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Effect of persistent patent ductus arteriosus on mortality and morbidity in very low‐birthweight infants

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Aim:  Because New Caledonia is geographically isolated from the nearest cardiac surgical centre, surgical closure of ductus arteriosus is not performed in very low‐birthweight (VLBW) infants who have a persistent patent ductus in spite of having undergone treatment with ibuprofen. This study aimed at investigating the possible effect of persistent patent ductus in VLBW infants.

Methods:  The study included 177 VLBW infants born at 25–31 weeks of gestation from January 2006 to May 2011. Mortality and major morbidities were compared between infants with a persistent patent ductus (n = 33) and those without it (n = 104). Statistical associations between potential neonatal risk factors and significant morbidities were identified using multivariate regression analyses.

Results:  Rates of mortality and major morbidities, including the rate of bronchopulmonary dysplasia, necrotizing enterocolitis, intraventricular haemorrhage grades I–II and III–IV, periventricular leucomalacia, late‐onset infections and failure of hearing screening, were insignificantly higher in VLBW infants with a persistent patent ductus than in those without it.

Conclusion:  This study adds further evidence that persistent patent ductus arteriosus has no significant effect on mortality and morbidity in VLBW infants born at ≥25 weeks’ gestational age.
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Document Type: Research Article

Affiliations: 1: Neonatal Intensive Care Unit, Territorial Hospital Centre, New Caledonia, France 2: Department of Paediatrics, University Hospital Centre, Reims, France 3: Neonatal Intensive Care Unit, University Hospital Centre, Tours, France

Publication date: 2012-04-01

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