Inherited and acquired risk factors for arterial ischemic stroke in childhood
Giuseppe Lippi1, Massimo Franchini, Martina Montagnana
1Sezione di Chimica Clinica, Dipartimento di Scienze Morfologico-Biomediche, Università di Verona, Ospedale Policlinico G.B. Rossi, Piazzale Scuro, 10, 37134 Verona, Italy. giuseppe.lippi@univr.it
Insights
Childhood ischemic stroke is serious, with unknown causes in over a third of cases. Thrombophilia screening in children is debated due to uncertain diagnostic yield and unclear guidance for stroke prevention.
Area of Science:
- Pediatric Neurology
- Vascular Medicine
- Hematology
Background:
- Childhood ischemic stroke is a rare, severe condition with significant morbidity and mortality.
- The diverse and often unidentified causes of pediatric stroke pose challenges for prediction and prevention.
- While various acquired and inherited causes are known, over a third of cases remain idiopathic.
Purpose of the Study:
- To evaluate the diagnostic yield and clinical utility of thrombophilia screening in children with ischemic stroke.
- To clarify the role of inherited thrombophilic conditions in initial and recurrent pediatric stroke.
- To address the lack of evidence-based guidelines for stroke prevention and management in pediatric patients with hypercoagulable states.
Main Methods:
- Review of existing literature on the etiology of childhood ischemic stroke.
- Analysis of the contribution of thrombophilic conditions versus non-thrombophilic risk factors.
- Discussion on the diagnostic yield and uncertainty surrounding thrombophilia screening in pediatric populations.
Main Results:
- The etiology of ischemic stroke in children remains unknown in over 33% of cases.
- The diagnostic yield of thrombophilia screening is reportedly lower in children compared to adults.
- The specific contribution of various prothrombotic abnormalities to pediatric stroke, especially recurrent events, is uncertain.
Conclusions:
- Thrombophilia screening in children with stroke is a subject of debate due to lower diagnostic yield and unclear clinical impact.
- Further research is essential to quantify the risk of cerebrovascular events in children with prothrombotic disorders.
- Identifying combinations of risk factors is crucial for developing effective stroke prevention and treatment strategies in pediatric patients.
Abstract:
Ischemic stroke in childhood is a rare but serious disorder, which is associated with significant morbidity and mortality. The lack of causal homogeneity in the aetiology of this disorder presents problems for predicting and preventing it, making the ischemic stroke in childhood a real dilemma for the clinician. Although a variety of potential inherited and acquired causes have been now identified, including cardiac pathologies, infections, prothrombotic, metabolic and vascular disorders, the aetiology of ischemic stroke in the young remains still unknown in more than one third of the patients. Presently, an appropriate evaluation of some hypercoagulable conditions seems justified in adults with stroke. However, the etiologic contribution of several thrombophilic conditions to initial and recurrent stroke in affected children has not been definitely clarified, since more powerful and influential non-thrombophilic risk factors are usually present, making the thrombophilia screening in such circumstance a matter of debate. In particular, the diagnostic yield of the screening is reportedly lower in children, the role of several prothrombotic abnormalities is uncertain, especially in recurrent stroke, and there is no evidence-based guidance to stroke prevention and therapy in children carrying a hypercoagulable state. Additional studies are needed to quantify the risk for a cerebrovascular event in children with a prothrombotic disorder and to determine which combination of endogenous and exogenous risk factors leads to greater rates of initial and recurrent stroke.
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