| Stable and unstable ventricular tachycardias in patients with previous myocardial infarction: a clinically oriented strategy for catheter ablation. | |
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MedLine Citation:
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PMID: 17627109 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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OBJECTIVE: Catheter ablation of ventricular tachycardia (VT) after myocardial infarction (MI) can be complex and time-consuming. We only targeted the previously documented VTs and those with similar or longer cycle lengths. METHODS: 30 patients with VTs after MI were included in the study. Voltage mapping was performed using an electro-anatomic mapping system (CARTOT). Stable VTs were mapped during tachycardia and unstable VTs during sinus rhythm. RESULTS: Clinical VTs were stable in 16 (53%) and unstable in 14 (47%) patients, and ablation was successful in 11 (69%) and 9 patients (64%), respectively (p = 0.42). During follow-up (14 +/- 6 months), 4 patients (25%) treated for stable and 6 (43%) for unstable VTs had recurrences (p = 0.82); ablation was successful in none and 2 (33%) of them, respectively. Non-target VTs were inducible in 11 (55%) of 20 patients after successful ablation and non-inducible in 9 (45%). During follow-up, inducibility of non-target VTs did not predict recurrences (9 vs. 11%, p = 0.88). CONCLUSIONS: Catheter ablation of VTs after MI can be successfully performed. Acute success rates seem to be similar for stable and unstable VTs. VTs faster than those documented clinically exert a minor effect on VT recurrences during follow-up. |
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Authors:
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Rodolfo Ventura; Hanno U Klemm; Thomas Rostock; Boris Lutomsky; Tim Risius; Daniel Steven; Christian Weiss; Thomas Meinertz; Stephan Willems |
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Publication Detail:
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Type: Clinical Trial; Journal Article Date: 2007-07-10 |
Journal Detail:
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Title: Cardiology Volume: 109 ISSN: 1421-9751 ISO Abbreviation: Cardiology Publication Date: 2008 |
Date Detail:
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Created Date: 2007-12-06 Completed Date: 2008-01-18 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 1266406 Medline TA: Cardiology Country: Switzerland |
Other Details:
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Languages: eng Pagination: 52-61 Citation Subset: IM |
Copyright Information:
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(c) 2007 S. Karger AG, Basel |
Affiliation:
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Department of Cardiology, University Hospital Hamburg-Eppendorf, Hamburg, Germany. ventura@uke.uni-hamburg.de |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Catheter Ablation / adverse effects, methods* Electrophysiologic Techniques, Cardiac Female Humans Male Middle Aged Prospective Studies Tachycardia, Ventricular / diagnosis, therapy* Treatment Outcome |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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