Fig. 2From: Pressure Support Ventilation (PSV) versus Neurally Adjusted Ventilatory Assist (NAVA) in difficult to wean pediatric ARDS patients: a physiologic crossover studyPatent tracings. The Images show patient tracing during Pressure Support Ventilation (PSV) and Neurally Adjusted Ventilatory Assist (NAVA) trials. From top to bottom are represented: electrical activity of diaphragm (Edi), Flow and Airway Pressure tracings. The circles highlight the wasted efforts, while the arrows indicate the Edi signalBack to article page