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Seizures in extremely low birth weight infants are associated with adverse outcome

Alexis S Davis1, Susan R Hintz, Krisa P Van Meurs

  • 1Division of Neonatal-Developmental Medicine, Stanford University, Stanford, CA, USA.

The Journal of Pediatrics
|June 15, 2010
PubMed

Insights

Clinical seizures in extremely low birth weight (ELBW) infants are linked to a higher risk of death or neurodevelopmental impairment (NDI). This association remains significant even after accounting for other risk factors in ELBW infants.

Area of Science:

  • Neonatal neurology
  • Perinatal medicine
  • Developmental pediatrics

Background:

  • Extremely low birth weight (ELBW) infants face significant risks for neonatal clinical seizures.
  • Neonatal seizures are associated with adverse outcomes, but independent risk factors require further investigation.
  • Understanding these risks is crucial for improving long-term neurodevelopmental outcomes in vulnerable infants.

Purpose of the Study:

  • To identify risk factors for neonatal clinical seizures in ELBW infants.
  • To determine the independent association between neonatal seizures and death or neurodevelopmental impairment (NDI) in ELBW infants.
  • To provide evidence for targeted interventions and improved care for ELBW infants.

Main Methods:

  • Retrospective study of 6499 ELBW infants (401-1000 g) surviving to 36 weeks postmenstrual age (PMA).
  • Comparison of infants with and without clinical seizures during initial hospitalization.
  • Multivariate logistic regression analysis to assess the independent association of seizures with late death or NDI, controlling for confounders.

Main Results:

  • Infants with clinical seizures exhibited higher rates of neonatal morbidities, including severe intraventricular hemorrhage, sepsis, meningitis, and cystic periventricular leukomalacia.
  • Seizure survivors had increased likelihood of NDI or moderate-severe cerebral palsy at 18-22 months corrected age.
  • Clinical seizures were independently associated with late death or NDI (OR, 3.15; 95% CI, 2.37-4.19) after adjusting for confounders.

Conclusions:

  • Neonatal clinical seizures in ELBW infants are a significant independent risk factor for adverse neurodevelopmental outcomes.
  • ELBW infants experiencing seizures face a substantially increased risk of death or long-term neurodevelopmental impairment.
  • These findings underscore the importance of early identification and management of seizures in ELBW infants to mitigate long-term consequences.
Abstract

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