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Fig. 1 | Critical Care

Fig. 1

From: Elastance-derived transpulmonary pressure may overestimate the risk of overdistension in severely obese patients

Fig. 1

Results of the PEEP titration. A collapse indices. Left Y axis, green curve: collapse determined by EIT. Right Y axis, blue curve: end-expiratory transpulmonary pressure. Blue-dashed horizontal line indicates 0 cmH2O. B Overdistension indices. Left Y axis, orange curve: overdistension determined by EIT. Left Y axis, red curve: transpulmonary driving pressure (ΔPL). Right Y axis, blue curve: end-inspiratory, elastance derived transpulmonary pressure (PL, end-insp, ER); Right Y axis, green curve: plateau pressure (PPLAT). Blue horizontal-dashed line indicates 25 cmH2O. On each graph, green vertical-dashed line indicates airway opening pressure; blue vertical-dashed line indicates the highest set PEEP with elastance derived transpulmonary pressure < 25 cmH2O; grey vertical-dashed line indicates set PEEP with lowest transpulmonary driving pressure; red vertical-dashed line indicates the lowest level of set PEEP associated with positive end-expiratory transpulmonary pressure, and the lowest level of set PEEP associated with minimal collapse by EIT (defined as collapse < 1%)

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