An Overview of Adaptive Support Ventilation (ASV)

ASV, a form of closed loop ventilation, utilizes a pressure-targeted approach to optimize the balance between tidal volume and respiratory frequency based on Otis-predicted lung mechanics. By adopting a pressure ventilation format, ASV establishes a ventilatory pattern that minimizes the work of breathing, auto PEEP, and peak airway pressure. Although ASV shares similarities in gas delivery format with pressure control ventilation and pressure-regulated volume control, it stands out with its algorithmic control of the ventilatory pattern. ASV automatically determines the ideal tidal volume and respiratory rate to ensure that peak pressure remains below the target level.