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Use and timing of surfactant administration: impact on neonatal outcomes in extremely low gestational age infants born in Canadian Neonatal Intensive Care Units.

BACKGROUND: Use, timing and doses of surfactant in preterm infants are variable in practice in modern NICUs.

OBJECTIVE: The objective of this study is to explore the association between use and timing of surfactant administration and common neonatal adverse outcomes in preterm infants with gestational age (GA) < 28 weeks.

MATERIAL AND METHODS: Neonates admitted to a participating Canadian Neonatal Network NICU between 2013 and 2015 were studied. Infants were divided into three groups based on surfactant administration: none, early (within 30 min of life), and late surfactant (>30 min). The primary outcome was a composite of ≥2 predefined outcomes: bronchopulmonary dysplasia (BPD), retinopathy of prematurity (ROP) and severe neurological injury (intraventricular hemorrhage or intraventricular hemorrhage (IVH) grade III/IV ± periventricular leukomalacia).

RESULTS: Of 2512 eligible neonates, 430 were in the early, and 1228 were in the late surfactant group. There was no difference in the primary outcome (p = .88). There was a slightly lower risk of late onset sepsis [25% versus 29%, adjusted odds ratio (aOR): 0.8; 95% CI: 0.6-0.9] and ROP (12.4 versus 15%, aOR: 0.7; 95% CI: 0.5-0.9) in the early surfactant group.

CONCLUSIONS: In preterm neonates, early administration of surfactant within 30 min of life was not associated with an increased risk of the primary composite outcome, but did have decreased rates of late onset sepsis and ROP.

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