• Benedetta Giammarioli, BurnsKaren E AKEADivision of Critical Care, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada., Bhakti K Patel, and Michael C Sklar.
• Division of Critical Care, St. Michael's Hospital, Unity Health Toronto, Toronto, Ontario, Canada.
• Curr Opin Crit Care. 2022 Dec 1; 28 (6): 660666660-666.

Purpose Of ReviewTo review the clinical problem and noninvasive treatments of hypoxemia in critically-ill patients with coronavirus disease 2019 pneumonia and describe recent advances in evidence supporting bedside decision making.Recent FindingsHigh-flow nasal oxygen and noninvasive ventilation, along with awake prone positioning are potentially helpful therapies for acute hypoxemic respiratory failure. High-flow nasal oxygen therapy has been widely implemented as a form of oxygen support supported by prepandemic randomized controlled trials showing possible benefit over noninvasive ventilation. Given the sheer volume of patients, noninvasive ventilation was often required, and based on a well conducted randomized controlled trial there was a developing role for helmet-interface noninvasive. Coupled with noninvasive supports, the use of awake prone positioning demonstrated physiological benefits, but randomized controlled trial data did not demonstrate clear outcome superiority.SummaryThe use of noninvasive oxygen strategies and our understanding of the proposed mechanisms are evolving. Variability in patient severity and physiology may dictate a personalized approach to care. High-flow nasal oxygen may be paired with awake and spontaneously breathing prone-positioning to optimize oxygen and lung mechanics but requires further insight before widely applying to clinical practice.Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.

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