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A Thrombotic Stroke Model Based On Transient Cerebral Hypoxia-ischemia
Published on: August 18, 2015
Prothrombotic abnormalities in childhood ischaemic stroke
Chris Barnes1, Gabrielle Deveber
1Department of Haematology, Royal Children's Hospital, Melbourne, Australia.
Insights
Prothrombotic abnormalities are common in childhood stroke, affecting 20-50% of arterial ischaemic stroke cases and up to 99% of cerebral sinus venous thrombosis cases. These clotting disorders are increasingly recognized as key factors in childhood stroke development and recurrence.
Area of Science:
- Pediatric Neurology
- Hematology
- Thrombosis Research
Background:
- Childhood ischaemic stroke, including arterial ischaemic stroke (AIS) and cerebral sinus venous thrombosis (CSVT), presents significant morbidity and mortality.
- Prothrombotic abnormalities, involving the coagulation, fibrinolytic, or endothelial systems, predispose individuals to pathological thrombus formation.
- Understanding these abnormalities is crucial for developing effective management and prevention strategies for pediatric stroke.
Purpose of the Study:
- To review the existing literature on prothrombotic markers in childhood ischaemic stroke.
- To highlight the increasing evidence for the role of prothrombotic abnormalities in pediatric stroke.
- To discuss the implications for clinical management and future research.
Main Methods:
- Literature review of studies investigating prothrombotic abnormalities in childhood ischaemic stroke.
- Analysis of reported frequencies of prothrombotic markers in pediatric AIS and CSVT.
- Identification of specific associated prothrombotic conditions.
Main Results:
- Prothrombotic abnormalities were identified in 20-50% of children with AIS and 33-99% of children with CSVT.
- Associated factors in AIS include factor V Leiden mutation, elevated lipoprotein (a), protein C deficiency, and antiphospholipid antibodies.
- The pathogenic role of these abnormalities in initial and recurrent childhood stroke is increasingly evident.
Conclusions:
- Prothrombotic abnormalities are frequently observed in children with ischaemic stroke.
- These findings underscore the importance of investigating clotting disorders in pediatric stroke patients.
- Further multi-institutional prospective studies are needed to clarify the impact on treatment strategies.
Abstract:
Childhood ischaemic stroke, incorporating arterial ischaemic stroke and cerebral sinus venous thrombosis, is associated with significant morbidity and mortality in children. The majority of cases in children present with well-recognised risk factors. The appreciation of the role prothrombotic abnormalities have in disease states is developing rapidly. Prothrombotic abnormalities are abnormalities of the coagulation system, fibrinolytic system, endothelial cells or platelets that lead to a reduced threshold for pathological thrombus formation. Our understanding of the role of prothrombotic abnormalities in childhood ischaemic stroke is increasing and has a direct bearing on the development of effective management and prevention strategies. We provide a brief background of prothrombotic abnormalities and review the available literature on prothrombotic markers in childhood ischaemic stroke. Overall, prothrombotic abnormalities have been identified in 20-50% of children presenting with AIS and 33-99% of children with cerebral sinus venous thrombosis. There appear to be a number of associations emerging including an increased frequency of factor V Leiden mutation, elevated lipoprotein (a), protein C deficiency and antiphospholipid antibodies in children presenting with arterial ischaemic stroke. The pathogenic role of prothrombotic abnormalities as predisposing to initial and recurrent childhood ischaemic stroke is becoming increasingly evident. The impact on treatment, however, will only be clarified with carefully designed, multi-institutional prospective studies.
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