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Updated: Jul 15, 2026

Transient Middle Cerebral Artery Occlusion Model of Neonatal Stroke in P10 Rats
Published on: April 21, 2017
Maternal and infant characteristics associated with perinatal arterial stroke in the preterm infant
Manon J N L Benders1, Floris Groenendaal, Cuno S P M Uiterwaal
1Department of Neonatology, Wilhelmina Children's Hospital, Utrecht, The Netherlands.
Insights
Perinatal arterial stroke (PAS) in preterm infants is linked to antenatal and perinatal factors like twin-to-twin transfusion and hypoglycemia. Imaging shows middle cerebral artery involvement varies with gestational age.
Area of Science:
- Neonatal neurology
- Pediatric stroke research
- Perinatal medicine
Background:
- Perinatal arterial stroke (PAS) studies often exclude preterm infants.
- Understanding PAS in this vulnerable population is crucial.
Purpose of the Study:
- To analyze imaging findings in preterm infants with PAS.
- To identify antenatal and perinatal risk factors for PAS in preterm infants.
Main Methods:
- Hospital-based, case-control study.
- 31 preterm infants with confirmed PAS (cases).
- Matched controls for comparison.
Main Results:
- PAS predominantly affected the left hemisphere (61%).
- Middle cerebral artery distribution was most common.
- Independent risk factors included twin-to-twin transfusion, fetal heart rate abnormality, and hypoglycemia.
- Branch involvement patterns varied by gestational age (28-32 vs. >32 weeks).
Conclusions:
- Preterm PAS is associated with prenatal, perinatal, and postpartum factors.
- No maternal risk factors were identified.
- Cerebral artery branch involvement evolves with increasing gestational age.
Background And Purpose:
Most perinatal arterial stroke (PAS) studies that investigated infant characteristics have excluded preterm infants from the study population. We sought to analyze the imaging findings and antenatal and perinatal risk factors in preterm infants with PAS.
Methods:
This was a hospital-based, case-control study of preterm infants. Case infants were confirmed by reviewing brain imaging scans and medical records (n=31). Three controls per case were individually matched with case infants from the study population.
Results:
Gestational age ranged between 27 and 36 weeks, and birth weight ranged between 580 and 3180 g. PAS was more common on the left side (61%), and 7% had bilateral PAS. The majority of strokes involved the middle cerebral artery distribution. Involvement of 1 or more lenticulostriate branches was most common among infants with a gestational age of 28 to 32 weeks, but main branch involvement was seen only in those with a gestational age of >32 weeks. Twin-to-twin-transfusion syndrome, fetal heart rate abnormality, and hypoglycemia were identified as independent risk factors for PAS.
Conclusions:
Preterm PAS is associated with prenatal, perinatal, and postpartum risk factors. We were unable to identify any maternal risk factors. Involvement of the different branches of the middle cerebral artery changed with an increase in gestational age.
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