RT Journal Article SR Electronic T1 Self-Proning in COVID-19 Patients on Low-Flow Oxygen Therapy. A Cluster Randomised Controlled Trial JF ERJ Open Research JO erjor FD European Respiratory Society SP 00692-2020 DO 10.1183/23120541.00692-2020 A1 Aileen Kharat A1 Elise Dupuis-Lozeron A1 Chloé Cantero A1 Christophe Marti A1 Olivier Grosgurin A1 Sanaz Lolachi A1 Frédéric Lador A1 Jérôme Plojoux A1 Jean-Paul Janssens A1 Paola M. Soccal A1 Dan Adler YR 2021 UL http://openres.ersjournals.com/content/early/2021/01/28/23120541.00692-2020.abstract AB Rationale and objectives Prone positioning as a complement to oxygen therapy to treat hypoxemia in coronavirus disease (COVID-19) pneumonia in spontaneously breathing patients has been widely adopted, despite a lack of evidence for its benefit.To test the hypothesis that a simple incentive to self-prone for a maximum of 12 h per day would decrease oxygen needs in patients admitted to the ward for COVID-19 pneumonia on low-flow oxygen therapy.Methods Twenty-seven patients with confirmed COVID-19 pneumonia admitted to Geneva University Hospitals were included in the study. Ten patients were randomised to self-prone positioning and 17 to usual care.Measurements and Main Results Oxygen needs assessed by oxygen flow on nasal cannula at inclusion were similar between groups. Twenty-four hours after starting the intervention, the median oxygen flow was 1.0 L·min−1 (interquartile range, 0.1–2.9) in the prone position group and 2.0 L·min−1 (interquartile range, 0.5–3.0) in the control group (p=0.507). Median oxygen saturation/fraction of inspired oxygen ratio was 390 (interquartile range, 300–432) in the prone position group and 336 (interquartile range, 294–422) in the control group (p=0.633). One patient from the intervention group who did not self-prone was transferred to the high-dependency unit. Self-prone positioning was easy to implement. The intervention was well tolerated and only mild side-effects were reported.Conclusions Self-prone positioning in patients with COVID-19 pneumonia requiring low-flow oxygen therapy resulted in a clinically meaningful reduction of oxygen flow, but without reaching statistical significance.FootnotesThis manuscript has recently been accepted for publication in the ERJ Open Research. It is published here in its accepted form prior to copyediting and typesetting by our production team. After these production processes are complete and the authors have approved the resulting proofs, the article will move to the latest issue of the ERJOR online. Please open or download the PDF to view this article.Conflict of interest: Dr. Kharat has nothing to disclose.Conflict of interest: Dr. Supuis-Lozeron has nothing to disclose.Conflict of interest: Dr. Cantero has nothing to disclose.Conflict of interest: Dr. Marti has nothing to disclose.Conflict of interest: Dr. Grosgurin has nothing to disclose.Conflict of interest: Dr. Lolachi has nothing to disclose.Conflict of interest: Dr. Lador has nothing to disclose.Conflict of interest: Dr. Plojoux has nothing to disclose.Conflict of interest: Dr. Janssens has nothing to disclose.Conflict of interest: Dr. Soccal has nothing to disclose.Conflict of interest: Dr. Adler has nothing to disclose.