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Table 2 Respiratory variables presented as mean ± standard deviation

From: Respiratory and haemodynamic changes during decremental open lung positive end-expiratory pressure titration in patients with acute respiratory distress syndrome

  T0 TOLP
PH 7.22 ± 0.2 7.22 ± 0.3
PaO2/FiO2 (mmHg) 120 ± 59 146 ± 64a
PaCO2 (mmHg) 58 ± 22 53 ± 18
Peak inspiratory pressure (cmH2O) 32 ± 3 29 ± 3a
PEEP (cmH2O) 14 ± 3 14 ± 3
Dynamic compliance (ml/cmH2O) 23 ± 5 27 ± 6a
Tidal volume (ml/kg) 5.4 ± 0.8 5.6 ± 0.7
Respiratory rate (breaths/min) 19 ± 3 19 ± 3
  1. aP < 0.05 compared with T0.
  2. FiO2 = fraction of inspired oxygen; PaCO2 = partial pressure of arterial carbon dioxide; PaO2 = partial pressure of arterial oxygen; PEEP = positive end-expiratory pressure; T0 = time at baseline; TOLP = time at open lung-positive end-expiratory pressure.