A 2 parameter model of lung mechanics to predict volume response and optimise ventilator therapy in ARDS

Author: Sundaresan, A.; Hann, C.E.; Chase, J.G.; Yuta, T.; Shaw, G.M.

Date: 2009

Publisher: University of Canterbury. Electrical and Computer Engineering, University of Canterbury. Mechanical Engineering

Type: Conference Contributions - Other

Link to this item using this URL: http://hdl.handle.net/10092/4651


A majority of patients admitted to the Intensive Care Unit (ICU) require some form of respiratory support. In the case of Acute Respiratory Distress Syndrome (ARDS), the patient often requires full intervention from a mechanical ventilator. ARDS is also associated with mortality rates as high as 70%. Despite many recent studies on ventilator treatment of the disease, there are no well established methods to determine the optimal Positive End expiratory Pressure (PEEP) ventilator setting for individual patients [1]. A model of fundamental lung mechanics is developed based on capturing the recruitment status of lung units. The model produces good correlation with clinical data, and is clinically applicable due to the minimal number of patient specific parameters to identify. The ability to use this identified patient specific model to optimize ventilator management and lung volume recruitment is demonstrated. It thus provides a platform for continuous monitoring of lung unit recruitment and capability for a patient.

Subjects: Fields of Research, Field of Research::09 - Engineering::0903 - Biomedical Engineering::090302 - Biomechanical Engineering, Field of Research::11 - Medical and Health Sciences::1102 - Cardiovascular Medicine and Haematology::110203 - Respiratory Diseases, Field of Research::11 - Medical and Health Sciences::1103 - Clinical Sciences::110310 - Intensive Care

Citation: ["Sundaresan, A., Hann, C.E., Chase, J.G., Yuta, T., Shaw, G.M. (2009) A 2 parameter model of lung mechanics to predict volume response and optimise ventilator therapy in ARDS. Cape Town, South Africa: XXII Congress of the International Society of Biomechanics (ISB2009), 5-9 Jul 2009."]

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