RT Journal Article
SR Electronic
T1 Battery Life of Portable Home Ventilators: Effects of Ventilator Settings
JF Respiratory Care
FD American Association for Respiratory Care
SP 1048
OP 1052
DO 10.4187/respcare.02711
VO 59
IS 7
A1 Line Falaize
A1 Karl Leroux
A1 Hélène Prigent
A1 Bruno Louis
A1 Sonia Khirani
A1 David Orlikowski
A1 Brigitte Fauroux
A1 Frédéric Lofaso
YR 2014
UL http://rc.rcjournal.com/content/59/7/1048.abstract
AB BACKGROUND: The battery life (BL) of portable home ventilator batteries is reported by manufacturers. The aim of this study was to evaluate the effects of ventilator mode, breathing frequency, PEEP, and leaks on the BL of 5 commercially available portable ventilators. METHODS: The effects of the ventilator mode (volume controlled-continuous mandatory ventilation [VC-CMV] vs pressure support ventilation [PSV]), PEEP 5 cm H2O, breathing frequency (10, 15, and 20 breaths/min), and leaks during both volume-targeted ventilation and PSV on the BL of 5 ventilators (Elisée 150, Monnal T50, PB560, Vivo 50, and Trilogy 100) were evaluated. Each ventilator was ventilated with a test lung at a tidal volume of 700 ml and an inspiratory time of 1.2 s in the absence of leaks. RESULTS: Switching from PSV to VC-CMV or the addition of PEEP did not significantly change ventilator BL. The increase in breathing frequency from 10 to 20 breaths/min decreased the BL by 18 ± 11% (P = .005). Leaks were associated with an increase in BL during the VC-CMV mode (18 ± 20%, P = .04) but a decrease in BL during the PSV mode (−13 ± 15%, P = .04). CONCLUSIONS: The BL of home ventilators depends on the ventilator settings. BL is not affected by the ventilator mode (VC-CMV or PSV) or the addition of PEEP. BL decreases with an increase in breathing frequency and during leaks with a PSV mode, whereas leaks increase the duration of ventilator BL during VC-CMV.