Identification of the model of the respiratory system in high-frequency oscillatory ventilation

Mechanical ventilation is used during respiratory failure in many patients. High-frequency oscillatory ventilation is used as a rescue therapy at adult patients. High-frequency ventilation has minimum monitoring and even tidal volume is not routinely measured. Models of the respiratory system can contribute to better understanding about principle of high-frequency oscillatory ventilation. The identification of simple RLC model is described in the study and effect of lung compliance upon tidal volume and alveolar pressure is discussed. It was shown that reduced lung compliance has a minimal effect upon tidal volume whereas it significantly affects an amplitude of alveolar pressure.