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Magnetic resonance imaging in pediatric stroke
1Department of Radiology, Baylor College of Medicine, Houston, TX, USA. jvhunter@texaschildrenshospital.org
Insights
Pediatric stroke, often underdiagnosed, affects neonates to older children. Identifying causes like cardiac issues or blood vessel anomalies is key for better diagnosis and management.
Area of Science:
- Neurology
- Pediatrics
- Vascular Medicine
Background:
- Pediatric stroke encompasses a range of conditions, from fetal hypoxic-ischemic injury to arterial/venous infarctions in infants and children.
- It is a frequently underrecognized and underdiagnosed condition with significant economic and health implications.
- Risk factors and causes in children differ substantially from adult stroke profiles.
Purpose of the Study:
- To highlight the scope and diagnostic challenges of pediatric stroke.
- To identify common etiologies of ischemic and hemorrhagic stroke in children.
- To emphasize the role of advanced imaging in diagnosis and management.
Main Methods:
- Review of existing literature and clinical data on pediatric stroke.
- Analysis of etiological factors in ischemic versus hemorrhagic pediatric stroke.
- Evaluation of the diagnostic utility of Magnetic Resonance Imaging (MRI) in childhood stroke.
Main Results:
- Etiology can be identified in approximately 75% of pediatric stroke cases with thorough workup.
- Cardiac disorders and hemoglobinopathy are leading causes of ischemic stroke in children.
- Congenital vascular anomalies and coagulation/platelet defects are frequent in hemorrhagic stroke.
Conclusions:
- Pediatric stroke is a critical, often missed, diagnosis requiring specialized evaluation.
- Understanding distinct pediatric stroke causes is essential for effective treatment.
- MRI is a valuable noninvasive tool for diagnosing and managing pediatric stroke.
Abstract:
Pediatric stroke is a term that can be used to encompass everything from hypoxic-ischemic injury to the fetal central nervous system, and especially the premature neonate, to bland versus hemorrhagic infarction from arterial or venous causes in the infant and older child. Pediatric stroke is a chronically underrecognized and therefore underdiagnosed problem that may have significant economic implications. The risk factors for stroke in children are numerous and differ from those in adults. However, with adequate workup, the etiology can be identified in about 75% of cases. Cardiac disorders and hemoglobinopathy are the most common causes of ischemic infarction in children, whereas various congenital anomalies of the blood vessels or defects in coagulation or platelet function often are found in children with parenchymal hemorrhage. Magnetic resonance imaging provides a noninvasive method of investigating childhood stroke, aiding in both better diagnosis and management of this problem.