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Annals of Intensive Care
Fig. 4 | Annals of Intensive Care

Fig. 4

From: Use of airway pressure-based indices to detect high and low inspiratory effort during pressure support ventilation: a diagnostic accuracy study

Fig. 4

Among low, intermediate, and high inspiratory effort classification groups according to the criteria of inspiratory muscle pressure (Pmus) and Pmus–time product (PTPmus) per minute, a significant difference was found in the negative airway pressure generated during the first 100 ms (P0.1) against an end-expiratory airway occlusion (A and B), the maximal negative swing of airway pressure (∆Pocc) against an end-expiratory airway occlusion (C and D), and pressure muscle index (PMI) (E and F). Data are shown as median and interquartile range. *Significantly higher than the low effort group, †significantly higher than the intermediate effort group

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