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Updated: May 13, 2026

A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
Arterial ischemic stroke and hemorrhagic stroke in Chinese children: a retrospective analysis
1Department of Neurology, Children's Hospital of Chongqing Medical University, Chongqing, PR China.
Insights
Hemorrhagic stroke (HS) is more common in Chinese children than arterial ischemic stroke (AIS). Vitamin K deficiency is a primary cause of HS in infants, while minor head injuries often precede AIS.
Area of Science:
- Pediatric Neurology
- Neuroscience
- Public Health
Background:
- Stroke is a significant cause of childhood morbidity and mortality.
- Understanding the specific characteristics, etiologies, and risk factors of pediatric stroke subtypes is crucial for effective prevention and treatment.
Purpose of the Study:
- To investigate the clinical features, etiological factors, and risk factors of pediatric arterial ischemic stroke (AIS) and hemorrhagic stroke (HS) in Southwest China.
- To compare the incidence and characteristics of AIS and HS in the pediatric population.
Main Methods:
- Retrospective review of medical records for pediatric patients diagnosed with AIS or HS between January 2003 and March 2011 at Children's Hospital of Chongqing Medical University.
- Statistical analysis using SPSS 17.0, including Chi-squared tests to examine relationships between stroke types, sex, age, and neuroradiological findings.
Main Results:
- A total of 169 pediatric stroke cases were analyzed (119 boys, 50 girls).
- Hemorrhagic stroke (HS) was more prevalent (64.1%) than arterial ischemic stroke (AIS) (35.3%).
- Vitamin K deficiency was the main cause of HS (59.6%), particularly in breastfed infants without postnatal vitamin K supplementation. Minor head injury was a common preceding factor for AIS (40.0%).
Conclusions:
- Hemorrhagic stroke is the predominant type of stroke in children in Southwest China.
- Vitamin K deficiency is a critical, preventable cause of HS in infants.
- Minor head trauma is a significant risk factor for AIS in children, highlighting the need for protective measures.
Abstract:
To study the characteristics of pediatric arterial ischemic stroke (AIS) and hemorrhagic stroke (HS) in southwest of China, and analyze the etiology and risk factor. This study retrospectively reviewed the records of all patients in both department of neurology and department of neurosurgery in Children's hospital of Chongqing medical university from January 2003 to March 2011, and patients were eligible for analysis if they had been diagnosed with AIS or HS. And SPSS 17.0 software was used for statistical analysis. The χ(2) test was used to exam relationships between stroke types and sex, age, and that between neuroradiological images and sex. 119 Boys (70.4%) and 50 girls (29.6%) were included. In these cases, HS accounted for the majority of the cases (n=109, 64.1%), and vitamin K deficiency was a major etiology in 65 out of 109 HS (59.6%), most of which occurred in breastfeeding infants (87.7%) and those who received no vitamin K after birth. AIS accounted for 35.3% of the cases, and minor head injury associated stroke (40.0%) was more common than vasculopathy associated stroke (16.6%) and other kinds of stroke. HS in children is more common than AIS. Vitamin K deficiency was a major etiology in these young infants who experienced HS, and many cases of AIS were associated with minor head injury.
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