Prone positioning for non-intubated spontaneously breathing patients with acute hypoxaemic respiratory failure: a systematic review and meta-analysis.

9 , 14 , 17 , 18 On the contrary, a prospective observational study found no benefit in reducing the risk of intubation, but rather showed a trend for delay. 20 A decrease in VF in awake prone positioning may be the result of the decrease in respiratory strain, and this is of clinical importance in avoiding tracheal intubation.

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Awake prone position may be a potential beneficial and effective intervention, but it may not be significant until applied in the optimal time and duration and to the right population.

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