| Ablation of right-sided accessory pathways with atrial insertion far from the tricuspid annulus using an electroanatomical mapping system. | |
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MedLine Citation:
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PMID: 21087327 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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BACKGROUND: It is difficult to ablate a right-sided accessory pathway (AP) with atrial insertion far from the tricuspid annulus (TA). We report our initial experience of ablating this rare AP by a 3-dimensional electroanatomical mapping system (CARTO). METHODS: From January of 2006 to April of 2008, 18 patients with right-sided APs who failed previous outside ablations were enrolled in this study. Retrograde AP conduction was mapped during pacing at the right ventricular apex by activation-mapping the right atrium (RA) using a 3-dimensional electroanatomical mapping system. AP atrial insertion was defined as the earliest retrograde atrial activations and successful ablation of the APs at this site. RESULTS: Among the 18 patients who had failed previous ablation, 10 patients (7 patients with right manifest APs and 3 patients with right conceal APs) had atrial insertions far from the TA. Of the 10 patients, the atrial insertions were found at the base of the RA appendage in 3 patients, at the high lateral RA in 5 patients, at the low lateral RA in other 2 patients. Ablation at the atrial insertions successfully abolished the AP conduction. The mean distance between the atrial insertion sites and the TA was 20.2 ± 2.7 mm. No patients reported recovered AP conduction or recurrent tachycardias after 6-month follow-up. CONCLUSIONS: The right-sided APs may have atrial insertion far from the TA. These uncommon variation of APs can be reliably identified and ablated using CARTO system. |
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Authors:
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De-Yong Long; Jian-Zeng Dong; Xing-Peng Liu; Ri-Bo Tang; Man Ning; Ling-Yun Gao; Rong-Hui Yu; Dong-Ping Fang; Chen-Xi Jiang; Yi-Qiang Yuan; Cai-Hua Sang; Xian-Dong Yin; Gang Chen; Xin-Yong Zhang; Cui Liang; Chang-Sheng Ma |
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Publication Detail:
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Type: Journal Article Date: 2010-11-18 |
Journal Detail:
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Title: Journal of cardiovascular electrophysiology Volume: 22 ISSN: 1540-8167 ISO Abbreviation: J. Cardiovasc. Electrophysiol. Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-05-12 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9010756 Medline TA: J Cardiovasc Electrophysiol Country: United States |
Other Details:
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Languages: eng Pagination: 499-505 Citation Subset: IM |
Copyright Information:
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© 2010 Wiley Periodicals, Inc. |
Affiliation:
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Cardiology Department, Beijing An Zhen Hospital, Capital Medical University, Beijing, China. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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