High-flow nasal oxygen (HFNO) is recommended as first-line treatment to prevent intubation in acute hypoxemic respiratory failure and to prevent reintubation after extubation. Accumulating data suggest that strong inspiratory efforts and their persistence are associated with HFNO failure. However, tools to monitor continuously and noninvasively inspiratory efforts are lacking. The investigators have developed an algorithm estimating noninvasively inspiratory efforts under HFNO. This pilot study aims at testing the feasibility of estimating inspiratory efforts in patients treated with HNFO.
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The detection of estimated inspiratory efforts under HFNO in patients breathing through the nose at a flow rate of 30 L/min in at least 16 of the 20 (ā„ 80%) patients included.
Timeframe: Day 1