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Acta Paediatr. 2010 Jul;99(7):978-92. doi: 10.1111/j.1651-2227.2010.01846.x. Epub 2010 Apr 26.

Incidence of and risk factors for neonatal morbidity after active perinatal care: extremely preterm infants study in Sweden (EXPRESS).

Abstract

AIMS:

The aim of this study was to determine the incidence of neonatal morbidity in extremely preterm infants and to identify associated risk factors.

METHODS:

Population based study of infants born before 27 gestational weeks and admitted for neonatal intensive care in Sweden during 2004-2007.

RESULTS:

Of 638 admitted infants, 141 died. Among these, life support was withdrawn in 55 infants because of anticipation of poor long-term outcome. Of 497 surviving infants, 10% developed severe intraventricular haemorrhage (IVH), 5.7% cystic periventricular leucomalacia (cPVL), 41% septicaemia and 5.8% necrotizing enterocolitis (NEC); 61% had patent ductus arteriosus (PDA) and 34% developed retinopathy of prematurity (ROP) stage > or =3. Eighty-five per cent needed mechanical ventilation and 25% developed severe bronchopulmonary dysplasia (BPD). Forty-seven per cent survived to one year of age without any severe IVH, cPVL, severe ROP, severe BPD or NEC. Tocolysis increased and prolonged mechanical ventilation decreased the chances of survival without these morbidities. Maternal smoking and higher gestational duration were associated with lower risk of severe ROP, whereas PDA and poor growth increased this risk.

CONCLUSION:

Half of the infants surviving extremely preterm birth suffered from severe neonatal morbidities. Studies on how to reduce these morbidities and on the long-term health of survivors are warranted.

PMID:
20456261
[PubMed - indexed for MEDLINE]
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