2006
DOI: 10.1182/blood-2006-05-021105
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The mutational spectrum of type 1 von Willebrand disease: results from a Canadian cohort study

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Cited by 296 publications
(129 citation statements)
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“…Diagnosing patients with vWF: Rco and/or vWF: Ag !30 IU/dL with vWD is appropriate as some studies have shown that these patients are likely to have vWF gene mutations, significant bleeding, and strongly positive family history. 17,18 However, vWF: Rco and/or vWF: Ag in the range of 30 to 50 IU/dL pose a significant diagnostic challenge as (1) mild bleeding symptoms can be common among healthy people and findings of moderately low vWF may be coincidental, (2) moderately low vWF activity are usually not co-inherited within (3) ABO blood group strongly influences vWF activity. 16e22 However, recently published guidelines by the European group on vWD classify patients with vWF: Rco and/or vWF: Ag more than 30 IU/dL but less than 40 IU/dL as having type 1 vWD, although acknowledging that these patients usually experience milder bleeding and management in general includes avoidance of anti-platelet drugs and antifibrinolytics as needed.…”
Section: Discussionmentioning
confidence: 98%
“…Diagnosing patients with vWF: Rco and/or vWF: Ag !30 IU/dL with vWD is appropriate as some studies have shown that these patients are likely to have vWF gene mutations, significant bleeding, and strongly positive family history. 17,18 However, vWF: Rco and/or vWF: Ag in the range of 30 to 50 IU/dL pose a significant diagnostic challenge as (1) mild bleeding symptoms can be common among healthy people and findings of moderately low vWF may be coincidental, (2) moderately low vWF activity are usually not co-inherited within (3) ABO blood group strongly influences vWF activity. 16e22 However, recently published guidelines by the European group on vWD classify patients with vWF: Rco and/or vWF: Ag more than 30 IU/dL but less than 40 IU/dL as having type 1 vWD, although acknowledging that these patients usually experience milder bleeding and management in general includes avoidance of anti-platelet drugs and antifibrinolytics as needed.…”
Section: Discussionmentioning
confidence: 98%
“…Mutations have only been identified in about 60% of patients included in three large multicenter studies conducted in Canada and Europe [8][9][10].…”
Section: Discussionmentioning
confidence: 98%
“…Der Typ 1 war bisher molekulargenetisch nur wenig untersucht worden. Das hat sich durch eine europäische und eine kanadische multizentrische Studien, die kürzlich abgeschlossen wurden, geän-dert [2,4]. Typ-1-Mutationen waren ebenfalls über das ganze Gen verteilt, jedoch fanden sich Cluster in der D3-Domäne und der C-terminalen Region des VWF (.…”
Section: Von Willebrand Disease and Upshaw-schulman Syndrome The Twounclassified