Related Experiment Video
Updated: Jun 5, 2026
05:25
Extended 78% Hepatectomy in a Mouse Surgical Model
Published on: May 24, 2024
Attention and executive functioning deficits in liver-transplanted children
Tanja Kaller1, Nadine Langguth, Rainer Ganschow
1Institute of Medical Psychology, University Hospital Eppendorf, Hamburg, Germany. t.kaller@uke.uni-hamburg.de
Transplantation
|January 4, 2011
Summary
Pediatric liver transplant recipients often experience attention and executive function deficits, impacting cognitive abilities. Early developmental screening is crucial for these children to address potential issues.
Area of Science:
- Pediatric gastroenterology and hepatology
- Neurodevelopmental pediatrics
- Transplant medicine
Background:
- Liver transplantation in children is associated with an elevated risk of developmental challenges.
- Understanding the specific cognitive deficits post-transplantation is essential for targeted interventions.
Purpose of the Study:
- To investigate attention and executive functioning in pediatric liver transplant recipients.
- To explore the relationship between cognitive performance, intelligence, and disease-related variables.
Main Methods:
- A monocentric, cross-sectional study involving 137 children (mean age at transplantation 3.4 years, current age 10.2 years).
- Assessment of attention and executive functioning using the Test of Attentional Performance (TAP) and its pediatric version (KITAP).
- Evaluation of intelligence using the Wechsler Intelligence Scale for Children (WISC-III) and Kaufman Assessment Battery for Children (KABC).
Main Results:
- Children generally scored in the lower normal range on most TAP/KITAP subscales, with significantly below-average reaction times, errors, and omissions.
- Notable deficits were observed in sustained attention (47%) and working memory (38%).
- Performance on attention and executive function tasks correlated significantly with intelligence scores, with slower reaction times linked to lower IQ. Disease duration, age at transplantation, type of donation, and sex influenced reaction times.
Conclusions:
- Liver-transplanted children are at risk for developmental deficits in attention and executive functioning, particularly in intrinsic alertness and working memory.
- These deficits may impair the initiation, sustenance, and control of actions.
- Comprehensive developmental screening is recommended early after pediatric liver transplantation.
Related Concept Videos
01:22Effect of Hepatic Disease on Pharmacokinetics: Pathophysiologic Assessment and Liver Function Test
In clinical practice, the direct measurement of hepatic blood flow to evaluate liver function presents significant challenges due to the intricate and specialized nature of the necessary techniques. Consequently, healthcare professionals often rely on empirical estimates derived from thorough patient examinations and liver function tests to gauge liver health. Among the tools at their disposal, the Child–Pugh and MELD scoring systems stand out for their ability to categorize and assess the...
01:29Hepatic Encephalopathy
DefinitionHepatic encephalopathy is a reversible neurologic syndrome that results from advanced liver dysfunction or portosystemic shunting. It leads to disturbances in cognition, behavior, and motor function due to the brain’s exposure to gut-derived toxins that the liver fails to detoxify.EtiologyThis condition develops either in the setting of acute fulminant hepatitis or progressively during chronic liver disease, such as cirrhosis and portal hypertension. Portosystemic shunting—including...
01:30Attention-Deficit/Hyperactivity Disorder
Attention-deficit/hyperactivity disorder (ADHD) is a neurodevelopmental disorder characterized by persistent inattention, hyperactivity, and impulsivity. It affects approximately 5-8% of children globally, with around 60-70% of cases persisting into adulthood. ADHD has significant implications for educational attainment, social interactions, and occupational success.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.
01:26Effect of Hepatic Disease on Pharmacokinetics: Drug Dosing and Hepatic Blood Flow
Chronic liver disease significantly impacts drug metabolism due to alterations in hepatic blood flow and enzyme accessibility. This disruption affects the body's pharmacokinetics—the movement and processing of drugs within the system. Key enzymes crucial for metabolizing medications become less accessible, changing how drugs are processed and utilized. Furthermore, liver disease influences the synthesis of plasma proteins, such as albumin and globulins, which play critical roles in drug binding...
01:28Kidney Transplant I: Introduction
A kidney transplant is a surgical approach that involves replacing a non-functioning kidney with a healthy one from a donor. This procedure is often a treatment option for end-stage renal disease (ESRD) patients. The method requires careful recipient selection, including evaluating various medical and psychosocial factors. These criteria vary between transplant centers but generally include assessments of the patient's overall health, adherence to medical recommendations, and lifestyle...