4.3 Article

A novel non-invasive index of oxygenation and prediction of outcomes for patients on high-flow nasal cannula: a pilot study

Journal

INTERNAL MEDICINE JOURNAL
Volume 52, Issue 10, Pages 1831-1835

Publisher

WILEY
DOI: 10.1111/imj.15924

Keywords

acute respiratory failure; hypoxaemic respiratory failure; oxygen therapy and oxygen index; high-flow nasal prongs

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The FOx index can efficiently predict the outcome of high-flow nasal prongs therapy in acute respiratory failure, providing clinicians with a valuable tool in managing this condition.
Predicting success of a therapy in acute respiratory failure is clinically important. The FOx index (high-flow rate x FiO(2))/SpO(2) was retrospectively applied to 70 patients who required high-flow nasal prongs for hypoxaemic and hypercapnic respiratory failure. The FOx index could predict between success and failure of high-flow nasal prongs at 6 hours, using non-invasive markers. This adds to the clinician's toolbox in managing respiratory failure and represents important proof of concept for a prospective study.

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