Neonatal Hypoglycemia and Long-Term Pediatric Neurodevelopmental Outcomes: A Systematic Review.

Abstract

Neonatal hypoglycemia is a common metabolic disturbance with potentially significant implications for neurodevelopment, yet the long-term consequences are not completely understood. This systematic review synthesises evidence from 13 studies to evaluate the association between neonatal hypoglycemia and neurodevelopmental outcomes in children, examining the roles of severity, timing, and clinical management. A comprehensive search across PubMed, Embase, Scopus, and Web of Science yielded 260 records, with 13 studies meeting inclusion criteria after rigorous screening. Methodological quality was assessed using the Newcastle-Ottawa Scale (NOS), revealing that seven studies had a low risk of bias, while six demonstrated a moderate risk. Findings indicate that severe hypoglycemia, particularly when early-onset or recurrent, is consistently associated with adverse outcomes, including motor dysfunction, cognitive delays, and executive function impairments. In contrast, milder hypoglycemia showed no consistent association with neurodevelopmental deficits when promptly treated. Heterogeneity in definitions and assessment methods across studies underscores the need for standardised criteria. The review highlights the importance of vigilant monitoring and targeted intervention for high-risk infants while suggesting that aggressive management of transient hypoglycemia may be unnecessary. Future research should prioritise longitudinal designs, consensus definitions, and exploration of protective factors to refine clinical guidelines and optimise neurodevelopmental outcomes.