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BioMed Research International
Volume 2017, Article ID 3678017, 10 pages
Research Article

Intracardiac Hemostasis and Fibrinolysis Parameters in Patients with Atrial Fibrillation

1Division of Clinical Laboratory Sciences, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
2Institute of Cardiology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary
3Department of Neurology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary

Correspondence should be addressed to Zsuzsa Bagoly; uh.bedinu.dem@ylogab

Received 13 February 2017; Revised 12 May 2017; Accepted 24 May 2017; Published 21 June 2017

Academic Editor: Christof Kolb

Copyright © 2017 Noémi Klára Tóth et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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, -plasmin inhibitor, plasmin--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.