November 2025 QQ Summary: Historic Coag Factor Nomenclature

Our November Quick Question summary about Stuart-Prower Factor, linked to a 2023 article by Dave McGlasson about coagulation factor nomenclature. The summary and McGlasson’s article attracted a comment from Dr. Emmanuel Favaloro, which described the nomenclature of traditional and current VWF activity assays.  Dr. Favaloro cited three open-access articles on this topic (click to obtain the article)

• Mazurier C, Rodeghiero F; von Willebrand Factor Subcommittee of the Scientific and Standardization Committee of the International Society on Thrombosis and Haemostasis. Recommended abbreviations for von Willebrand Factor and its activities. Thromb Haemost. 2001;86:712. PMID: 11522027.
• Bodó I, Eikenboom J, Montgomery R, Patzke J, Schneppenheim R, Di Paola J; von Willebrand factor Subcommittee of the Standardization and Scientific Committee of the International Society for Thrombosis and Haemostasis. Platelet-dependent von Willebrand factor activity. Nomenclature and methodology: communication from the SSC of the ISTH. J Thromb Haemost. 2015 ;13:1345-50. doi: 10.1111/jth.12964. PMID: 25858564; PMCID: PMC5576173.
• Favaloro EJ, Pasalic L. Acquired von Willebrand syndrome in children. Res Pract Thromb Haemost. 2025 Sep 3;9(6):103169. doi: 10.1016/j.rpth.2025.103169. PMID: 41079432; PMCID: PMC12509100.

Additionally, please refer to the following link for a summary table from Sarkar MK, Fritsma GA, Hemorrhagic Disorders and Laboratory Assessment in Keohane, EM, Butina MM, Mirza KM, Walenga JM. Rodak’s Hematology: Clinical Principles and Applications, Seventh Edition, Elsevier, 2025.