Long-term neurodevelopmental outcomes in children with hypoplastic left heart syndrome.

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.