Oxygenation Index and Alveolar-arterial Oxygen Gradient Predict Mortality in Pediatric Bone Marrow Transplantation • 211

Oxygenation Indices in Noninvasive Ventilation: Could They Predict Mortality in COVID-19?

“…In pediatric patients undergoing bone marrow transplantation, oxygenation index and A–a gradient were shown to be good predictors of mortality. 7 The A–a gradient has also shown to be a predictor in HIV patients who developed Pneumocystis pneumonia as well as an indication to initiate steroid therapy in these patients. 8 A pilot study by Gabrielli et al showed that an elevated A–a gradient did have a significant correlation with ICU admission in COVID-19, but not with mortality.…”