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Intensive Care Medicine Experimental
Fig. 5 | Intensive Care Medicine Experimental

Fig. 5

From: Positive end-expiratory pressure limits inspiratory effort through modulation of the effort-to-drive ratio: an experimental crossover study

Fig. 5

Spontaneous effort ratio. The mean spontaneous effort ratio (SER) is seen in relation to the PEEP level. The SER describes the proportion of the effort by the patient (the esophageal driving pressure (ΔPes)), in relation to the total transpulmonary driving pressure (ΔPL). A SER decrease was seen in relation to increased PEEP. The black dots represent incremental PEEP levels (0 to 15 cmH2O), and the circles represent the decremental PEEP levels (12 to 0 cmH2O). The trend line and regression equation were calculated using the mean values pooled from the incremental and decremental PEEP levels. * = significantly different from the initial PEEP level 0 cmH2O (p < 0.05 after Bonferroni correction) (significance displayed for incremental PEEP levels only)

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