Left atrial pressure and dominant frequency of atrial fibrillation in humans
نویسندگان
چکیده
منابع مشابه
Effect of adenosine triphosphate on left atrial electrogram interval and dominant frequency in human atrial fibrillation.
BACKGROUND Complex fractionated atrial electrograms (CFAEs) and high dominant frequency (DF) are targets for atrial fibrillation (AF) ablation. Although adenosine triphosphate (ATP) is known to promote AF by shortening the atrial refractory period, its role in the pathogenesis of CFAEs and DF during AF is not fully understood. METHODS We recorded electrical activity from a 64-electrode basket...
متن کاملComplex fractionated atrial electrograms, high dominant frequency regions, and left atrial voltages during sinus rhythm and atrial fibrillation
BACKGROUND Ablation targeting complex fractionated atrial electrograms (CFAEs) or high dominant frequency (DF) sites is generally effective for persistent atrial fibrillation (AF). CFAEs and/or high DF sites may exist in low-voltage regions, which theoretically represent abnormal substrates. However, whether CFAEs or high DF sites reflect low voltage substrates during sinus rhythm (SR) is unkno...
متن کاملThe Spatiotemporal Stability of Dominant Frequency Sites in In-Silico Modeling of 3-Dimensional Left Atrial Mapping of Atrial Fibrillation
BACKGROUND We previously reported that stable rotors were observed in in-silico human atrial fibrillation (AF) models, and were well represented by dominant frequency (DF). We explored the spatiotemporal stability of DF sites in 3D-AF models imported from patient CT images of the left atrium (LA). METHODS We integrated 3-D CT images of the LA obtained from ten patients with persistent AF (mal...
متن کاملLeft atrial epicardial adiposity and atrial fibrillation.
BACKGROUND Atrial fibrillation (AF) has been linked to inflammatory factors and obesity. Epicardial fat is a source of several inflammatory mediators related to the development of coronary artery disease. We hypothesized that periatrial fat may have a similar role in the development of AF. METHODS AND RESULTS Left atrium (LA) epicardial fat pad thickness was measured in consecutive cardiac CT...
متن کاملReview of Dominant Frequency Analysis in Atrial Fibrillation.
Significant advancements have been made in the technology and approach to catheter ablation of atrial fibrillation (AF). Pulmonary vein isolation has emerged as the dominant strategy in this procedure and has fueled innovations in catheter design as well as various mapping and navigation systems. Mapping and targeting of complex fractionated atrial electrograms has also emerged as an additional...
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ژورنال
عنوان ژورنال: Heart Rhythm
سال: 2011
ISSN: 1547-5271
DOI: 10.1016/j.hrthm.2010.10.030