Figure 2
From: High positive end-expiratory pressure: only a dam against oedema formation?
Haemodynamics. Mean arterial pressure (panel A, n = 5), cardiac output (panel B, n = 5), transmural pulmonary arterial pressure (panel C, n = 4) and transmural pulmonary artery occlusion pressure (panel D, n = 4) were recorded at baseline (B), during ventilation with high PEEP and low VT (36 h) and during ventilation with no PEEP (ZEEP) and low VT (18 h). During ventilation with high PEEP, oesophageal pressure at 0 cmH2O of airway pressure was assumed to have changed linearly from the value recorded at B (at 0 cmH2O) to the value recorded at time 0 of the ZEEP phase. P values refer to one-way RM ANOVA (on ranks if appropriate). *P <0.05 vs. B (Holm-Sidak or Dunn's method). B, baseline; PEEP, positive end-expiratory pressure; RM ANOVA, repeated measures analysis of variance; VT, tidal volume; ZEEP, zero end-expiratory pressure.