[Alveolar capillary dysplasia as a cause of failure in treatment of a neonate with pulmonary persistent hypertension of the newborn - case report].

A patient with severe persistent pulmonary hypertension of the newborn (PPHN) due to alveolar capillary dysplasia, congenital (ACD), is presented. In the treatment, apart from standard methods, high frequency oscillatory ventilation (HFOV), inhaled nitric oxide and activated C protein have been applied. In spite of treatment the patient died and post-mortem diagnosis was based on lung histopathology examination.