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Posch, F; Gebhart, J; Rand, JH; Koder, S; Quehenberger, P; Pengo, V; Ay, C; Pabinger, I.
Cardiovascular risk factors are major determinants of thrombotic risk in patients with the lupus anticoagulant.
BMC Med. 2017; 15(1):54-54 Doi: 10.1186/s12916-017-0807-7 [OPEN ACCESS]
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Posch Florian

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Patients with the lupus anticoagulant (LA) are at an increased risk of thrombotic events, which in turn increase the risk of death. Understanding the determinants of thrombotic risk in patients with LA may pave the way towards targeted thromboprophylaxis. In the Vienna Lupus Anticoagulant and Thrombosis Study (LATS), we systematically evaluate risk factors for thrombotic events in patients with LA. We followed 150 patients (mean age: 41.3 years, female gender: n = 122 (81.3%), history of thrombosis or pregnancy complications: n = 111 (74.0%)), who tested repeatedly positive for LA until development of thrombosis, death, or censoring. The primary endpoint was a composite of arterial or venous thrombotic events (TEs). During a median follow-up of 9.5 years (range: 12 days-13.6 years) and 1076 person-years, 32 TEs occurred (arterial: n = 16, venous: n = 16; cumulative 10-year TE incidence: 24.3%). A prolonged lupus-sensitive activated partial thromboplastin time (aPTT-LA) (adjusted subdistribution hazard ratio (SHR) = 2.31, 95% CI: 1.07--5.02), diabetes (adjusted SHR = 4.39, 95% CI: 1.42-13.57), and active smoking (adjusted SHR = 2.31, 95% CI: 1.14-5.02) emerged as independent risk factors of both arterial and venous thrombotic risk. A risk model that includes a prolonged lupus-sensitive aPTT, smoking, and diabetes enabled stratification of LA patients into subgroups with a low, intermediate, and high risk of thrombosis (5-year TE risk of 9.7% (n = 77), 30.9% (n = 51), and 56.8% (n = 22). Long-term thrombotic risk in patients with LA is clustered within subjects harboring typical cardiovascular risk factors in addition to a prolonged lupus-sensitive aPTT, whereas patients with none of these risk factors represent a large subgroup with a low risk of thrombosis.
Find related publications in this database (using NLM MeSH Indexing)
Adult -
Cardiovascular Diseases - complications
Female -
Humans -
Incidence -
Lupus Coagulation Inhibitor - adverse effects
Male -
Middle Aged -
Risk Factors -
Thrombosis - epidemiology
Thrombosis - etiology
Young Adult -

Find related publications in this database (Keywords)
Lupus anticoagulant
Antiphospholipid antibody syndrome
Thrombotic risk
Risk stratification model
Second hit
Cardiovascular risk factors
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