Predictors of Non-invasive Respiratory Support Failure in COVID-19 Pneumonia

The main objective of the current study is to search predictors of non-invasive respiratory support failure, like high -flow oxygen system (HFO) and pressure systems, Bilevel positive airway pressure (BiPAP) and continuous positive airway pressure (CPAP), in patients with acute hypoxemia produced by COVID-19 pneumonia. In the first phase, we will do a retrospective review of the intermediate respiratory care unit activity from March to May 2020 in the target population. In the second phase development an interventional study. At admission all patients will be treated with HFS monitoring clinical variables like respiratory frequency, oxygen saturation, gasometer results and oxygen inspiration fraction. In case of HFO failure, the patients will be randomized to treatment with CPAP or BIPAP. The same clinical variables will be monitoring to analysis their prediction capacity of failure therapy, defined as mortality or need to intubation. The results will be adjusted comorbidity grade, age and initial severity pneumonia. Secondary objectives of study are 90 days mortality, functional recovery at 90 days and to realise a cost-effectiveness valuation of non-invasive respiratory supports in this disease.