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1
High-flow nasal oxygen (HFNO) is a significant noninvasive respiratory support strategy in perioperative and critical care settings.
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2
The bibliometric analysis included 2,314 unique publications on HFNO from 2000 to 2025, showing exponential growth, especially post-2018.
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3
The leading contributors to HFNO research are the United States and China, with major publications in respiratory medicine and critical care journals.
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4
Co-citation analysis revealed clusters related to acute respiratory failure, perioperative oxygen therapy, and treatment monitoring.
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5
HFNO research has shifted focus from perioperative oxygenation to broader applications in critical care, emphasizing context-specific use and monitoring.
