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Toddler Neurodevelopmental Outcomes Are Associated With School-Age IQ in Children With Single Ventricle Physiology

Akiko Hiraiwa1, Keijiro Ibuki1, Tomomi Tanaka1

  • 1Department of Pediatrics, Faculty of Medicine, University of Toyama, Toyama, Japan.

Seminars in Thoracic and Cardiovascular Surgery
|November 8, 2019
PubMed

Insights

Preschool neurodevelopment in single ventricle (SV) physiology children predicts later IQ and special education needs. Early assessments can identify children requiring long-term monitoring and support.

Area of Science:

  • Pediatric Cardiology
  • Neurodevelopmental Pediatrics
  • Developmental Psychology

Background:

  • Children with single ventricle (SV) physiology face unique developmental challenges.
  • Long-term neurodevelopmental outcomes and educational needs in this population require further investigation.

Purpose of the Study:

  • To determine if preschool neurodevelopment predicts school-age IQ and special education service requirements in children with SV physiology.
  • To analyze factors associated with neurodevelopmental outcomes and educational needs.

Main Methods:

  • Longitudinal assessment of 35 children with SV physiology using the Bayley Scale of Infant and Toddler Development (BSID) at 3 years and the Wechsler Intelligence Scale for Children (WISC) at 8 years.
  • Evaluation of special education service utilization.
  • Correlation analysis of neurodevelopmental indices (MDI, FSIQ) with clinical factors (birth weight, surgical stage, extracorporeal circulation time, Fontan operation age).

Main Results:

  • Children with SV physiology demonstrated significantly lower MDI and FSIQ scores compared to healthy peers.
  • Preschool MDI moderately correlated with school-age FSIQ (R² = 0.41).
  • 28.6% of children required special education services, with MDI <85 at age 3 significantly predicting this need (53% vs. 10%).
  • Clinical factors like birth weight, surgical stage, extracorporeal circulation time, and age at Fontan operation were associated with neurodevelopmental outcomes and educational needs.

Conclusions:

  • Preschool neurodevelopmental assessments, specifically the MDI, can predict both IQ levels and the need for special education services in school-aged children with SV physiology.
  • Early identification of children with low neurodevelopmental scores is crucial for timely intervention and long-term follow-up.
  • This highlights the importance of comprehensive, long-term neurodevelopmental surveillance for single ventricle survivors.

Keywords:
IQ levelsNeurodevelopmentSchool ageSingle ventricle physiologySpecial education services

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