Why the study?
Do levels of thrombomodulin and von Willebrand factor correlate with endothelial dysfunction and disease outcome in children with acute lymphoblastic leukemia?
Do levels of thrombomodulin and von Willebrand factor correlate with endothelial dysfunction and disease outcome in children with acute lymphoblastic leukemia?
Severe endothelial dysfunction is present during the acute phase of ALL, and serum TM and vWF levels may serve as additional prognostic markers.
May indicate endothelial injury in acute pediatric ALL; hypothesis-generating for TM/vWF as prognostic markers pending prospective validation.
The severe endothelial dysfunction in children with acute lymphoblastic leukemia (ALL) can result from the disease itself, from treatment, or from other conditions (e.g. sepsis). The aim of this study was to determine the levels of markers of endothelial activation in children with ALL and to assess their potential prognostic value. Fifty-two children with ALL, 19 children with ALL 1-10 years after the completion of therapy, and 28 healthy children were studied. In children with ALL, there was a significant increase in thrombomodulin (TM) and von Willebrand factor (vWF) levels during the acute phase of the disease and during treatment. Children with an unfavorable outcome had higher levels of TM. In conclusion, severe endothelial dysfunction is present during the acute phase of ALL and during treatment and appears to result from the disease itself. Serum TM and vWF levels might represent additional, but not independent, prognostic markers in childhood ALL.
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Hatzipantelis et al. (2010) studied this question.
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