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Cerebral infarcts and seizures in the neonate
K Aso1, M S Scher, M A Barmada
1Developmental Neurophysiology Laboratory, Magee-Womens Hospital, Pittsburgh, PA 15213.
Insights
Cerebral infarcts in infants are strongly linked to seizures following perinatal hypoxic-ischemic insults. This finding highlights the critical association between brain injury and seizure activity in newborns.
Area of Science:
- Neonatal Neurology
- Pediatric Pathology
- Neuroscience
Background:
- Perinatal hypoxic-ischemic insults are a significant cause of neonatal brain injury.
- Seizures are a common clinical manifestation of brain injury in neonates.
- Understanding the specific neuropathological correlates of seizures is crucial for diagnosis and management.
Purpose of the Study:
- To investigate the association between specific cerebrovascular lesions and electroencephalographic seizures in infants who suffered perinatal hypoxic-ischemic insults.
- To identify which type of brain lesion is most highly correlated with seizure occurrence.
Main Methods:
- Retrospective analysis of autopsy data from 54 infants with perinatal hypoxic-ischemic insults.
- Review of neuropathological findings, including various cerebrovascular lesions.
- Correlation of lesion types with the presence or absence of electroencephalographic seizures.
Main Results:
- Fifty infants presented with various cerebrovascular lesions, including intraventricular hemorrhage, periventricular leukomalacia, and cerebral infarcts.
- Nine infants had documented electroencephalographic seizures.
- Cerebral infarcts showed the highest correlation with seizures, occurring in 44% of infants with this lesion, significantly more than other vascular lesions.
Conclusions:
- Cerebral infarcts are a key neuropathological finding associated with seizures in infants experiencing perinatal hypoxic-ischemic insults.
- The presence of cerebral infarcts significantly increases the likelihood of seizures in this vulnerable population.
- This association underscores the importance of recognizing cerebral infarcts in the context of neonatal seizures.
Abstract:
A retrospective analysis was performed on 54 infants who suffered perinatal hypoxic-ischemic insults and came to autopsy, in an attempt to assess the association of cerebral infarcts with seizures. Fifty infants had several types of cerebrovascular lesions, including intraventricular hemorrhage (32 cases), periventricular leukomalacia (24), ischemic neuronal necrosis (18), pontosubicular necrosis (12), cerebral infarct (9), and cerebellar hemorrhage (7). Of these infants, nine had electroencephalographic seizures. Among a variety of cerebrovascular lesions, cerebral infarcts represented the single lesion most highly correlated with seizures. The incidence of seizures in infants with cerebral infarcts (44%) was significantly higher than with other types of vascular lesions.