Combining reservoir mask oxygenation with high-flow nasal cannula in the treatment of hypoxemic respiratory failure among patients with COVID-19 pneumonia: a retrospective cohort study.

Acute Crit Care · 2023 · PMC10718500 · PMID 37994019

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did not reach statistical significanceno p-value reported

Differences in the secondary outcomes did not reach statistical significance.

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may be significantno p-value reported

In other words, 15 L/min of RM added to the HFNC of 40 L/min (increasing flow by 37.5) may be significant in view of the high PIF in respiratory failure [ 12 , 13 ].

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