• Jian-Jun Wang, Kai-Li Shi, Jiu-Wei Li, Li-Qiong Jiang, Opher Caspi, Fang Fang, Jin Xiao, Hong Jing, and Li-Ping Zou.
• Department of Neurology, Beijing Children's Hospital, Capital Medical University, Beijing, China.
• Pediatr. Neurol. 2009 Apr 1; 40 (4): 277-81.

AbstractThis study assessed potential etiologies of arterial ischemic stroke and hemorrhagic stroke among children of Mainland China. From January 1996-June 2006, 251 patients with consecutive childhood stroke (aged 1 month through 16 years) were admitted to Beijing Children's Hospital. Arterial ischemic stroke accounted for the majority of cases (62.5%). Idiopathic stroke (32.5%) was more common than cardiac stroke (8.9%), vascular or arteriopathic stroke (21.0%), hematologic disorder-associated stroke (10.8%), and other etiologies (26.8%). Vitamin K deficiency was a major etiology in 72 of 94 hemorrhagic strokes (76.6%), most of which occurred in breastfeeding infants (80.6%) and those who received no vitamin K after birth (73.6%). Arteriovenous malformation (6.4%) was a frequent etiology in the remaining hemorrhagic stroke cases. We found that ischemic stroke in children is more common than hemorrhagic stroke, and many cases of ischemic stroke are idiopathic. Vitamin K deficiency was a major etiology in these young infants who experienced hemorrhagic stroke.

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