Fig. 1
From: Evolution of inspiratory muscle function in children during mechanical ventilation
Example of recorded signals and calculated variables during an occlusion maneuver. Paw denotes airway pressure, Pvent pressure on ventilator circuit, EAdi electrical activity of the diaphragm, NME neuro-mechanical efficiency ratio (defined as ΔPaw divided by EAdimax). A Paw and Pvent over time, with ΔPaw values specified for each breath, dotted arrow shows ΔPawmax. B EAdi over time, with EAdimax values specified for each breath. C NME values for each breath, with the median of all 5 values (NMEoccl) as a dotted line