen,” “hyperbaric oxygenation,” “HBO,” and “HBOT” in the title, abstract, or keywords published between January 01, 2011, and December 31, 2020, were enrolled. The 100 most-cited HBO2-focused publications were identified, and their publication title, authors’ nationality, publication journal, year, type (original or review), and application field were recorded and analyzed using descriptive statistics. Linear regression was used to evaluate the trends in publication numbers.

Results: A total of 6,517 publications were enrolled. The annual rate of increase was 4.56 per year (p-value = 0.13, 95% CI: -1.62 to 10.74). The total, average, median and mode of citations were 67,726, 10.4, 4, and 0, respectively. The 100 most-cited HBO2-focused publications accounted for 1.5% (100/6,517) of all publications and 8.1% (5509/67,726) of the total number of times cited. The most cited

publications originated from 17 countries and were published in 65 journals, led by the Cochrane Database of Systematic Reviews.

Conclusions: The annual number of HBO2 publications was stationary. The citation numbers showed a skewed distribution. The United States was the leading country in HBO2 research. Of 26 application fields, traumatic brain injury, stroke, and diabetic foot were the leading three fields.

10.22462/07.08.2022.11