Continuous positive airway pressure for moderate to severe COVID-19 acute respiratory distress syndrome in a resource-limited setting

a) Respiratory support algorithm for coronavirus disease 2019 (COVID-19) acute respiratory distress syndrome (CARDS); b) completed outcomes for patients admitted with acute hypoxaemic respiratory failure (AHRF) April to August 2021; c) improvement in oxygenation with continuous positive airway pressure (CPAP) for moderate and severe CARDS (results for initial cohort April to May 2021 with complete data; n=31). Data are presented as mean±95% CI. S_pO2: peripheral oxygen saturation; RA: room air; O₂: oxygen; ABG: arterial blood gases; P_aO2: arterial oxygen tension; F_iO2: inspiratory oxygen fraction.