Spectrum of Neurocognitive Involvement in Children with Liver Disease (ondemand)-Neurocognitive Webinar

Video Transcription

Video Summary

The webinar focused on neurocognitive involvement in children with liver disease and portosystemic shunting. Cristina Padros-Botnieles reviewed the clinical spectrum, arguing that adult hepatic encephalopathy definitions do not adequately capture the developing brain. She presented two pediatric cases showing that children can have elevated ammonia, abnormal MRI/MRS findings, slowed EEG rhythms, and neuropsychological deficits such as attention problems, dyslexia, and school difficulties. Some findings improved after liver transplantation or shunt closure, including normalization of MRI, spectroscopy, and EEG, but neurocognitive recovery was often incomplete. She emphasized early identification, multidisciplinary support, and the need for a pediatric consensus definition and better biomarkers.<br /><br />Sharon DeMauro then discussed mechanisms and presented a juvenile mouse model of carbon tetrachloride-induced hepatic encephalopathy. The model showed liver injury, hyperammonemia, neuroinflammation, and behavioral deficits. After liver recovery, some abnormalities resolved, such as depressive-like behavior, while others, like balance and motor deficits, persisted. Her findings suggest that early-life hepatic encephalopathy may cause long-lasting or irreversible brain effects, and that timing of injury may be critical.<br /><br />Both speakers highlighted major gaps in knowledge, especially the need to understand reversibility, timing, and long-term neurodevelopmental outcomes in children.

Keywords

pediatric hepatic encephalopathy

neurocognitive deficits

portosystemic shunting

hyperammonemia

liver transplantation

MRI spectroscopy

EEG abnormalities

neuroinflammation

neurodevelopmental outcomes