Neurosonographic changes in newborns treated with extracorporeal membrane oxygenation

Area of Science:

• Neonatal neurology
• Pediatric intensive care
• Extracorporeal membrane oxygenation (ECMO)

Background:

• Extracorporeal membrane oxygenation (ECMO) is a life-support measure for neonates with severe cardiorespiratory failure.
• Neurodevelopmental outcomes in neonates treated with ECMO are a significant concern.
• Neurosonography is a key tool for monitoring brain health in this population.

Purpose of the Study:

• To identify and characterize abnormal neurosonographic findings in near-term neonates receiving ECMO.
• To assess the incidence of specific brain injury patterns during ECMO therapy.
• To evaluate the potential of neurosonography to guide ECMO management.

Main Methods:

• Retrospective analysis of neurosonograms from 40 near-term neonates undergoing ECMO.
• Categorization of abnormal findings into distinct patterns: intracranial hemorrhage and hypoxic-ischemic injury.
• Correlation of neurosonographic findings with clinical outcomes.

Main Results:

• Ten out of 40 (25%) neonates exhibited abnormal neurosonograms.
• Two neonates showed intracranial hemorrhage, a lower incidence than previously reported.
• Nine neonates presented with diffuse or focal echogenic areas indicative of hypoxic-ischemic injury (periventricular leukomalacia, cerebral edema, or large vessel infarction).
• Three of the ten neonates with abnormal findings survived with neurological sequelae.

Conclusions:

• Abnormal neurosonographic patterns, including hemorrhage and hypoxic-ischemic injury, are observed in a significant proportion of neonates on ECMO.
• These findings suggest that neurosonography can detect brain injuries during ECMO.
• Recognition of these patterns should prompt consideration for initiating or accelerating the weaning process from ECMO.