Prothrombotic abnormalities in childhood ischaemic stroke.

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.