Pierre Robin syndrome and pulmonary hypertension.

Five infants with Pierre Robin syndrome developed evidence of carbon dioxide retention and congestive cardiac failure despite measures to alleviate upper airway obstruction. Investigations included chest radiography, electrocardiography, echocardiography, and cardiac catheterization; pulmonary hypertension was diagnosed. In two cases raised main pulmonary artery pressures of 40 mm Hg and 120 mm Hg were recorded. Relief of upper airway obstruction was achieved by tracheostomy in three cases and nasopharyngeal intubation in two cases, with reversal of signs of cor pulmonale in each. Four patients progressed well with no recurrence of cardiac problems but one died suddenly one month after apparently successful management by tracheostomy.