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Mouse Models of Periventricular Leukomalacia
Published on: May 18, 2010
Differences between periventricular hemorrhagic infarction and periventricular leukomalacia
Takeshi Tsuji1, Akihisa Okumura2, Hiroyuki Kidokoro3
1Department of Pediatrics, Okazaki City Hospital, Okazaki, Japan.
Brain & Development
|August 28, 2013
Summary
Periventricular hemorrhagic infarction (PVHI) in infants is linked to postnatal injury, while periventricular leukomalacia (PVL) is associated with pre- or perinatal injury, differentiating their origins and clinical presentations.
Area of Science:
- Neonatal Neurology
- Pediatric Neuroimaging
- Clinical Neuroscience
Background:
- Periventricular hemorrhagic infarction (PVHI) and periventricular leukomalacia (PVL) are significant causes of brain injury in preterm infants.
- Differentiating between PVHI and PVL is crucial for understanding injury mechanisms and prognosis.
Purpose of the Study:
- To elucidate the distinct clinical, ultrasonographic, and electroencephalographic (EEG) features differentiating infants with PVHI from those with PVL.
- To investigate the temporal relationship between EEG abnormalities and cranial ultrasonography findings in these two conditions.
Main Methods:
- Retrospective analysis of clinical data, serial cranial ultrasonography, and electroencephalogram (EEG) in 22 preterm infants with PVHI and 49 with PVL.
- Evaluation of acute and chronic EEG abnormalities in relation to ultrasonography findings from birth.
Main Results:
- Infants with PVHI had lower gestational age and birth weight compared to those with PVL.
- PVHI cases often showed normal EEGs initially, with abnormalities appearing after ultrasonography changes, suggesting postnatal injury.
- PVL cases more frequently exhibited acute EEG abnormalities early (days 1-2), indicating pre- or perinatal injury.
Conclusions:
- PVHI is presumed to result primarily from postnatal injury.
- PVL is presumed to result primarily from pre- or perinatal injury.
- The timing of EEG abnormalities relative to ultrasonography findings helps distinguish between PVHI and PVL.
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