| Surface ECG vector characteristics of organized and disorganized atrial activity during atrial fibrillation. | |
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MedLine Citation:
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PMID: 15534816 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: The aim of this study was to examine atrial organization from vectorcardiograms (VCGs) derived from the surface ECG of atrial fibrillatory waves. METHODS: We retrieved ECGs recorded during ventricular asystole from 22 patients with AF undergoing ablation of the AV junction. The synthesized VCG of each f-wave cycle of each ECG and its plane of best fit, described by azimuth and elevation angles relative to the frontal plane, were computed. RESULTS: Fifteen of the 22 ECGs had at least 30% of the planes in a single 30-degree region of azimuth angles. Of these 15, 12 had the greatest percentage of planes with azimuth angles within 30 degrees of the sagittal plane; two were near the frontal plane; and one near the right anterior oblique plane. CONCLUSIONS: Varying degrees of organization were observed from VCGs of fibrillatory waves with the more organized examples having planes predominately near the sagittal plane. |
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Authors:
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Jason Ng; Alan V Sahakian; Westby G Fisher; Steven Swiryn |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: Journal of electrocardiology Volume: 37 Suppl ISSN: 0022-0736 ISO Abbreviation: J Electrocardiol Publication Date: 2004 |
Date Detail:
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Created Date: 2004-11-09 Completed Date: 2005-03-03 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0153605 Medline TA: J Electrocardiol Country: United States |
Other Details:
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Languages: eng Pagination: 91-7 Citation Subset: IM |
Affiliation:
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Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, USA. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Atrial Fibrillation / etiology, physiopathology* Atrioventricular Node / surgery Catheter Ablation Female Heart Arrest, Induced Heart Atria / physiopathology* Heart Ventricles / physiopathology Humans Imaging, Three-Dimensional Male Pacemaker, Artificial / classification Signal Processing, Computer-Assisted Vectorcardiography* / classification, methods |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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