Annals of hematology
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The purpose of this study was to evaluate inherited and acquired prothrombotic risk factors among children with malignancies who have thrombosis and emphasize the importance of inherited prothrombotic risk factors. Thirty-seven consecutive children with thrombosis and malignancy were included in this study. The patients were evaluated separately for time of development of thrombosis, insertion of a central venous line (CVL), history of L: -asparaginase usage, and recent infections. ⋯ Malignancy is an important risk factor for the development of childhood thrombosis. However, the risk of thrombosis increases when accompanied by additional prothrombotic risk factors. For this reason, especially children with malignancy and at high risk for the development of thrombosis, such as those who have received L: -asparaginase or a replaced CVL during their therapy, might be screened for additional prothrombotic risk factors and appropriate measures might be taken to prevent the development of thrombosis.