Positive end expiratory pressure in invasive and non-invasive ventilation of COVID-19 acute respiratory distress syndrome: computational modeling illuminates the data
Weaver, L.; Bates, D. G.; Camporota, L.
Show abstract
Positive end expiratory pressure (PEEP) is routinely used as part of lung protective ventilation strategies in the treatment of acute respiratory distress syndrome (ARDS). In the case of ARDS arising due to COVID-19 (CARDS), there is some debate as to whether the atypical pathophysiological characteristics of the disease which lead to hypoxaemia could warrant a modified approach to ventilator management, particularly with regards to PEEP settings. Here we review the available evidence for the existence of a unique underlying lung pathophysiology in CARDS, and for the suitability of standard approaches to setting PEEP, in both the invasive and non-invasive ventilation settings. We show how detailed computational models informed by this evidence can shed light on the available data, and help to interpret recent results in the literature.
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