Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
2009-12-16
pubmed:abstractText
The wide clinical spectrum of von Willebrand disease (VWD), its complex pathophysiology and its classification into distinct quantitative (type 1 or type 3) and qualitative (type 2) types with further subtle distinctions have prevented most clinicians from establishing a straightforward approach to diagnosing and treating this inherited bleeding disorder. The results of studies involving large cohorts of patients with a wide range of bleeding manifestations and variable von Willebrand factor (VWF) reduction have recently become available. These data have allowed the proposal of minimal criteria for a clinically useful diagnosis and for differentiating patients with mild VWD from subjects with borderline or only slightly reduced VWF levels who will not benefit from a specific diagnosis. These criteria are based on measurement of VWF ristocetin cofactor (VWF:RCo), VWF antigen (VWF:Ag), factor VIII and a standardized bleeding score (BS). Demonstration of the inheritance of the disorder could help to classify patients for whom insufficient hemostatic challenges may produce a falsely reassuring BS (like in children). Using this approach, mild VWD appears to be mostly composed of type 1 cases. Complemented by the results of desmopressin trial infusion, these parameters form the basis for a clinically oriented classification of all forms of VWD and may be useful for selecting the best treatment according to the severity of the disease. Although few molecular data have revealed practical utility, there is no doubt that the clarification of the molecular pathophysiology of VWD has allowed the unification of this complex disorder into a simple conceptual framework. This framework underlies the proposed utilization of simple phenotypic markers for optimizing treatments in individual patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1520-4383
pubmed:author
pubmed:issnType
Electronic
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
113-23
pubmed:meshHeading
pubmed-meshheading:20008189-Adult, pubmed-meshheading:20008189-Child, pubmed-meshheading:20008189-Deamino Arginine Vasopressin, pubmed-meshheading:20008189-Disease Management, pubmed-meshheading:20008189-Factor VIII, pubmed-meshheading:20008189-Female, pubmed-meshheading:20008189-Hemorrhage, pubmed-meshheading:20008189-Humans, pubmed-meshheading:20008189-Male, pubmed-meshheading:20008189-Mutation, pubmed-meshheading:20008189-Patient Selection, pubmed-meshheading:20008189-Phenotype, pubmed-meshheading:20008189-Postpartum Hemorrhage, pubmed-meshheading:20008189-Pregnancy, pubmed-meshheading:20008189-Pregnancy Complications, Hematologic, pubmed-meshheading:20008189-Severity of Illness Index, pubmed-meshheading:20008189-von Willebrand Diseases, pubmed-meshheading:20008189-von Willebrand Factor
pubmed:year
2009
pubmed:articleTitle
Optimizing treatment of von Willebrand disease by using phenotypic and molecular data.
pubmed:affiliation
Department of Cell Therapy and Hematology, San Bortolo Hospital, Vicenza, Italy. rodeghiero@hemato.ven.it
pubmed:publicationType
Journal Article, Review, Research Support, Non-U.S. Gov't