Jadidi, Impact of Atrial Fibrosis on Electrogram Characteristics in Persistent Atrial Fibrillation
نویسندگان
چکیده
Amir S. Jadidi MD; Hubert Cochet MD; Ashok J Shah MD; Steven J. Kim MEEng; Edward Duncan MD; Shinsuke Miyazaki MD; Maxime Sermesant PhD; Heiko Lehrmann MD; Matthieu Lederlin MD; Nick Linton MEng MRCP; Andrei Forclaz MD; Isabelle Nault MD FRCPC; Lena Rivard MD; Matthew Wright MBBS, Ph.D; Xingpeng Liu MD; Daniel Scherr, MD; Stephen B. Wilton, MD; Laurent Roten, MD; Patrizio Pascale, MD; Nicolas Derval MD; Frédéric Sacher MD; Sebastien Knecht MD; Cornelius Keyl MD; Mélèze Hocini MD, Michel Montaudon MD; Francois Laurent MD; Michel Haïssaguerre MD, and Pierre Jais
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Changing activation pattern of the coronary sinus during ongoing perimitral flutter.
A 68-year-old man without any structural heart disease underwent ablation of persistent atrial fibrillation in 2008 (isolation of 4 pulmonary veins and electrogram-based ablation of the posteroinferior left atrium) and 2009 (left pulmonary vein reisolation and linear ablation of the left atrial [LA] roof with demonstration of bidirectional block). Recently, he was referred for the ablation of r...
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RATIONALE Electrogram-based catheter ablation, targeting complex fractionated atrial electrograms (CFAEs), is empirically known to be effective in halting persistent/permanent atrial fibrillation (AF). However, the mechanisms underlying CFAEs and electrogram-based ablation remain unclear. OBJECTIVE Because atrial fibrosis is associated with persistent/permanent AF, we hypothesized that electr...
متن کاملNature of electrogram fractionation during atrial fibrillation.
The study by Jadidi et al1 described the locations of areas of continuously fractionated atrial electrograms during atrial fibrillation (AF) using high-resolution endocardial mapping in 9 patients with paroxysmal AF and 9 patients with persistent AF. This study then correlated these areas with the locations of fractionated atrial potentials during sinus rhythm and coronary sinus (CS) pacing in ...
متن کاملFunctional nature of electrogram fractionation demonstrated by left atrial high-density mapping.
BACKGROUND Complex fractionated atrial electrograms (CFAE) are targets of atrial fibrillation (AF) ablation. Serial high-density maps were evaluated to understand the impact of activation direction and rate on electrogram (EGM) fractionation. METHODS AND RESULTS Eighteen patients (9 persistent) underwent high-density, 3-dimensional, left-atrial mapping (>400 points/map) during AF, sinus (SR),...
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Complex fractionated atrial electrogram (CFAE) ablation is one successful approach for treating patients with persistent atrial fibrillation (AF), along with strategies that incorporate pulmonary vein isolation and linear lesions. In this issue of Circulation: Arrhythmia and Electrophysiology, Oral et al1 investigate the effect of right atrial CFAE focused ablation in patients with long-lasting...
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