Diagnosis of von Willebrand disease in Argentina: a single institution experience

Abstract

von Willebrand disease (VWD) is the most common autosomal bleeding disorder, mostlyinherited as dominant trait. VWD is due to deficiency/abnormality of von Willebrand factor (VWF). Thetrue prevalence of VWD is unknown, but estimated as 0.1% to 1% of the general population. The bleeding score (BS) was used to evaluate the bleeding status of patients presenting atour institution. Laboratory analyses include: VWF:Ag, VWF:RCo, VWF:CB, multimeric pattern, VWFpropeptide, Desmopressin challenge test. Genotypic analysis comprises the study of specific exons of VWF,depending on the suspected variant.