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  • Title: [Risk factors for developing pneumothorax in full-term neonates with respiratory distress].
    Author: Girard I, Sommer C, Dahan S, Mitanchez D, Morville P.
    Journal: Arch Pediatr; 2012 Apr; 19(4):368-73. PubMed ID: 22381669.
    Abstract:
    OBJECTIVES: To describe respiratory distress (RD) in full-term neonates hospitalized in the NICU and to determine risk factors in this population for pneumothorax. STUDY DESIGN: Retrospective inclusion for 4 years of full-term neonates hospitalized for RD before the 2nd day of life. Neonates were separated into Group I (RD with no pneumothorax) and Group II (RD with pneumothorax). Data collected from maternal and newborn medical records were obstetrical, perinatal, and postnatal. P<0.05 was set as the significance level. RESULTS: Ninety-six neonates were included. In this population, 64 (66.7%) were male, 45 (46.9%) were born by cesarean section, and 30 (31.3%) by elective cesarean section. Neonatal outcome was 4.6 days of hospital stay, 47.4% odds of mechanical ventilation, and 17.7% of persistent pulmonary hypertension of the neonate (PPHN). A central catheter was needed in 25% of the patients and amine treatment in 3.1%. The number of neonates born by cesarean section was lower as term increased. Those born by cesarean section were more likely to develop PPHN (26.7 vs 9.8%; P=0.03), and those born without labor were more likely to require oxygen (83.3 vs 63.6%; P=0.05). When comparing Group I and Group II (32 neonates), absence of labor (RR 1.5) and birth outside of a level III maternity unit (RR 1.6) were risk factors for pneumothorax. These results were confirmed in multivariate analysis. In Group II, birth before 39 weeks was a risk factor for bilateral pneumothorax (P=0.01). The median length of hospitalization was significantly longer in Group II than in Group I (5.8 days vs 4 days, P=0.03). CONCLUSIONS: RD at term exposes the infant to high morbidity and pneumothorax, especially if born outside of a level III maternity unit and absence of labor.
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