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Basal Ganglia and Internal Capsule Stroke in Childhood—Risk Factors, Neuroimaging, and Outcome in a Series of 28 Patients: A Tertiary Hospital Experience

Department of Neurology, Hospital de Pediatría Prof. Dr. J.P. Garrahan, Ciudad Autónoma de Buenos Aires, Argentina

Hugo Antonio Arroyo, MD

Department of Neurology, Hospital de Pediatría Prof. Dr. J.P. Garrahan, Ciudad Autónoma de Buenos Aires, Argentina, hugoarroyo{at}arnet.com.ar

Stroke Group

We present 28 patients with basal ganglia ischemic stroke and describe the main neurological manifestations, neuroimaging findings, risk factors, and outcome. In 23 cases, at least 1 risk factor was identified. A total of 7 cases (25%) had antecedent of varicella infection and 7 cases (25%) had preceding mild head trauma. Similar antecedents were present only in 2.6% and 5.3% of patients with nonbasal ganglia stroke, respectively (odds ratio: 12.2, 95% confidence interval: 2.04-124.65 and odds ratio: 5.92, 95% confidence interval: 1.32-29.7). The arterial abnormalities identified in 10 patients were narrowing (6) or occlusion (4) of the M1 segment. After a median follow-up of 24 months, 19 patients had a good outcome. Magnetic resonance angiography and catheter cerebral angiography played an important role in the identification of arterial disease. We propose that basal ganglia infarction is a different group of ischemic stroke with prevalent risk factors (varicella infection and mild head trauma) and good outcome.

Key Words: basal ganglia stroke • subcortical infarction • arterial ischemic stroke • internal capsule

This version was published on June 1, 2009

Journal of Child Neurology, Vol. 24, No. 6, 685-691 (2009)
DOI: 10.1177/0883073808330163


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