Von Willebrand factor assay proficiency testing: The North American specialized coagulation laboratory association experience

American Journal of Clinical Pathology

Volumn 135, Issue 6, 2011, Pages 862-869

  Chandler, Wayne L ^a   Peerschke, Ellinor I B ^b   Castellone, Donna D ^b   Meijer, Piet ^c  

^a UNIVERSITY OF WASHINGTON   (United States)

^b MOUNT SINAI SCHOOL OF MEDICINE   (United States)

^c ECAT Foundation   (Netherlands)

Author keywords

Proficiency testing; Von willebrand disease; Von willebrand factor antigen assay

Indexed keywords

COLLAGEN BINDING PROTEIN; RISTOCETIN; VON WILLEBRAND FACTOR;

ARTICLE; BLOOD CLOTTING; CLINICAL ARTICLE; DIAGNOSTIC ACCURACY; DIAGNOSTIC ERROR; HUMAN; IMMUNOASSAY; LABORATORY; NORTH AMERICA; PRIORITY JOURNAL; VON WILLEBRAND DISEASE;

BLOOD COAGULATION TESTS; HUMANS; LABORATORIES; NORTH AMERICA; PROFESSIONAL COMPETENCE; VON WILLEBRAND DISEASES; VON WILLEBRAND FACTOR;

EID: 79957686788     PISSN: 00029173     EISSN: 19437722     Source Type: Journal    
DOI: 10.1309/AJCPH5JK4ONENPAE     Document Type: Article

References (16)

1. Sadler JE. Low von Willebrand factor: sometimes a risk factor and sometimes a disease. Hematology Am Soc Hematol Educ Program. 2009:106-112.
2. Hayes TE, Brandt JT, Chandler WL, et al. External peer review quality assurance testing in von Willebrand disease: the recent experience of the United States College of American Pathologists proficiency testing program. Semin Thromb Hemost. 2006;32:499-504.
3. Meijer P, Haverkate F. An external quality assessment program for von Willebrand factor laboratory analysis: an overview from the European Concerted Action on Thrombosis and Disabilities Foundation. Semin Thromb Hemost. 2006;32:485-491. (Pubitemid 44157386)
4. Kitchen S, Jennings I, Woods TA, et al. Laboratory tests for measurement of von Willebrand factor show poor agreement among different centers: results from the United Kingdom National External Quality Assessment Scheme for Blood Coagulation. Semin Thromb Hemost. 2006;32:492-498. (Pubitemid 44157387)
5. Favaloro EJ, Bonar R, Meiring M, et al. 2B or not 2B? disparate discrimination of functional vWF discordance using different assay panels or methodologies may lead to success or failure in the early identification of type 2B vWD. Thromb Haemost. 2007;98:346-358. (Pubitemid 47250238)
6. Favaloro EJ, Bonar R, Kershaw G, et al. Reducing errors in identification of von Willebrand disease: the experience of the Royal College of Pathologists of Australasia Quality Assurance Program. Semin Thromb Hemost. 2006;32:505-513. (Pubitemid 44157389)
7. Favaloro EJ, Bonar R, Kershaw G, et al. Laboratory diagnosis of von Willebrand disorder: use of multiple functional assays reduces diagnostic error rates. Lab Hematol. 2005;11:91-97. (Pubitemid 40975550)
8. Favaloro EJ, Bonar R, Kershaw G, et al. Laboratory diagnosis of von Willebrand's disorder: quality and diagnostic improvements driven by peer review in a multilaboratory test process. Haemophilia. 2004;10:232-242. (Pubitemid 38584794)
9. Peerschke EI, Castellone DD, Ledford-Kraemer M, et al. Laboratory assessment of factor VIII inhibitor titer: the North American Specialized Coagulation Laboratory Association experience. Am J Clin Pathol. 2009;131:552-558.
10. Van Cott EM, Ledford-Kraemer M, Meijer P, et al. Protein S assays: an analysis of North American Specialized Coagulation Laboratory Association proficiency testing. Am J Clin Pathol. 2005;123:778-785. (Pubitemid 40586497)
11. Favaloro EJ, Bonar R, Sioufi J, et al. Laboratory diagnosis of von Willebrand disorder: current practice in the southern hemisphere. Am J Clin Pathol. 2003;119:882-893. (Pubitemid 37047851)
12. Preston FE. Assays for von Willebrand factor functional activity: a UK NEQAS survey. National External Quality Assessment Scheme [published correction appears in Thromb Haemost. 1999;81:478]. Thromb Haemost. 1998;80:863.
13. Federici AB, Canciani MT, Forza I, et al. Ristocetin cofactor and collagen binding activities normalized to antigen levels for a rapid diagnosis of type 2 von Willebrand disease: single center comparison of four different assays [letter]. Thromb Haemost. 2000;84:1127-1128. (Pubitemid 32014059)
14. Nitu-Whalley IC, Riddell A, Lee CA, et al. Identification of type 2 von Willebrand disease in previously diagnosed type 1 patients: a reappraisal using phenotypes, genotypes and molecular modelling. Thromb Haemost. 2000;84:998-1004. (Pubitemid 32014035)
15. Piñol M, Sales M, Costa M, et al. Evaluation of a new turbidimetric assay for von Willebrand factor activity useful in the general screening of von Willebrand disease [letter]. Haematologica. 2007;92:712-713. (Pubitemid 350144282)
16. Sucker C, Senft B, Scharf RE, et al. Determination of von Willebrand factor activity: evaluation of the HaemosIL assay in comparison with established procedures. Clin Appl Thromb Hemost. 2006;12:305-310. (Pubitemid 44400841)