Alterations in motor functional connectivity in Neonatal Hypoxic Ischemic Encephalopathy

Area of Science:

• Neuroscience
• Pediatric Neurology
• Medical Imaging

Background:

• Neonatal hypoxic-ischemic encephalopathy (HIE) is a major cause of pediatric neurological deficits.
• HIE results from birth asphyxia leading to global brain injury.

Purpose of the Study:

• To investigate functional brain disruptions in neonates with HIE.
• To compare motor network connectivity in HIE neonates versus healthy controls using rs-fMRI.

Main Methods:

• Resting state functional magnetic resonance imaging (rs-fMRI) was employed.
• Functional connectivity was assessed in primary and association motor areas.
• 16 HIE neonates and 11 healthy controls were included.

Main Results:

• Reduced intra-hemispheric and inter-hemispheric resting-state functional connectivity (rs-FC) in motor regions was observed in HIE neonates.
• HIE neonates showed increased rs-FC between motor areas and other cortical regions (frontal, temporal, parietal).
• Decreased rs-FC between motor regions and the cerebellum was noted in the HIE group.

Conclusions:

• Preliminary findings indicate disrupted functional communication within the motor network in HIE neonates.
• Further research with larger datasets is needed to validate these rs-fMRI findings.
• rs-fMRI may offer prognostic value for HIE, complementing clinical and conventional MRI assessments.