Table 1 Inclusion and exclusion criteria for participation {10}

▪ Infants born with a congenital diaphragmatic hernia at a gestation age of more than 34 weeks

▪ Known chromosomal anomaly

▪ Cardiac anomalies expected to require corrective surgery in the first 60 days of birth

▪ Renal anomalies associated with oligohydramnios

▪ Skeletal deformities impeding lung or thoracic development

▪ Severe anomalies of the central nervous system. Including neurological trauma or raised intracranial pressure

▪ Neuromuscular blocking agent use

▪ Contraindication to nasogastric tube insertion

▪ Nitric oxide requirement

▪ FiO₂ greater than 80% at the end of the ventilatory support tolerance trial