• Kevin Roedl, Dominik Jarczak, Liina Thasler, Martin Bachmann, Frank Schulte, Berthold Bein, Christian Friedrich Weber, Ulrich Schäfer, Carsten Veit, Hans-Peter Hauber, Sebastian Kopp, Karsten Sydow, Andreas de Weerth, Marc Bota, Rüdiger Schreiber, Oliver Detsch, Jan-Peer Rogmann, Daniel Frings, Barbara Sensen, Christoph Burdelski, Olaf Boenisch, Axel Nierhaus, Geraldine de Heer, and Stefan Kluge.
• Department of Intensive Care Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany. Electronic address: k.roedl@uke.de.
• Aust Crit Care. 2021 Mar 1; 34 (2): 167-175.

BackgroundThere are large uncertainties with regard to the outcome of patients with coronavirus disease 2019 (COVID-19) and mechanical ventilation (MV). High mortality (50-97%) was proposed by some groups, leading to considerable uncertainties with regard to outcomes of critically ill patients with COVID-19.ObjectivesThe aim was to investigate the characteristics and outcomes of critically ill patients with COVID-19 requiring intensive care unit (ICU) admission and MV.MethodsA multicentre retrospective observational cohort study at 15 hospitals in Hamburg, Germany, was performed. Critically ill adult patients with COVID-19 who completed their ICU stay between February and June 2020 were included. Patient demographics, severity of illness, and ICU course were retrospectively evaluated.ResultsA total of 223 critically ill patients with COVID-19 were included. The majority, 73% (n = 163), were men; the median age was 69 (interquartile range = 58-77.5) years, with 68% (n = 151) patients having at least one chronic medical condition. Their Sequential Organ Failure Assessment score was a median of 5 (3-9) points on admission. Overall, 167 (75%) patients needed MV. Noninvasive ventilation and high-flow nasal cannula were used in 31 (14%) and 26 (12%) patients, respectively. Subsequent MV, due to noninvasive ventilation/high-flow nasal cannula therapy failure, was necessary in 46 (81%) patients. Renal replacement therapy was initiated in 33% (n = 72) of patients, and owing to severe respiratory failure, extracorporeal membrane oxygenation was necessary in 9% (n = 20) of patients. Experimental antiviral therapy was used in 9% (n = 21) of patients. Complications during the ICU stay were as follows: septic shock (40%, n = 90), heart failure (8%, n = 17), and pulmonary embolism (6%, n = 14). The length of ICU stay was a median of 13 days (5-24), and the duration of MV was 15 days (8-25). The ICU mortality was 35% (n = 78) and 44% (n = 74) among mechanically ventilated patients.ConclusionIn this multicentre observational study of 223 critically ill patients with COVID-19, the survival to ICU discharge was 65%, and it was 56% among patients requiring MV. Patients showed high rate of septic complications during their ICU stay.Copyright © 2020 Australian College of Critical Care Nurses Ltd. Published by Elsevier Ltd. All rights reserved.

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