• Journal of critical care · Oct 2021

    Mortality associated with early changes in ARDS severity in COVID-19 patients - Insights from the PRoVENT-COVID study.

    • Michiel T U Schuijt, Ignacio Martin-Loeches, Marcus J Schultz, Frederique Paulus, NetoAry SerpaASDepartment of Intensive Care, Amsterdam UMC, location AMC, Amsterdam, the Netherlands; Department of Critical Care Medicine, Australian and New Zealand Intensive Care Research Centre (ANZIC-RC), Monash University, Melbourne, Australia., PRoVENT-COVID, PRoVENT-COVID Collaborative Group members. Electronic address: provent-covid@amsterdamumc.nl, and PRoVENT-COVID Collaborative Group members.
    • Department of Intensive Care, Amsterdam UMC, location AMC, Amsterdam, the Netherlands. Electronic address: m.t.u.schuijt@amsterdamumc.nl.
    • J Crit Care. 2021 Oct 1; 65: 237245237-245.

    PurposeWe investigated changes in ARDS severity and associations with outcome in COVID-19 ARDS patients.MethodsWe compared outcomes in patients with ARDS classified as 'mild', 'moderate' or 'severe' at calendar day 1, and after reclassification at calendar day 2. The primary endpoint was 28-day mortality. We also identified which ventilatory parameters had an association with presence of severe ARDS at day 2. We repeated the analysis for reclassification at calendar day 4.ResultsOf 895 patients, 8.5%, 60.1% and 31.4% had mild, moderate and severe ARDS at day 1. These proportions were 13.5%, 72.6% and 13.9% at day 2. 28-day mortality was 25.3%, 31.3% and 32.0% in patients with mild, moderate and severe ARDS at day 1 (p = 0.537), compared to 28.6%, 29.2% and 44.3% in patients reclassified at day 2 (p = 0.005). No ventilatory parameter had an independent association with presence of severe ARDS at day 2. Findings were not different reclassifying at day 4.ConclusionsIn this cohort of COVID-19 patients, ARDS severity and mortality between severity classes changed substantially over the first 4 days of ventilation. These findings are important, as reclassification could help identify target patients that may benefit from alternative approaches.Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.

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