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Cognitive performance in pediatric liver transplant recipients

T Kaller1, N Langguth, F Petermann

  • 1Department of Medical Psychology, University Medical Center Hamburg-Eppendorf, Hamburg, Germany; Center of Clinical Psychology and Rehabilitation, University of Bremen, Bremen, Germany.

American Journal of Transplantation : Official Journal of the American Society of Transplantation and the American Society of Transplant Surgeons
|October 10, 2013
PubMed

Insights

Children undergoing liver transplantation (Ltx) show significant long-term cognitive deficits compared to healthy peers. Primary diagnosis and height at Ltx impact cognitive outcomes, highlighting the need for targeted support.

Area of Science:

  • Pediatric Health
  • Neurodevelopmental Disorders
  • Transplantation Medicine

Background:

  • Cognitive development post-pediatric liver transplantation (Ltx) is not well understood.
  • Cognitive function is vital for development and academic success in children.
  • Long-term cognitive outcomes after Ltx require further investigation.

Purpose of the Study:

  • To assess the prevalence of long-term cognitive impairment in pediatric liver transplant recipients.
  • To compare cognitive performance in children after Ltx with a healthy control group.
  • To identify factors influencing cognitive outcomes in this population.

Main Methods:

  • Cross-sectional, single-center study of 64 pediatric liver transplant patients.
  • Cognitive performance assessed using the revised Wechsler Intelligence Scale IV (WISC-IV).
  • Comparison with an age- and gender-matched control group without chronic health conditions.

Main Results:

  • Liver transplant recipients performed significantly worse in three of four cognitive domains and Total IQ compared to controls.
  • A higher rate of serious cognitive delays (IQ < 70) was observed in Ltx children (9.4% vs. 4.7%).
  • Children with genetic-metabolic diseases showed poorer performance across multiple cognitive indices and Total IQ.

Conclusions:

  • Pediatric liver transplantation is associated with significant long-term cognitive impairment.
  • Primary diagnosis and height percentile at the time of Ltx are critical factors affecting cognitive performance.
  • These findings underscore the importance of monitoring and supporting cognitive development in children post-Ltx.

Keywords:
ChildrenWISC-IVcognitive functionintelligenceliver transplantation

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