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: Antiphospholipid (aPL) antibodies can arise transiently at times of viral diseases. The objective of this work was to evaluate the incidence of aPL antibodies in patients hospitalized in conventional unit for coronavirus disease 2019 (COVID-19) infection and confirmed venous thromboembolic events (VTE) associated with aPL antibodies. 41 patients infected with COVID-19 were tested for aPL antibodies. None had reported history of aPL syndrome. Arterial and venous duplex ultrasound of lower limbs was performed in all patients at Day 0 and Day 5. All patients had antithrombotic-prophylaxis upon admission using lower molecular weight heparin with Enoxaparin. Biological parameters were collected and analyzed. Nine patients (22%) developed VTE and seven (17%) were positive for aPL antibodies of which five had isolated positive lupus anticoagulant. The sixth patient was double aPL positive IgM anticardiolipin (147.8âU/ml) and anti-Beta2 Glyco protein 1 (97.3âU/ml) antibodies. The seventh was triple positive, IgM anticardiolipin 85.6âUI/ml, IgM anti-Beta2 Glyco protein 1 63.0âU/ml and positive lupus anticoagulant. Among the seven patients with aPL antibodies 2 (28.60%) had VTE. However, the incidence of VTE in patients negative for aPL antibodies was also significant as 20.6% (seven of 34). aPL antibodies were significantly associated with the transfer to ICUs of, Pâ=â0.018. Not only the incidence of aPL antibodies was quite significant within our cohort, but also we observed 28.6% of VTE in aPL-positive patients. We strongly recommend routine testing for aPL antibodies in COVID-19 patients and systematic screening with duplex ultrasound search of vascular complications.
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Blood_coagul._fibrinolysis
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Antiphospholipid antibodies in patients with coronavirus disease 2019 infection hospitalized in conventional unit
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