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Childhood arterial ischemic stroke due to mineralizing angiopathy: an 18-year single-center experience

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DEVELOPMENTAL MEDICINE AND CHILD NEUROLOGY
卷 63, 期 9, 页码 1123-1126

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WILEY
DOI: 10.1111/dmcn.14903

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Mineralizing angiopathy is a unique stroke syndrome in children characterized by basal ganglia infarction and lenticulostriate calcification. Newly reported clinical features include later stroke onset, basal ganglia hemorrhage, and additional non-basal ganglia calcifications. Some children had moderate-to-severe neurological deficits, but there were no symptomatic stroke recurrences during follow-up.
Mineralizing angiopathy is a unique, age-specific stroke syndrome characterized by basal ganglia infarction and lenticulostriate calcification after minor head injury in early childhood. There is limited understanding of the pathophysiology, course, and clinical outcome of this syndrome. We describe the clinical and radiographical phenotype of a single-center, consecutively enrolled cohort of children with mineralizing angiopathy from January 2002 to January 2020 and provide a comparative analysis to previously published literature. Fourteen children were identified. Previously unreported findings include: stroke onset in eight children older than 18 months; presence of basal ganglia hemorrhage in four; multifocal basal ganglia infarcts in three; presence of additional non-basal ganglia calcifications in three; and presence of thrombophilia in one. Seven children had moderate-to-severe neurological deficits. There was no symptomatic stroke recurrence (mean follow-up 3y 7mo, SD 1y 7mo). Our expanded phenotype highlights distinct characteristics of mineralizing angiopathy in children and has the potential to inform future research.

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