TY - JOUR A2 - Kolb, Christof AU - Tóth, Noémi Klára AU - Csanádi, Zoltán AU - Hajas, Orsolya AU - Kiss, Alexandra AU - Nagy-Baló, Edina AU - Kovács, Kitti Bernadett AU - Sarkady, Ferenc AU - Muszbek, László AU - Bereczky, Zsuzsanna AU - Csiba, László AU - Bagoly, Zsuzsa PY - 2017 DA - 2017/06/21 TI - Intracardiac Hemostasis and Fibrinolysis Parameters in Patients with Atrial Fibrillation SP - 3678017 VL - 2017 AB - Aims. To identify intracardiac hemostasis or fibrinolysis abnormalities, which are associated with atrial fibrillation (AF) and increase the risk of thromboembolism. Patients and Methods. Patient group consisted of 24 patients with AF and control group included 14 individuals with other supraventricular tachycardia undergoing transcatheter radiofrequency ablation. Blood samples were drawn from the femoral vein (FV), left atrium (LA), and left atrial appendage (LAA) before the ablation procedure. Fibrinogen, factor VIII (FVIII) and factor XIII activity, von Willebrand factor (VWF) antigen, thrombin-antithrombin (TAT) complex, quantitative fibrin monomer (FM), plasminogen, α2-plasmin inhibitor, plasmin-α2-antiplasmin (PAP) complex, PAI-1 activity, and D-dimer were measured from all samples. Results. Levels of FVIII and VWF were significantly elevated in the FV and LA of AF patients as compared to controls. TAT complex, FM, PAP complex, and D-dimer levels were significantly elevated in the LA as compared to FV samples in case of both groups, indicating a temporary thrombotic risk associated with the catheterization procedure. Conclusions. None of the investigated hemostasis or fibrinolysis parameters showed significant intracardiac alterations in AF patients as compared to non-AF controls. AF patients have elevated FVIII and VWF levels, most likely due to endothelial damage, presenting at both intracardiac and systemic level. SN - 2314-6133 UR - https://doi.org/10.1155/2017/3678017 DO - 10.1155/2017/3678017 JF - BioMed Research International PB - Hindawi KW - ER -