Oxygenation saturation index predicts clinical outcomes in ARDS

K DesPrez, JB McNeil, C Wang, JA Bastarache… - Chest, 2017 - Elsevier
Background Traditional measures of ARDS severity such as Pa o 2/F io 2 may not reliably
predict clinical outcomes. The oxygenation index (OI [F io 2× mean airway pressure×
100)/Pa o 2]) may more accurately reflect ARDS severity but requires arterial blood gas
measurement. We hypothesized that the oxygenation saturation index (OSI [F io 2× mean
airway pressure× 100)/oxygen saturation by pulse oximetry (Sp o 2)]) is a reliable
noninvasive surrogate for the OI that is associated with hospital mortality and ventilator-free …