| Characterization of non-pulmonary vein foci with an EnSite array in patients with paroxysmal atrial fibrillation. | |
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MedLine Citation:
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PMID: 21097479 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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AIMS: Non-pulmonary vein (PV) foci are sometimes difficult to identify and eliminate. The EnSite array (EA) reveals the detailed beat-to-beat virtual activation. This study aimed to characterize non-PV foci using the EA. METHODS AND RESULTS: Sixty-five patients with paroxysmal atrial fibrillation (AF) were included. All had ectopy initiating AF and/or focal atrial tachycardia analysed using the EA. All patients underwent PV isolation (PVI) and additional ablation of non-PV foci if present. The EA revealed 59 PV foci in 48 patients (Group P) and 19 non-PV foci in 17 patients (Group N). In Group N, 12 patients (71%) also had 17 PV foci. The non-PV foci were frequently distributed in the left atrial (LA) roof (n = 5) and superior vena cava (n = 5). Pulmonary vein isolation during on-going AF terminated AF in 34 of 37 in Group P (92%) and 4 of 14 in Group N (29%) patients (P < 0.0001). All non-PV foci were eliminated by an EA-guided ablation. During a 23 ± 10 month follow-up, 11 patients (17%) had AF recurrences, mainly due to LA-PV reconnection. CONCLUSION: Non-PV foci are prevalent in the LA roof and SVC sites, but can originate from other sites as well. When non-PV foci are observed, PVI may be insufficient and should be supplemented with non-PV foci ablation. |
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Authors:
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Takanori Yamaguchi; Takeshi Tsuchiya; Koji Miyamoto; Yasutsugu Nagamoto; Naohiko Takahashi |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Europace : European pacing, arrhythmias, and cardiac electrophysiology : journal of the working groups on cardiac pacing, arrhythmias, and cardiac cellular electrophysiology of the European Society of Cardiology Volume: 12 ISSN: 1532-2092 ISO Abbreviation: Europace Publication Date: 2010 Dec |
Date Detail:
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Created Date: 2010-11-24 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 100883649 Medline TA: Europace Country: England |
Other Details:
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Languages: eng Pagination: 1698-706 Citation Subset: IM |
Affiliation:
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EP Expert Doctors-Team Tsuchiya, Koto 3-14-28, Kumamoto 862-0909, Japan. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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