Dräger VN500's oscillatory performance has a frequency-dependent threshold

J John; ER Harcourt; PG Davis; DG Tingay

Journal article

Dräger VN500's oscillatory performance has a frequency-dependent threshold

J John, ER Harcourt, PG Davis, DG Tingay

Journal of Paediatrics and Child Health | Published : 2014

DOI: 10.1111/jpc.12398

Abstract

Aim The aim of this study is to compare the high-frequency pressure amplitude (oscillatory change in pressure (ΔP)) and tidal volume (high-frequency tidal volume at the airway opening (VTHF)) delivered by the Dräger VN500 (Drägerwerk Ag & Co., Lübeck, Germany) and the Sensormedics 3100 (SM3100; CareFusion, San Diego, CA, USA) through a range of oscillatory frequencies. Methods In this benchtop study, high-frequency oscillations were applied to an infant test lung at unrestricted set amplitudes. Pressure and flow were measured as a function of frequency, incremented by 1 Hz from 5 to 15 Hz. Measurements were repeated for a range of ventilator settings, and lung resistive and compliance states..

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University of Melbourne Researchers

Peter Davis Author

David Tingay Author

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Grants

Awarded by National Health and Medical Research Council

Funding Acknowledgements

DGT is supported by a National Health and Medical Research Council Clinical Research Fellowship (Grant ID 491286) and the Victorian Government Operational Infrastructure Support Program. PGD is supported by a National Health and Medical Research Council Program Grant (Grant ID 606789) and a National Health and Medical Research Council Practitioner Fellowship (Grant ID 556600).