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Blood Coagul Fibrinolysis. 1995 Dec;6(8):761-4.

Resistance to activated protein C (APCR) in children with acute lymphoblastic leukaemia--the need for a prospective multicentre study.

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1
Department of Pediatrics, Westfälische Wilheims University, Frankfurt, Germany.

Abstract

Activated protein C resistance (APCR), usually due to the Arg506-->Gln point mutation of the factor V gene, has emerged as the most important hereditary cause of venous thromboembolism. Using an aPTT based method in the presence of APC, together with a DNA technique based on the polymerase chain reaction, we investigated 65 leukaemic children and 65 age-matched healthy controls for the presence of this mutation. In both groups three children showed APCR. All six children showed the common factor V gene mutation, Arg506-->Gln. Although no child in the control group presented with thrombosis, all three children with acute lymphoblastic leukaemia had thromboembolic events. Whether the poor anticoagulant response to activated protein C in leukaemic children treated with prednisone, vincristine, daunorubicin and asparaginase affects the risk of thrombotic events requires a more extensive multicentre study.

PMID:
8825228
[Indexed for MEDLINE]
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