High-flow nasal oxygen in perioperative and critical care: a bibliometric analysis.
Over 2,300 unique publications exist on high-flow nasal oxygen research.
High-flow nasal oxygen in perioperative and critical care: a bibliometric analysis.
High-flow nasal oxygen (high-flow nasal oxygen), also known as high-flow nasal cannula, is an important noninvasive respiratory support strategy in perioperative and critical care practice.
We conducted a bibliometric and visual analysis of high-flow nasal oxygen research using English-language articles and reviews retrieved from the Web of Science Core Collection, Scopus, and PubMed for the period 2000-2025.
High-flow nasal oxygen research showed sustained exponential growth, with marked acceleration after 2018 and especially after 2020.
High-flow nasal oxygen research has evolved from a focused literature on oxygenation support into a broader and more clinically differentiated field spanning perioperative and critical care practice.
Current hotspots are increasingly centered on context-specific use, monitoring, failure prediction, and escalation decisions.
Future research should prioritize clinically actionable patient stratification, standardized outcome definitions, and protocol-based integration of high-flow nasal oxygen across different care pathways.