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REVIEW ARTICLE
Year : 2020  |  Volume : 3  |  Issue : 2  |  Page : 66-75

High-flow nasal cannula: A narrative review of current uses and evidence


Department of Anaesthesia and Surgical Intensive Care, Changi General Hospital, Singapore

Correspondence Address:
Dr. Prit Anand Singh
Changi General Hospital, 2 Simei Street, 529889
Singapore
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/ARWY.ARWY_21_20

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High-flow nasal cannula (HFNC) is a relatively new mode of oxygen supplementation. Warmed and humidified air/oxygen mixtures are delivered at high flows via a nasal cannula to patients. There are many observed physiological benefits for the use of HFNC. There is, therefore, increasing interest surrounding the use of HFNC in adult patients for improving oxygenation. This highly versatile device has been studied expansively in different clinical scenarios, from critical care, to the operating theatre, and even in palliative care. The usefulness of HFNC in management of the global pandemic of coronavirus disease 2019 further attests to its potential. However, evidence surrounding HFNC is still largely inconclusive. More high-quality randomised studies should be conducted to evaluate and justify the routine use of HFNC. Research efforts focused on developing clinical strategies on initiation, monitoring, escalation, de-escalation and titration will contribute to developing more precise guidelines for HFNC therapy.


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