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Updated: Dec 5, 2025
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Transient Middle Cerebral Artery Occlusion Model of Neonatal Stroke in P10 Rats
Published on: April 21, 2017
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Short-term outcomes after a neonatal arterial ischemic stroke
Mauricio A López-Espejo1, Marta Hernández Chávez2, Isidro Huete3
1Unit of Neurology, Division of Pediatrics, Medical School, Pontificia Universidad Católica de Chile, Santiago, Chile. mlopeze@med.puc.cl.
Summary
Neonatal arterial ischemic stroke (NAIS) size and location predict motor deficits and seizures at discharge. Larger stroke volume and basal ganglia involvement indicate motor impairment, while cortical lesions suggest recurrent seizures.
Area of Science:
- Neurology
- Pediatrics
- Radiology
Background:
- Neonatal arterial ischemic stroke (NAIS) is a significant cause of neurological deficits in newborns.
- Understanding predictors of short-term outcomes is crucial for early intervention.
Purpose of the Study:
- To determine the frequency and radiological predictors of recurrent acute symptomatic seizures (RASS) and motor impairment at discharge following NAIS.
Main Methods:
- A nonconcurrent cohort study included 33 full-term newborns with MRI-confirmed NAIS.
- Stroke size (volume/whole brain volume) and location were analyzed.
- Univariate and multivariate logistic regression analyses were performed.
Main Results:
- 45.5% of newborns had motor deficits, and 27.3% experienced at least two seizures at discharge.
- Stroke size >3.3% WBV and basal ganglia involvement predicted motor impairment.
- Cortical involvement (temporal/frontal lobes) predicted RASS.
Conclusions:
- Stroke size and location are independent risk factors for adverse short-term neurological outcomes in NAIS.
- Radiological findings can predict motor deficits and seizures in affected newborns.
