Author:
Gjermeni Diona,Anfang Viktoria,Szabó Sofia,Vetter Hannah,Venhoff Ana C.,Leggewie Stefan,Hesselbarth David,Trenk Dietmar,Buechsel Martin,Westermann Dirk,Olivier Christoph B.
Abstract
Abstract
Background
This study aimed to evaluate the association of antiphospholipid antibodies (aPL) and conventional markers of coagulation with ischemic and bleeding risk in patients with atrial fibrillation (AF) undergoing percutaneous coronary intervention (PCI).
Methods
In this prospective two-center observational cohort study, patients with AF and an indication for oral anticoagulation (OAC) were enrolled after PCI. Blood was drawn on day 1–3 after PCI. Dilute Russell’s viper venom time was used to determine lupus anticoagulant (LA) in OAC-free plasma. Anti-cardiolipin (aCL) IgG, IgM, and anti-β2-Glycoprotein 1 (aβ2GP1) IgG were analyzed by enzyme-linked immunosorbent assay (ELISA). Fibrinogen (FIB), d-dimer, and prothrombin fragment 1 and 2 (PF 1 + 2) were measured in citrated plasma. The primary ischemic outcome was time to major adverse cardiovascular events (MACE; death, myocardial infarction, or stroke) assessed at 6 months. Bleeding was defined according to International Society on Thrombosis and Haemostasis.
Results
158 patients were enrolled between May 2020 and May 2021 on day 1–3 after PCI. The median age was 78 years (interquartile range [IQR] 72–82), 111 (70%) were male, and 39 (25%) presented with acute coronary syndrome. D-dimer was elevated in 74 (47%) patients, FIB was increased in 40 (25%) and PF1 + 2 in 68 (43%) patients. 32 (20%) patients had ≥ 1 antiphospholipid antibody elevated (aPL; LA: 19 [12%], aCL: 14 [9%], aβ2GP1: 2 [1%]). The presence of aPL was neither significantly associated with MACE (HR 1.46, 95% CI [0.39–5.49], p = 0.579), nor bleeding (HR 1.07 [0.30–3.84], p = 0.917). Elevated d-dimer was significantly associated with higher risk for MACE (HR 5.06 [1.09–23.41], p = 0.038) and major bleeding (HR 7.04 [1.58–31.47], p = 0.011). Elevated D-dimer increased the predictive capacity of HAS-BLED for major bleedings (HAS-BLED: AUC 0.71 [0.60–0.83] vs. HAS-BLED + d-dimer: AUC 0.79 [0.70–0.88]; p = 0.025). Increased levels of FIB were associated with higher risk for MACE (HR 3.65 [1.11–11.96], p = 0.033).
Conclusion
Biomarkers of coagulation might be suitable to assess ischemic and bleeding risk in patients with AF following PCI.
Funder
Universitätsklinikum Freiburg
Publisher
Springer Science and Business Media LLC
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