The effects of airway resistance and alveolar compliance upon delivered tidal volume during high frequency oscillatory ventilation
Authors:
Zuzana Rožánková 1; Martin Rožánek 1; Marianna Laviola 1; Petr Kudrna 1; Karel Roubík 1
Authors place of work:
Fakulta biomedicínského inženýrství, České vysoké učení technické v Praze, Kladno, Česká Republika
1
Published in the journal:
Lékař a technika - Clinician and Technology No. 3, 2014, 44, 41-44
Category:
Original research
Summary
Mechanical lung ventilation is used for a delivery of the oxygen into the organism and removal of carbon dioxide from the organism in cases where the spontaneous breathing of the patient is inhibited or insufficient. High-frequency oscillatory ventilation is quite different from conventional regimens of mechanical ventilation. High-frequency oscillatory ventilation is used mainly for the patient with severe acute respiratory distress syndrome, however concrete target group of the patient is not clearly defined. The model of the lungs according to its morphological description is designed for studying of the high-frequency oscillatory ventilation. The effect of the mechanical properties of the lungs, airway resistance and alveolar compliance upon the delivery of tidal volume is studied for high-frequency oscillatory ventilation. Resistance of the airways significantly affects the tidal volume in high-frequency oscillatory ventilation whereas the effect of the decrease of the alveolar compliance is almost negligible.
Keywords:
high-frequency oscillatory ventilation, flow resistance, alveolar compliance, tidal volume, lung model
Zdroje
[1] Chan, K. P. W., Stewart, T. E., Mehta, S. High-frequency oscillatory ventilation for adult patients with ARDS. Chest 2007, 131, s. 1907-1916.
[2] Fessler, H. E., Derdak, S., Ferguson, N. D., et al. A protocol for highfrequency oscillatory ventilation in adults: Results from a roundtable discussion. Crit Care Med 2007, 35, s. 1649-1654.
[3] Horsefield, K., Dart, G., Oslon, D. E. Models of the human bronchial tree. Journal of applied Physiology; 1971, vol. 31, pp. 207-217.
[4] Roubík, K., Ráfl, J. Poddajnost a rezistance v rigidních modelech respirační soustavy. Lékař a technika. 2009, roč. 39, č. 1, s. 32-38. ISSN 0301-5491.
[5] Vavřík, D., Hájek, M., Penhaker, M. Měření a vyhodnocení základních ventilačních režimů a poruch v simulačním ventilačním okruhu. Lékař a technika. 2008, roč. 38, s. 191-194. ISSN 0301-5491.
Štítky
BiomedicineČlánok vyšiel v časopise
The Clinician and Technology Journal
2014 Číslo 3
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