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. 2018 Aug 24;18:124. doi: 10.1186/s12883-018-1132-2

Fig. 1.

Fig. 1

End-expiratory esophageal pressure (PES-EE) measurements at different positive end-expiratory pressure (PEEP) levels. a The absolute values of PES-EE in the responder and non-responder groups. No significant difference was observed between the two groups. b The change of PES-EE during the adjustment of PEEP. The change of PES-EE in the responders was significantly increased compared with that in non-responders, suggesting that more pressure was transmitted to the pleural cavity