Association of dead space fraction to mortality in patients with COVID-19-related ARDS: A historical cohort observational study.

Objective: To assess the correlation of dead space fraction (VD/VT) measured through time capnography, corrected minute volume (CMV) and ventilation ratio (VR) with clinical outcomes in COVID-19 patients requiring invasive mechanical ventilation.

Design: Observational study of a historical cohort.

Setting: University hospital in Medellin, Colombia.