| Frequency analysis in different types of paroxysmal atrial fibrillation. | |
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MedLine Citation:
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PMID: 16580528 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVES: This study sought to investigate the regional frequency distribution from multiple bi-atrial sites in different types of paroxysmal atrial fibrillation (AF). BACKGROUND: A previous study showed a left atrium (LA) to right atrium (RA) frequency gradient in patients with paroxysmal AF. METHODS: Forty-four patients (age = 60 +/- 16, male patients = 27) with paroxysmal AF originating from the pulmonary veins (PVs) (n = 31) or superior vena cava (SVC) (n = 13) were included. Frequency analysis was performed on the intracardiac electrograms (7 s, 1 kHz/channel) recorded from PV, posterior LA, coronary sinus (CS), posterolateral RA, and SVC. The largest peak frequency was identified as the dominant frequency (DF). RESULTS: In the PV-AF patients, there was a frequency gradient from the PV ostium to the LA, RA, and SVC (8.5 +/- 3.3 Hz vs. 5.9 +/- 1.1 Hz vs. 5.2 +/- 0.85 Hz vs. 5.5 +/- 0.48 Hz, respectively, p < 0.001). The highest DFs were mostly located at the arrhythmogenic PV ostium (58%). The DFs of the arrhythmogenic PV and PV ostium were significantly higher than those of the non-arrhythmogenic PVs and PV ostia (p < 0.05). In the SVC-AF patients, there was a frequency gradient from the SVC to the RA, LA, and PV (8.0 +/- 2.4 Hz vs. 5.9 +/- 1.1 Hz vs. 5.9 +/- 0.7 Hz vs. 5.8 +/- 0.7 Hz, respectively, p = 0.001). The highest DFs were mostly located inside the SVC (77%) instead of the SVC ostium (as compared with PV-AF patients, p = 0.035). CONCLUSIONS: The location of the highest DF depended on the arrhythmogenic PV or SVC. A frequency gradient was present between the arrhythmogenic thoracic vein and atrium in all patients. |
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Authors:
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Yenn-Jiang Lin; Ching-Tai Tai; Tsair Kao; Han-Wen Tso; Satoshi Higa; Hsuan-Ming Tsao; Shih-Lin Chang; Ming-Hsiung Hsieh; Shih-Ann Chen |
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Publication Detail:
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Type: Journal Article Date: 2006-03-15 |
Journal Detail:
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Title: Journal of the American College of Cardiology Volume: 47 ISSN: 1558-3597 ISO Abbreviation: J. Am. Coll. Cardiol. Publication Date: 2006 Apr |
Date Detail:
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Created Date: 2006-04-03 Completed Date: 2006-05-26 Revised Date: 2006-06-08 |
Medline Journal Info:
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Nlm Unique ID: 8301365 Medline TA: J Am Coll Cardiol Country: United States |
Other Details:
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Languages: eng Pagination: 1401-7 Citation Subset: AIM; IM |
Affiliation:
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Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Atrial Fibrillation
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classification*,
diagnosis,
physiopathology* Atrial Function* Coronary Vessels / physiopathology Electrophysiologic Techniques, Cardiac* Female Humans Male Middle Aged Pulmonary Veins / physiopathology Time Factors Vena Cava, Superior / physiopathology |
| Comments/Corrections | |
Comment In:
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J Am Coll Cardiol. 2006 Apr 4;47(7):1408-9
[PMID:
16580529
]
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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