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[Neurologic outcomes for infants weighing less than 1,000 grams at birth]
1Division of Pediatric Neurology, Osaka Medical Center and Research Institute for Maternal and Child Health.
Insights
Long-term follow-up of infants weighing less than 1,000g revealed that about one-third experienced significant neurologic abnormalities. This study highlights the persistent challenges faced by extremely low birth weight survivors.
Area of Science:
- Neonatal neurology
- Developmental pediatrics
- Longitudinal cohort studies
Context:
- Evaluating neurologic outcomes in extremely low birth weight (ELBW) infants is crucial for understanding long-term health.
- This study examines a cohort of 107 ELBW infants admitted between 1981 and 1986.
- Follow-up extended for 20-39 years, providing extensive data on developmental trajectories.
Purpose:
- To assess the long-term neurologic sequelae in infants with birth weights under 1,000 grams.
- To identify the prevalence of various neurologic conditions, including cerebral palsy and intellectual disability, in this vulnerable population.
- To determine the proportion of ELBW survivors with persistent major or minor neurologic abnormalities.
Summary:
- The study followed 107 infants with birth weights <1,000g for 20-39 years.
- Diagnoses included normal development (71), cerebral palsy (13), mental retardation (11), borderline intelligence (11), and spinal palsy (1).
- Approximately one-third of the cohort exhibited significant neurologic abnormalities, with epilepsy noted in 3 cases of cerebral palsy.
Impact:
- Findings underscore the critical need for ongoing neurodevelopmental surveillance and early intervention for ELBW infants.
- This research contributes to understanding the long-term burden of neurologic deficits in extremely preterm survivors.
- Results inform clinical practice and parental counseling regarding the potential long-term outcomes for very low birth weight neonates.
Abstract:
We evaluated the neurologic outcomes of 107 infants with birth weights of less than 1,000g who had been admitted to our hospital from October 1981 to March 1986. Their outcomes were confirmed during a follow-up period of 20-39 years (mean: 75 years). The diagnoses were normal in 71, cerebral palsy in 13, mental retardation in 11, borderline intelligence in 11, and spinal palsy due to birth injury in 1. Only 3 infants with cerebral palsy had developed epilepsy. Among the infants with birth weights of less than 1,000g hospitalized in this tertiary care center, about one-third still had some major or minor neurologic abnormalities.