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Neonatal fellowship. Neonatal pneumopericardium: successful treatment with nitrogen washout technique.

Pneumopericardium in the neonate is a rare event but is associated with significant morbidity and mortality. We describe a neonate with mild respiratory distress and cardiovascular compromise after delivery and resuscitation. A large isolated pneumopericardium was diagnosed. Treatment with an oxygen hood (FiO2 1.00) resulted in a complete resolution of the pneumopericardium within 12 hours.