HIGH-FLOW NASAL CANNULA VERSUS NONINVASIVE VENTILATION IN ACUTE HYPOXEMIC RESPIRATORY FAILURE: A CRITICAL REVIEW BY PHENOTYPES AND INTUBATION RISK

Authors

Keywords:

Acute respiratory failure; Hypoxemia; Noninvasive ventilation; High-flow nasal cannula; Intubation; Oxygen therapy

Abstract

DOI: https://doi.org/10.46296/gt.v9i17.0339

Abstract

Acute hypoxemic respiratory failure (AHRF) is a common ICU condition, often due to pneumonia, postoperative lung dysfunction, or pulmonary edema, and is characterized by severe hypoxemia without major hypercapnia(5). Noninvasive oxygenation strategies are critical to avoid endotracheal intubation and its complications (ventilator-induced lung injury, ventilator-associated pneumonia, etc.) (2). Two key approaches are high-flow nasal cannula (HFNC), which delivers heated humidified oxygen at high flow rates, and noninvasive ventilation (NIV) with positive pressure via a mask. This critical review compares HFNC vs NIV in AHRF, focusing on which patient phenotypes derive greater net benefit from each strategy and the certainty of evidence. We synthesize findings on intubation rates and mortality with each therapy, as well as other outcomes (ventilator-free days, therapy failure, patient comfort, and safety). Pre-specified subgroups are examined: “de novo” AHRF (e.g., pneumonia/ARDS without hypercapnia), post-surgical respiratory failure, cardiogenic pulmonary edema, and COPD exacerbation (hypercapnic phenotype). We also discuss sources of heterogeneity across studies (intubation criteria, NIV interface – helmet vs mask –, pressure settings, co-interventions like awake prone positioning) and safety considerations (risks of delayed intubation, barotrauma, aspiration, and patient self-inflicted lung injury). Results: In general AHRF, HFNC has proven at least as effective as NIV in preventing intubation, with better tolerance and potential survival advantages(3, 4). However, in specific phenotypes (e.g., hypercapnic COPD or cardiogenic edema), NIV remains the standard. Further research is needed to tailor the optimal support strategy to patient profiles.

Keywords: Acute respiratory failure; Hypoxemia; Noninvasive ventilation; High-flow nasal cannula; Intubation; Oxygen therapy.

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Published

2026-01-10

How to Cite

Alzate-Garcia, D. M., Montano-Saavedra, J. A., Jaimes-Uribe, Y. A., Algarin-Mendoza, R. J., Ángel-Hernández, V., Nagi-Prieto, A. N., Agamez-Utria, A. J., Díaz-Lasso, B. D. J., Motta-Aguirre, M. P., & Simanca-Arias, D. (2026). HIGH-FLOW NASAL CANNULA VERSUS NONINVASIVE VENTILATION IN ACUTE HYPOXEMIC RESPIRATORY FAILURE: A CRITICAL REVIEW BY PHENOTYPES AND INTUBATION RISK. GESTAR Arbitrated Scientific Journal in Health Research. ISSN: 2737-6273., 9(17), 154-181. Retrieved from https://www.journalgestar.org/index.php/gestar/article/view/302