Difference in PaO2/FiO2 between high-flow nasal cannula and Venturi mask in hypoxemic COVID-19 patients

Autor: Ilenia Gatto, Emanuela Biagioni, Irene Coloretti, Serena Viappiani, Stefano Busani, Massimo Girardis
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Journal of Anesthesia, Analgesia and Critical Care, Vol 2, Iss 1, Pp 1-3 (2022)
Druh dokumentu: article
ISSN: 2731-3786
DOI: 10.1186/s44158-022-00051-w
Popis: Abstract The ratio between arterial blood partial pressure of oxygen and fraction of inspired oxygen (PaO2/FiO2) was largely used for grading and managing the respiratory failure in non-mechanically ventilated COVID-19. In these patients, the assessment of the true FiO2 in the inspired mixture may be difficult with consequent inaccuracies in PaO2/FiO2 assessment. In 30 severe COVID-19 patients, we observed that PaO2/FiO2 values measured immediately before and after the transition from high-flow nasal cannula (HFNC) to one commercially available Venturi mask O2 therapy were similar (bias mean value 0, standard deviation 23 mmHg). In COVID-19 patients recovering from respiratory failure, PaO2/FiO2 is not different whether measured with a commercially available Venturi mask or HFNC.
Databáze: Directory of Open Access Journals