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• W2155374920 abstract "CFAEs and Autonomic Nervous System. Background: Complex fractionated atrial electrograms (CFAEs) are supposed to be related to structural and electrical remodeling. Animal studies suggest a role of the autonomic nervous system (ANS). However, this has never been studied in humans. Objective: The goal of this study was to investigate the influence of ANS on CFAEs in patients with idiopathic atrial fibrillation (AF). Methods: Thirty-six patients (28 men, 55 ± 9 years) were included before undergoing catheter ablation. In the 24 hours preceding the procedure, 20 patients were in AF (group 1) and 16 were in sinus rhythm (SR, group 2). With 2 decapolar catheters, 1 in the right atrium (RA) and 1 in the left atrium (LA), 20 unipolar electrograms were simultaneously recorded during a 100-second AF-period (in group 2 after induction of AF). After atropine and metoprolol administration, a second 100-second AF-period was recorded 30 minutes later. Five patients of group 2 served as controls and did not receive atropine and metoprolol prior to the second recording. CFAEs were assessed and the prevalence of CFAEs was expressed as percentage of the recording time. Results: The prevalence of CFAEs was greater in group 1 than in group 2 in both RA and LA (P = 0.026, P < 0.001, respectively). Atropine and metoprolol significantly reduced CFAEs in group 1 (P < 0.001) and prevented the time-dependent increase of CFAEs in group 2. Conclusion: The prevalence of CFAEs is greater in long-lasting AF episodes. Atropine and metoprolol administration reduces CFAEs in both atria. Thus, CFAEs are at least partly influenced by the ANS. (J Cardiovasc Electrophysiol, Vol. 23, pp. 26-33, January 2012)" @default.
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• W2155374920 date "2011-08-04" @default.
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• W2155374920 title "Complex Fractionated Electrograms in the Right Atrial Free Wall and the Superior/Posterior Wall of the Left Atrium Are Affected by Activity of the Autonomic Nervous System" @default.
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• W2155374920 doi "https://doi.org/10.1111/j.1540-8167.2011.02145.x" @default.
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