We develop in the model virtual obstructive patients with adaptative spontaneous breathing to teach mechanical ventilation under pressure support ventilation of COPD patients. We test the mathematical model with the study of Thille et al. that proposed different settings in order to reduced asynchronies with numerous ineffective efforts.
This virtual study demonstrates that our model is realistic regarding respiratory mechanic and asynchrony. SimVA can be used to teach mechanical ventilation in that field of obstructive patients under PSV.
Patient with COPD in Pressure Support Ventilation with ineffective efforts, Pressure assist/PEEP= 17 /5 cmH20 and expiratory cycling 25%. Asynchrony disappeared with higher expiratory cycling (see video for a demo)