%0 Journal Article %A Pricila Mara Novais de Oliveira %A Armando Augusto Almeida, Junior %A Celize Cruz Bresciani Almeida %A Maria Ângela Gonçalves de Oliveira Ribeiro %A José Dirceu Ribeiro %T Neonatal and pediatric manual hyperinflation: Influence of oxygen flow rates on ventilatory parameters. %D 2013 %R 10.4187/respcare.02336 %J Respiratory Care %P respcare.02336 %X Background: Although self-inflating bags are widely used for manual hyperinflation, they do not allow ventilation parameters to be set, such as pressure or volume. This study evaluated the ventilatory performance of neonatal and pediatric self-inflating bags from three manufacturers at different oxygen flow rates. Methods: Twenty-two physiotherapists were asked to manually hyperinflate 2 lung models (neonatal and pediatric), using self-inflating bags from 3 manufactures (Hudson, Laerdal, and JG Moriya), with flow rates of 0, 5, 10, and 15L/min. A pneumotachograph (CO2SMO+®) recorded tidal volume (VT), peak inspiratory pressure (PIP), peak inspiratory (PIF) and expiratory flows, and inspiratory time. Results: The VT, PIP, and inspiratory time delivered by Hudson, Laerdal, and JG Moriya in both neonatal and pediatric self-inflating bags were significant different (P < .001). The peak expiratory flow and PIF delivered were different only when using the neonatal self-inflating bags (P < .001). The VT, PIP, and PIF delivered using 0 L/min was lower than when receiving 15 L/min (P < .05) with all tested bags in neonatal and pediatric sizes. Conclusions: The performance of neonatal and pediatric bags varied by manufacture and by oxygen flow rate applied. There was an increase in VT, PIP, and PIF related to the increase of oxygen flow rate from 0 L/min to 15 L/min. The neonatal bags showed higher ventilatory parameters variation when compared to the pediatric self-inflating bags. %U https://rc.rcjournal.com/content/respcare/early/2013/09/11/respcare.02336.full.pdf