Related Experiment Video
Updated: Jan 12, 2026

Author Spotlight: Effect of Left Atrial Ligation on Avian Embryonic Hearts and HLHS Implications
Published on: June 16, 2023
Long-term neurodevelopmental outcomes in children with hypoplastic left heart syndrome
Kholoud Al Jebawi1,2, Jamil Nasrallah1,2, Waseem Sajjad3
1Department of Medicine, Faculty of Medical Sciences, Lebanese University, Beirut, Lebanon.
Insights
Children with hypoplastic left heart syndrome (HLHS) face significant neurodevelopmental challenges after surgical palliation. Early intervention and multidisciplinary care are crucial for improving long-term outcomes in these complex cases.
Area of Science:
- Pediatric Cardiology
- Neurodevelopmental Science
- Congenital Heart Disease Research
Background:
- Hypoplastic left heart syndrome (HLHS) is a severe congenital heart defect requiring complex surgical palliation.
- Children with HLHS are at high risk for long-term neurodevelopmental impairments.
Purpose of the Study:
- To review long-term neurodevelopmental outcomes in children with HLHS post-surgical palliation.
- To identify risk factors, assessment tools, and neuroprotective strategies for HLHS patients.
Main Methods:
- Comprehensive literature review of English articles (2000-2024) from PubMed, Scopus, and Google Scholar.
- Keywords included: hypoplastic left heart syndrome, surgical palliation, neurodevelopmental outcomes, children.
Main Results:
- Children with HLHS exhibit significant risks for cognitive, motor, behavioral, and adaptive deficits.
- Assessment tools like Bayley Scales, MRI, and EEG are vital for monitoring.
Conclusions:
- A multidisciplinary approach and early intervention are critical for managing HLHS neurodevelopmental issues.
- Further research into neuroprotective strategies and perioperative management is needed.
- Emerging strategies like maternal hyperoxygenation require further investigation.
Background:
Hypoplastic left heart syndrome (HLHS) is a severe congenital heart defect requiring complex surgical interventions, including the Norwood, Glenn, and Fontan procedures. This narrative review aims to explore the long-term neurodevelopmental outcomes of children with HLHS following surgical palliation with potential risk factors.
Objectives:
This review synthesizes current evidence on long-term ND outcomes in children with HLHS after surgical palliation and identifies key risk factors, assessment tools, and emerging neuroprotective strategies.
Methods:
A comprehensive literature review was conducted, focusing on the interplay of altered fetal circulation, impaired cerebral oxygenation, and extensive medical interventions on neurodevelopment. We conducted literature search of full-text, peer-reviewed English articles published between 2000 and 2024 using PubMed, Scopus, and Google Scholar with the terms "hypoplastic left heart syndrome," "surgical palliation," "neurodevelopmental outcomes," and "children."
Results:
Evidence indicates that children with HLHS face significant risks for cognitive, motor, behavioral, and adaptive impairments. Assessment tools such as the Bayley Scales of Infant and Toddler Development, MRI, and EEG are essential for early detection and ongoing monitoring.
Discussion:
A multidisciplinary approach involving pediatric cardiology, neurology, and developmental therapy is crucial for managing HLHS and addressing neurodevelopmental issues. Early intervention can improve outcomes, guided by diagnostic tools like MRI, EEG, and the Bayley Scales. There is a need for more research on neuroprotective strategies and perioperative management to reduce brain injury and enhance long-term developmental outcomes in children with HLHS.
Conclusion:
Children with HLHS face significant ND challenges due to a complex interplay of physiological and medical factors. A multidisciplinary approach with early intervention is critical. Emerging strategies, such as maternal hyperoxygenation, merit further investigation regarding their feasibility, cost, and ethical considerations.

