Key clinical point: The FVIII/W (factor VIII:C/von Willebrand factor antigen) ratio may be an accurate biomarker to predict recovery and/or relapse in patients with acquired hemophilia A.
Major finding: Among 5 patients who relapsed during the study, the FVIII/W ratio was the first abnormal result detected in 4 cases.
Study details: A retrospective analysis of 64 patients with acquired hemophilia A.
Disclosures: No funding sources were reported. The authors reported having no conflicts of interest.
Trossaert M et al. Haemophilia. 2019 May 2. doi: 10.1111/hae.13752.