Blood gas parameters following 15 minutes of injurious ventilation. The alveolar-arterial difference in oxygenation (AaDO2) (A), oxygen saturation (SaO2) (B), fraction of inspired oxygen (FiO2) (C), arterial pH (pHa) (D) and partial pressure of CO2 in arterial blood (PaCO2) (E) in preterm lambs at 132 days of gestation resuscitated at birth using an injurious ventilation strategy then ventilated gently for 120 minutes. Values are mean ± SEM. The black bar indicates 15 min of ventilation with 20 mL/kg VT and 0 cmH2O of positive end-expiratory pressure. The asterisks (*) represent values significantly different (p < 0.05) to the initial (5 min) time point.