Objective: The study aims to assess the impact on neurodevelopmental outcomes of a prolonged hemodynamically significant patent ductus arteriosus (PDA) after a conservative treatment.
Study Design: This involves the study of two cohorts of preterm infants 23 to 29 weeks gestation, before ( = 29) and after ( = 54) a conservative approach of PDA. We compared survival, major outcomes, and neurodevelopmental impairment (NDI) at 2 years and analyzed NDI in the conservative cohort according to the duration of the PDA.
Results: Conservative cohort received less medical (31.5%) and surgical treatment (7.4%) and had more days of PDA (59 days in 24-26 weeks and 22 days in 27-29 weeks; < 0.001) in comparison with control cohort (19 days in 24-26 weeks and 11 days in 27-29 weeks; = 0.688). Mortality, survival-without-morbidity at discharge, and NDI at 2 years were similar between the two groups ( = 0.732). In the multivariate analysis PDA >28 days was not related to worse outcomes at discharge ( = 0.296) or less survival-without-NDI at 2 years ( = 0.498).
Conclusion: Until randomized trials prove the benefit of attempting to close the PDA with ibuprofen in the first week of life, conservative management may be a reasonable option.
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