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KMID : 0387820170240010001
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Clinical Pediatric Hematology-Oncology
2017 Volume.24 No. 1 p.1 ~ p.10
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Venous Thromboembolism in Children
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Choi Hyoung-Soo
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Abstract
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Although the incidence of venous thromboembolism (VTE) is significantly lower than in adults, recognition of VTE in children is increasing as advanced medical care enhances treatment intensity in pediatric patients. VTE in children usually develops as a secondary complication of underlying clinical conditions such as venous catheterization, malignancy, infections, trauma, surgery, and inherited or acquired thrombophilia, of which venous catheterization poses the highest risk. Neonates are at the greatest risk for VTE with a second peak in incidence during adolescence. There is some debate regarding which patients should have testing for inherited risk factors such as factor V Leiden, prothrombin G20210A, protein C-, protein S- and antithrombin deficiency. Guidelines for diagnosis and treatment of VTE in children are mostly extrapolated from adult data, despite the uniqueness of pediatric hemostatic system. The most common treatment is unfractionated heparin or low molecular weight heparin with vitamin K antagonist, whereas newly developed direct oral anticoagulants are under discussion and have been evaluated in only a small number of clinical trials in pediatric patients. Prospective multicenter collaborative research is necessary to develop validated guidelines for the diagnosis, antithrombotic therapy, prevention and follow-up monitoring of pediatric VTE.
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KEYWORD
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Venous thromboembolism, Children
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