Long-Term Neurodevelopmental Outcomes and Prognostic Factors in Neonates with Hypoxic-Ischemic Encephalopathy

Area of Science:

• Neonatal Medicine
• Neuroscience
• Pediatrics

Background:

• Hypoxic-ischemic encephalopathy (HIE) is a leading cause of neonatal mortality and long-term disability.
• Effective early prognostic markers are crucial for managing HIE and planning patient follow-up.
• Therapeutic hypothermia is standard care, but predicting outcomes remains challenging.

Purpose of the Study:

• To evaluate long-term neurodevelopmental outcomes in neonates with HIE treated with therapeutic hypothermia.
• To identify early prognostic factors associated with adverse outcomes in HIE.

Main Methods:

• Retrospective cohort study of 99 neonates with HIE (gestational age ≥ 35 weeks).
• Data collected: clinical, laboratory, neurophysiological, neuroimaging, and multiorgan dysfunction indicators.
• Neurodevelopmental outcomes assessed at 18-24 months; multivariable logistic regression used for analysis.

Main Results:

• 18.2% of neonates experienced death or severe neurodevelopmental impairment.
• Higher lactate levels, lower 5-min Apgar scores, and renal dysfunction predicted adverse outcomes.
• Multiorgan dysfunction and abnormal neurophysiological/neuroimaging findings were significantly associated with poor outcomes.

Conclusions:

• Early assessment of biochemical markers, neurological status, and organ function is vital for predicting HIE outcomes.
• A multidimensional prognostic approach can enhance risk stratification for targeted interventions.
• Identifying high-risk neonates early can improve long-term neurodevelopmental support.