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

Table 2 Respiratory variables presented as mean ± standard deviation

	T₀	T_OLP
PH	7.22 ± 0.2	7.22 ± 0.3
PaO₂/FiO₂ (mmHg)	120 ± 59	146 ± 64^a
PaCO₂ (mmHg)	58 ± 22	53 ± 18
Peak inspiratory pressure (cmH₂O)	32 ± 3	29 ± 3^a
PEEP (cmH₂O)	14 ± 3	14 ± 3
Dynamic compliance (ml/cmH₂O)	23 ± 5	27 ± 6^a
Tidal volume (ml/kg)	5.4 ± 0.8	5.6 ± 0.7
Respiratory rate (breaths/min)	19 ± 3	19 ± 3

^aP < 0.05 compared with T₀.
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; T_OLP = time at open lung-positive end-expiratory pressure.

ISSN: 1364-8535