Barotrauma-associated posterior tension pneumomediastinum, a rare cause of cardiac tamponade in a ventilated neonate: a case report and review of the literature.

UNLABELLED: Ventilation-associated neonatal barotrauma comprises a spectrum of conditions including pneumothorax, pulmonary interstitial emphysema, pneumopericardium and pneumomediastinum. Whilst pneumothorax is common, mediastinal and particularly posterior mediastinal air collections are rare. We report the case of a neonate, presenting with life threatening pericardial tamponade secondary to posterior tension pneumomediastinum. The infant was successfully resuscitated with an emergency left lateral thoracotomy and chest drain insertion. We believe this to be the first such case reported in the literature. We discuss aspects of pathophysiology, diagnosis and management relating to posterior pneumomediastinum.
CONCLUSION: Posterior pneumomediastinum is rare, but can potentially cause fatal tamponade. Such cases must be managed in a tertiary centre where cardiology and surgical expertize are available.