| Cardiac arrhythmia management using a noncontact mapping multielectrode array. | |
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MedLine Citation:
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PMID: 20155856 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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BACKGROUND: The multielectrode array (MEA) enables noncontact mapping of cardiac arrhythmias; our experience is reviewed and reported. HYPOTHESIS: The MEA has a role as first line therapy in multiple arrhythmias. METHODS: Retrospective and prospective analysis of all consecutive cases performed using the MEA over a 6 year period. RESULTS: Electrophysiological study and catheter ablation, 46% under general anaesthesia, using radiofrequency (RF), cryothermal and low energy direct current (DC) was performed in 66 procedures on 31 females and 29 males, average age 50.2 yrs (19.3-81.6); 8 patients underwent multiple procedures. 24 patients (36%) had undergone past ablation for the same arrhythmia. A wide variety of arrhythmias from all chambers were treated, majority right atrial (56%) and right ventricular (29%). Procedural success was complete in 77.4% and partial/indeterminate in 11.3%, highest in right atrial tachycardia, right ventricular outflow tract ectopy and typical atrial flutter (79, 82 and 100%). RF energy was most commonly used (67%) and DC carried 100% success. Ablation was delivered at 'early activation' and 'breakout' in focal arrhythmias. In re-entrant circuits linear ablation transecting path of activation extending to regions of functional/anatomic block was performed. Two of 7 complications were attributed to the MEA: groin haematomas. At mean 12.4 mo follow up 56% were arrhythmia free, 15% asymptomatic or minimally symptomatic and 12 patients had new arrhythmias. CONCLUSIONS: The MEA is effective, safe and suitable for first line therapy in multiple cardiac arrhythmias particularly in the right heart. Further study is warranted comparing it to other mapping techniques. |
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Authors:
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Andrei Catanchin; Reginald Liew; Elijah R Behr; David E Ward |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Clinical cardiology Volume: 33 ISSN: 1932-8737 ISO Abbreviation: Clin Cardiol Publication Date: 2010 Mar |
Date Detail:
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Created Date: 2010-03-22 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 7903272 Medline TA: Clin Cardiol Country: United States |
Other Details:
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Languages: eng Pagination: E19-24 Citation Subset: IM |
Copyright Information:
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Copyright (c) 2010 Wiley Periodicals, Inc. |
Affiliation:
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Division of Cardiac and Vascular Sciences, St George's University of London, Cranmer Terrace, London, UK. andrei.catanchin@gmail.com |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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