Optimal neuromonitoring techniques in neonates with hypoxic ischemic encephalopathy

Area of Science:

• Neonatal Neurology
• Neurocritical Care
• Pediatric Neuromonitoring

Background:

• Hypoxic ischemic encephalopathy (HIE) poses significant risks of mortality and neurodevelopmental impairment in neonates.
• Effective neuromonitoring is essential for accurate diagnosis and prognosis in affected infants.
• Therapeutic hypothermia is a standard treatment for neonatal HIE, necessitating precise monitoring strategies.

Purpose of the Study:

• To review current bedside neuromonitoring techniques applicable to neonates with HIE.
• To evaluate the role of continuous monitoring modalities in assessing cerebral function and oxygenation.
• To discuss the integrated use of various neuromonitoring tools for improved outcome prediction.

Main Methods:

• Review of continuous neuromonitoring techniques: continuous electroencephalography (cEEG), amplitude-integrated electroencephalography (aEEG), and near-infrared spectroscopy (NIRS).
• Examination of serial bedside techniques: cranial ultrasound, somatic and visual evoked potentials.
• Consideration of heart rate variability as an adjunct monitoring tool.

Main Results:

• Continuous EEG, aEEG, and NIRS provide distinct yet complementary data on cerebral function and oxygen utilization.
• Serial techniques offer valuable information but are limited by their discrete assessment points.
• Integrated application of multiple neuromonitoring modalities shows promise for enhanced prediction.

Conclusions:

• The combined use of cEEG, aEEG, NIRS, and potentially heart rate variability offers the most comprehensive approach to neuromonitoring in neonates with HIE.
• Integrated neuromonitoring strategies are vital for predicting imaging outcomes and long-term neurodevelopmental trajectories.
• This review highlights the importance of tailored neuromonitoring in the context of therapeutic hypothermia for HIE.