PMID: 8584379Feb 1, 1996Paper

Chorioamnionitis and early lung inflammation in infants in whom bronchopulmonary dysplasia develops

Pediatrics
K L WatterbergS Murphy

Abstract

The development of bronchopulmonary dysplasia (BPD) often has been attributed to injury from mechanical ventilation and supplemental oxygen. Early lung inflammation in infants with BPD has been thought to be secondary to these factors. The purpose of this study was to evaluate whether preexisting (prenatal) inflammation may be a primary causative factor in the development of BPD. Intubated newborns of less than 2,000 g birth weight were prospectively enrolled. The presence or absence of chorioamnionitis was documented. Lung inflammation was evaluated on days 1, 2, and 4 of intubation by assaying concentrations of interleukin 1 beta (IL-1 beta), thromboxane B2, leukotriene B4, and prostaglandin E2 in tracheal lavages. Infants in whom BPD developed were compared with those in whom it did not using these measures. Fifty-three infants were enrolled; 41 survived. Thirty-eight had respiratory distress syndrome; 15 were intubated for other diagnoses. Infants prenatally exposed to chorioamnionitis were less likely to present with respiratory distress syndrome; however, chorioamnionitis was significantly associated with both the presence of IL-1 beta from the first day of intubation and the development of BPD. Tracheal lavage concentrat...Continue Reading

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