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Neurologic-developmental sequelae of chronic renal failure in infancy
Insights
Children with early chronic renal failure and treatment experienced significant developmental delays and reduced head circumference. Early intervention is crucial for better outcomes in pediatric kidney disease.
Area of Science:
- Pediatric Nephrology
- Developmental Neurology
- Clinical Pediatrics
Background:
- Chronic renal failure (CRF) in infancy poses significant risks to neurodevelopment.
- Early intervention with dialysis and transplantation is a critical consideration for affected children.
Purpose of the Study:
- To assess the neurodevelopmental outcomes in children with early-onset CRF treated with early dialysis and transplantation.
- To identify potential factors contributing to unfavorable outcomes in this cohort.
Main Methods:
- Longitudinal study of twelve children with CRF since infancy.
- Evaluation of head circumference, developmental assessments, and cognitive function.
Main Results:
- Nine out of twelve children showed head circumference more than 2 SD below the mean by age 1 year.
- Eight children functioned in the subnormal range developmentally, with four moderately and one severely intellectually disabled.
- Causative factors for neurodevelopmental deficits remain multifactorial, including uremia, malnutrition, and psychosocial deprivation.
Conclusions:
- Early-onset chronic renal failure and its treatment can lead to significant neurodevelopmental impairments.
- The vulnerable period of early brain development necessitates prompt therapeutic interventions to mitigate long-term damage.
- Further research is needed to elucidate the specific contributions of uremia, nutrition, and psychosocial factors to developmental outcomes.
Abstract:
Twelve children who have had chronic renal failure since infancy and underwent early dialysis (mean age 18 months) and early transplantation (mean age 28 months) were studied. Although head circumference in all was within the normal range at birth, by 1 year it was greater than 2 SD below the mean in nine, including six in whom it was greater than 3 SD below the mean. Developmentally, eight children were functioning in the subnormal range; four of these were moderately and one severely mentally retarded. It was not possible to determine whether the unfavorable neurologic-developmental outcome was the result of the toxic effects of uremia, malnutrition, or the associated psychosocial and experiential deprivation related to chronic, severe illness. Even minor insults at this vulnerable stage of brain development may produce permanent damage, and institution of therapy as early as possible may be crucial in obtaining a more favorable outcome.