Increasing support by nasal high flow acutely modifies the ROX index in hypoxemic patients: A physiologic study
| Autor: | Elena Spinelli, Riccarda Russo, Antonio Pesenti, Tommaso Mauri, Giacomo Grasselli, Eleonora Carlesso, Cecilia Turrini, Francesca Dalla Corte, Oriol Roca, Jean-Damien Ricard |
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| Rok vydání: | 2019 |
| Předmět: |
Male
medicine.medical_specialty Index (economics) Respiratory rate Nose Critical Care and Intensive Care Medicine 03 medical and health sciences 0302 clinical medicine Respiratory Rate Internal medicine medicine Humans Lung volumes Prospective Studies Respiratory system Hypoxia Aged Acute hypoxemic respiratory failure Cross-Over Studies Noninvasive Ventilation business.industry Oxygen Inhalation Therapy 030208 emergency & critical care medicine Oxygenation Middle Aged 030228 respiratory system Cardiology Female Blood Gas Analysis High flow business Respiratory Insufficiency |
| Zdroj: | Journal of critical care. 53 |
| ISSN: | 1557-8615 |
| Popis: | The ROX (Respiratory rate-OXygenation) index is an early predictor of failure of nasal high flow (NHF), with lower values indicating higher risk of intubation. We measured the ROX index at set flow rate of 30 and 60 l/min in 57 hypoxemic patients on NHF. Patients with increased ROX index values at higher flow ( n = 40) showed worse baseline oxygenation, higher respiratory rate and lower ROX index in comparison to patients with unchanged or decreased ROX index values ( n = 17). The ROX index variation between flows was correlated with the change in end expiratory lung volume. Set flow rate during NHF might impact the ROX index value. |
| Databáze: | OpenAIRE |
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