ASV focuses on simplification of mechanical ventilation. This means:
1. Eliminating separate modes for passive and active patients
2.Reducing controls relevant for CO2 elimination to just %MinVol
3.Adding direct access to controls relevant for oxygenation (PEEP/CPAP and Oxygen)
ASV maintains an operator-preset minimum minute volume independent of the patient‘s activity. The breathing pattern (tidal volume, rate, and inspiratory time) is calculated, based on the assumption that the optimal breathing pattern results in:
1.The least work of breathing
2.The least amount of ventilator-applied inspiratory pressure