Fig. 1
From: Low-pressure support vs automatic tube compensation during spontaneous breathing trial for weaning
Method to compute muscular pressure (Pmus) over one breath. Scope mode displays over time the tidal volume (black dashed line), the recorded esophageal pressure (Pes,dyn, black continuous line) and the computed static esophageal pressure (Pes,st gray continuous line) (record from patient #16 in the automatic tube compensation group). At any time Pmus is the distance (black dashed vertical arrow) pertaining to Pes,dyn–Pes,st. Scale in cmH2O in the left Y axis and in liter (l) in the right Y axis. Time scale (1 s) is indicated