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Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
[Developmental problems in prematures]
Anne M De Grauw1,2, Pauline E Van Beek3, Aleid G Leemhuis4
1Hagaziekenhuis, locatie Juliana Kinderziekenhuis, den Haag, afd. Neonatologie.
Insights
Premature infants born at 24-26 weeks
Area of Science:
- Neonatalogy and Developmental Pediatrics
- Public Health and Epidemiology
Background:
- The EPIPAGE-2 study followed a cohort of extremely preterm infants.
- Understanding long-term outcomes for premature infants is crucial for clinical practice and public health.
- Socio-economic status (SES) is a known factor influencing child development and participation in studies.
Purpose of the Study:
- To assess the neurodevelopmental outcomes at 5.5 years of age for children born prematurely (24-34 weeks' gestational age).
- To investigate the impact of gestational age and socio-economic status on the outcomes of preterm infants.
- To identify specific challenges and needs for follow-up programs for preterm infants, particularly those from lower SES backgrounds.
Main Methods:
- Longitudinal cohort study of premature infants born between 24 and 34 weeks' gestational age.
- Neurodevelopmental assessments at 5.5 years of corrected age.
- Statistical analysis accounting for socio-economic status and imputation of missing data.
Main Results:
- Survival rates increased with higher gestational age.
- Among survivors born at 24-26 weeks' gestational age, 75% had no or mild impairment at 5.5 years.
- Mild cognitive impairment and school problems were common across all gestational age groups.
- Lower socio-economic status was associated with increased risk of developmental impairment.
Conclusions:
- Gestational age and socio-economic status are critical determinants of neurodevelopmental outcomes in preterm infants.
- Mild cognitive impairments and school difficulties are prevalent in this population.
- Targeted follow-up programs and interventions are needed, especially for preterm infants from lower socio-economic backgrounds.
Abstract:
The French EPIPAGE-2 study evaluated a large group of premature born children (24-34 weeks' gestational age (GA))) at age 5.5 years. Outcome information of the whole cohort was presented after careful imputation including/using the variable socio-economic-status (SES), because participation rate improved with increasing SES. Survival improved with increasing GA. Survival without moderate or severe impairment was 20% in children born at 24-26 weeks' GA, but among the survivors 75% had no or mild impairment. Mild cognitive impairment rates were comparable and common among all GA groups (25-28%) and thus frequent in prematures. School problems were also common. In addition to prematurity, SES is an important risk factor for developmental impairment. Follow-up programs for premature infants beyond 30 weeks' GA are less common and may need extra attention in low SES families. Future studies should focus on both prevention of prematurity and programs to improve outcome.
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