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Regional variations in human newborn cerebral blood flow
D Younkin1, M Delivoria-Papadopoulos, M Reivich
1Department of Neurology, University of Pennsylvania School of Medicine, Philadelphia.
The Journal of Pediatrics
|January 1, 1988
Summary
Neonatal regional cerebral blood flow (rCBF) varies across brain regions. Blood flow was lowest in the frontal lobes and highest in the temporal and occipital regions in newborn infants.
Area of Science:
- Neonatal neuroscience
- Cerebral blood flow research
- Infant brain development
Background:
- Previous studies identified regional differences in glucose metabolism in newborn brains.
- Understanding regional cerebral blood flow (rCBF) is crucial for assessing neonatal brain health.
Purpose of the Study:
- To investigate whether regional differences in cerebral blood flow exist in newborn infants.
- To compare rCBF across different brain regions in neonates.
Main Methods:
- Utilized a modified xenon 133 (133Xe) clearance technique.
- Measured rCBF in 21 infants using eight extracranial detectors.
- Assessed four homologous brain regions: frontal, parietal, temporal, and occipital.
Main Results:
- Demonstrated significant regional variations in neonatal rCBF.
- Found the lowest rCBF in the frontal regions.
- Observed higher rCBF in the parietal, temporal, and occipital regions.
Conclusions:
- Neonatal cerebral blood flow exhibits distinct regional patterns.
- These rCBF differences may reflect variations in brain development and function.
- Findings contribute to understanding neonatal brain physiology.