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Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
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Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats

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Peripartum hypoxic risk and cognitive outcome: a study of term and preterm birth children at early school age

C P Stevens1, S Raz, C J Sander

  • 1Department of Psychology, The University of Memphis, Tennessee 38152-6400, USA. sarahraz@memphis.edu

Neuropsychology
|October 20, 1999
PubMed

Insights

Perinatal hypoxic risk, measured by arterial pH at birth, significantly impacts children's intellectual development. Even mild acidotic ranges show a dose-response relationship with cognitive outcomes in early school years.

Area of Science:

  • Neonatal research
  • Developmental pediatrics
  • Perinatal medicine

Background:

  • Perinatal hypoxia is a known risk factor for adverse neurological outcomes.
  • Understanding the specific impact of varying degrees of acidemia on cognitive development is crucial.

Purpose of the Study:

  • To investigate the relationship between perinatal hypoxic risk and intellectual outcome in children.
  • To determine if gestational maturity influences this relationship.

Main Methods:

  • Studied 48 children with arterial pH between 7.1 and 7.3 within 3 hours of delivery.
  • Assessed intellectual outcome in early school-age children.
  • Analyzed the correlation between arterial pH, gestational maturity, and cognitive performance.

Main Results:

  • Arterial pH was significantly related to intellectual performance.
  • Gestational maturity did not significantly predict intellectual outcome.
  • A dose-response relationship was observed between arterial pH and cognitive performance, even within a restricted, moderately acidotic range.

Conclusions:

  • Perinatal arterial pH is a significant predictor of early school-age intellectual outcome.
  • Even mild to moderate perinatal acidemia can have a discernible impact on cognitive development.
  • The findings highlight the importance of monitoring and managing fetal/neonatal acid-base balance.

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