• Crit Care · Jul 2020

    Prone positioning in severe ARDS requiring extracorporeal membrane oxygenation.

    • Jonathan Rilinger, Viviane Zotzmann, Xavier Bemtgen, Carin Schumacher, Paul M Biever, Daniel Duerschmied, Klaus Kaier, Peter Stachon, Constantin von Zur Mühlen, Manfred Zehender, Christoph Bode, Dawid L Staudacher, and Tobias Wengenmayer.
    • Department of Medicine III (Interdisciplinary Medical Intensive Care), Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany. jonathan.rilinger@universitaets-herzzentrum.de.
    • Crit Care. 2020 Jul 8; 24 (1): 397.

    BackgroundProne positioning (PP) has shown to improve survival in patients with severe acute respiratory distress syndrome (ARDS). To this point, it is unclear if PP is also beneficial for ARDS patients treated with veno-venous extracorporeal membrane oxygenation (VV ECMO) support.MethodsWe report retrospective data of a single-centre registry of patients with severe ARDS requiring VV ECMO support between October 2010 and May 2018. Patients were allocated to the PP group if PP was performed during VV ECMO treatment or the supine positioning group. VV ECMO weaning success and hospital survival were analysed before and after propensity score matching.ResultsA total of 158 patients could be analysed, and 38 patients (24.1%) received PP. There were no significant differences in VV ECMO weaning rate (47.4% vs. 46.7%, p = 0.94) and hospital survival (36.8% vs. 36.7%, p = 0.98) between the prone and supine groups, respectively. The analysis of 38 propensity score matched pairs also showed no difference in hospital survival (36.8% vs. 36.8%, p = 1.0) or VV ECMO weaning rate (47.4% vs. 44.7%, p = 0.82). Hospital survival was superior in the subgroup of patients treated with early PP (cutoff < 17 h via Youden's Index) as compared to late or no PP (81.8% vs. 33.3%, p = 0.02).ConclusionIn this propensity score matched cohort of severe ARDS patients requiring VV ECMO support, prone positioning at any time was not associated with improved weaning or survival. However, early initiation of prone positioning was linked to a significant reduction of hospital mortality.

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