The Science Journal of the American Association for Respiratory Care

2010 OPEN FORUM Abstracts


Andrew D. Marchese1, Demet Sulemanji1, Joseph Krathovil1, Jesús Villar2, Robert M. Kacmarek1; 1Respiratory Care, Massachusetts General Hospital, Boston, MA; 2Multidisciplinary Organ Dysfunction Evaluation Research Network, Research Unit, Hospital Universitario Dr. Negrin, Las Palmas de Gran Canaria, Spain

Background: A number of new transport ventilators have recently entered the market none of which have been evaluated. Critical to the daily use of these ventilators is their oxygen consumption and battery life. The ability of the Uni-Vent 731 (Impact), PB540 (Covidien), HT70 (Newport), Oxylog 3000 (Drager) and Trilogy O2 (Philips) to provide 50% Oxygen and operate off of battery power were evaluated. Methods: During both the oxygen and battery life evaluations ventilators were set in volume control mode, tidal volume 500 ml, inspiratory time 1.0 second, rate 20/min, and PEEP 5 cmH2O. Battery life was evaluated on 3 separate occasions following at least a 16 hours recharge period. Battery life (TBattery) was determined from the onset of ventilation until the ventilator stopped functioning. Oxygen consumption was determined on 3 separate occasions after the ventilator was set based on manufacturerÂ’s recommendation to deliver an FIO2 of 0.5 as determine by an oxygen analyzer in the ventilator circuit. Time was determined from the onset of ventilation until the FIO2 decreased to 0.45 (T45) and FIO2 returned to 0.21 (T21) or the ventilator stopped functioning. Results: The table below lists the results. Conclusion: Battery life on all ventilators was acceptable for intra and inter hospital transfer but did differ greatly. Oxygen consumption was as expected on some ventilators but also varied considerably. Sponsored Research - None