[Pathogenic factors in bronchopulmonary dysplasia].

This paper analyses the main pathogenic and prognostic factors of BPD. A study was made of 60 premature babies who were ventilated for a period of more than 72 hours. The control group consisted of the 37 premature babies who did not develop BPD and the study group of the remaining 23 who, 28 days after birth, showed respiratory difficulties, a compatible radiography of the thorax and FiO2 requirements above 0.21. The severity of the BDP in the neonatal period was quantified by means of the clinical and radiological criteria of Toce and a special scale was applied to its evolutive aspects.