Abstract:
BACKGROUND:Deep vein thrombosis (DVT) is a common multi-factorial disease with a partially understood aetiology. Although the roles of high factor (F)VIII and von Willebrand factor (VWF) levels are recognized, that of ADAMTS13 is still unclear. AIM:To assess the association between ADAMTS13 activity levels, VWF antigen (VWF:Ag) and FVIII coagulant activity (FVIII:C) levels and DVT. MATERIALS AND METHODS:365 Italian DVT patients and 292 age- and sex-matched controls were considered. Plasma ADAMTS13 activity was measured using FRETS-VWF73 assay. VWF:Ag and FVIII:C were measured using immunoassay and one-stage clotting assay (ACL TOP analyzer), respectively. Quartile analyses were performed to evaluate the individual association between ADAMTS13 activity, VWF:Ag, FVIII:C and DVT. The combined effect of high VWF levels (> 4th quartile) and low ADAMTS13 levels (< 1st quartile) was evaluated using binary variables. All models were age- and sex-adjusted. Estimated risks were reported as Odds ratio (OR) with 95% confidence intervals (CI). RESULTS:ADAMTS13 activity was lower in DVT patients (94% vs. 98% of controls). Patients with an ADAMTS13 activity <1st quartile (86%) showed a 1.6-fold increased risk of DVT (95%CI, 1.05-2.55). The combination of low ADAMTS13 activity and high VWF:Ag levels was associated with a 15-fold increased risk (95%CI, 7.80-33.80). VWF:Ag and FVIII:C were associated to DVT with a dose-response relationship. CONCLUSIONS:ADAMTS13 activity < 86% was associated with a moderate risk of DVT. The co-presence of low ADAMTS13 activity and high VWF levels resulted in a strong synergistic effect on DVT risk. The association of VWF:Ag and FVIII:C with DVT was confirmed.
journal_name
Thromb Resjournal_title
Thrombosis researchauthors
Pagliari MT,Boscarino M,Cairo A,Mancini I,Martinelli I,Bucciarelli P,Rossi F,Rosendaal FR,Peyvandi Fdoi
10.1016/j.thromres.2020.10.037subject
Has Abstractpub_date
2021-01-01 00:00:00pages
132-137eissn
0049-3848issn
1879-2472pii
S0049-3848(20)30593-4journal_volume
197pub_type
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