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A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
Cerebral sinovenous thrombosis in children
1Division of Neurology, Hospital for Sick Children, Toronto, ON, Canada.
Insights
Cerebral sinovenous thrombosis (CSVT) in children, particularly neonates, often leads to severe outcomes. Seizures and venous infarcts are key indicators of poor prognosis in pediatric CSVT cases.
Area of Science:
- Pediatric Neurology
- Vascular Neurology
- Pediatric Critical Care
Background:
- Cerebral sinovenous thrombosis (CSVT) is a significant neurological disorder in children, necessitating further research into its prevention and management.
- Understanding the epidemiology and risk factors of pediatric CSVT is crucial for early diagnosis and intervention.
Purpose of the Study:
- To investigate the incidence, clinical characteristics, risk factors, and outcomes of cerebral sinovenous thrombosis in pediatric patients.
- To identify predictors of adverse neurological outcomes in children diagnosed with CSVT.
Main Methods:
- Data collected from the Canadian Pediatric Ischemic Stroke Registry between 1992 and 1998.
- Inclusion criteria: Children aged 0-18 years with symptomatic and radiographically confirmed CSVT.
- Analysis of demographic data, clinical presentation, risk factors, treatment, and outcomes.
Main Results:
- The incidence of CSVT was 0.67 per 100,000 children annually, with neonates being the most affected population.
- Common clinical features included seizures (58%), diffuse (76%) and focal (42%) neurological signs.
- Identified risk factors: head/neck disorders (29%), acute (54%) and chronic (36%) systemic illnesses, and prothrombotic states (41%).
- Venous infarcts occurred in 41% of cases; 53% received antithrombotic agents.
- Adverse outcomes: neurological deficits in 38%, mortality in 8% (half attributed to CSVT).
- Predictors of poor outcomes were seizures at presentation and venous infarcts.
Conclusions:
- Pediatric CSVT predominantly affects neonates and is associated with significant morbidity and mortality, impacting approximately half of the affected children.
- The presence of venous infarcts or seizures at the time of diagnosis indicates a higher likelihood of poor neurological outcomes.
Background:
Cerebral sinovenous thrombosis in children is a serious disorder, and information is needed about its prevention and treatment.
Methods:
The Canadian Pediatric Ischemic Stroke Registry was initiated in 1992 at the 16 pediatric tertiary care centers in Canada. Children (newborn to 18 years of age) with symptoms and radiographic confirmation of sinovenous thrombosis were included.
Results:
During the first six years of the registry, 160 consecutive children with sinovenous thrombosis were enrolled, and the incidence of the disorder was 0.67 cases per 100,000 children per year. Neonates were most commonly affected. Fifty-eight percent of the children had seizures, 76 percent had diffuse neurologic signs, and 42 percent had focal neurologic signs. Risk factors included head and neck disorders (in 29 percent), acute systemic illnesses (in 54 percent), chronic systemic diseases (in 36 percent), and prothrombotic states (in 41 percent). Venous infarcts occurred in 41 percent of the children. Fifty-three percent of the children received antithrombotic agents. Neurologic deficits were present in 38 percent of the children, and 8 percent died; half the deaths were due to sinovenous thrombosis. Predictors of adverse neurologic outcomes were seizures at presentation and venous infarcts.
Conclusions:
Sinovenous thrombosis in children affects primarily neonates and results in neurologic impairment or death in approximately half the cases. The occurrence of venous infarcts or seizures portends a poor outcome.
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