• Romain Jouffroy, Michael Darmon, Foucauld Isnard, Guillaume Geri, Alexandra Beurton, Muriel Fartoukh, Jean-Jacques Tudesq, Safaa Nemlaghi, Alexandre Demoule, Elie Azoulay, and Antoine Vieillard-Baron.
• Service de Médecine intensive et réanimation, Hôpital Ambroise Paré, Assistance Publique Hôpitaux de Paris, France.
• J Crit Care. 2021 Aug 1; 64: 199204199-204.

PurposeStudies performed in spontaneously breathing patients with mild to moderate respiratory failure suggested that prone position (PP) in COVID-19 could be beneficial.Materials And MethodsConsecutive critically ill patients with COVID-19 were enrolled in four ICUs. PP sessions lasted at least 3 h each and were performed twice daily. A Cox proportional hazard model identified factors associated with the need of intubation. A propensity score overlap weighting analysis was performed to assess the association between spontaneous breathing PP (SBPP) and intubation.ResultsAmong 379 patients, 40 underwent SBPP. Oxygenation was achieved by high flow nasal canula in all but three patients. Duration of proning was 2.5 [1.6;3.4] days. SBPP was well tolerated hemodynamically, increased PaO2/FiO2 (78 [68;96] versus 63 [53;77] mm Hg, p = 0.004) and PaCO2 (38 [34;43] versus 35 [32;38] mm Hg, p = 0.005). Neither day-28 survival (HR 0.51, 95% CI 0.16-1.16] nor risk of invasive ventilation [sHR 0.96; 95% CI 0.49;1.88] differed between patients who underwent PP and others.ConclusionsSBPP in COVID-19 is feasible and well tolerated in severely hypoxemic patients. It did not induce any effect on risk of intubation and day-28 mortality.Copyright © 2021. Published by Elsevier Inc.

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