Patent ductus arteriosus in preterm infants born at 23–24 weeks' gestation: Should we pay more attention?
2019
Abstract Background Infants born at 23–24 weeks' gestation have the highest risk of developing a hemodynamically significant patent ductus arteriosus (hsPDA), that is refractory to pharmacological closure requiring surgical ligation. Thus, these patients might have the greatest benefits from hsPDA closure, although previous studies on PDA closure were not focused on this population. Aim To compare the occurrence of hsPDA, failure rate of the first course of ibuprofen in closing hsPDA, and need of surgical closure in infants born at 23 +0 –24 +6 weeks' gestation to those in infants born at 25 +0 –28 +6 weeks' gestation. Study design This is a retrospective multicenter study including infants born at 23 +0 –28 +6 weeks of gestation admitted to the neonatal care units from January 2013 to December 2017. All infants underwent echocardiographical assessment for hsPDA diagnosis and eventually pharmacological treatment, and surgical closure. Results We studied a total of 842 infants of which 562 (67%) developed a PDA. Among those with PDA, 511 (91%) received a pharmacological treatment for a hsPDA. We found that a hsPDA occurred in 70% (106/151) of infants born at 23–24 weeks and in 59% (405/691) of infants born at 25–28 weeks of gestation (P Conclusions Among extremely preterm infants, infants born at 23–24 weeks of gestation have the highest risk of developing a hsPDA refractory to pharmacological treatment requiring surgical closure. Our findings support the need of individualized more careful strategies for hsPDA management in this special population.
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