| Atrial flutter after surgical radiofrequency ablation of the left atrium for atrial fibrillation. | |
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MedLine Citation:
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PMID: 15620925 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: Left atrial radiofrequency ablation is the most common technique for the treatment of atrial fibrillation during mitral valve surgery. Reported failure rates range between 15% and 30%, with some patients remaining in atrial fibrillation and others experiencing atrial flutter. The incidence and nature of the postoperative atrial flutter is not yet well defined. METHODS: The study group consisted of 50 patients with atrial fibrillation who underwent mitral valve surgery combined with left atrial radiofrequency ablation, and were followed for a mean period of 15 +/- 7 months. The majority of patients (39; 78%) had persistent or permanent atrial fibrillation. Placement of the ablation lines was as follows: encircling the pulmonary veins, isolating the base of the left atrial appendage, and bridging the lateral or posterior mitral annulus and the margin of the pulmonary vein or the appendage-encircling ablation lines. RESULTS: There were three hospital deaths (6%). Thirty-four (72%) patients were free of any atrial tachyarrhythmia events, and 37 (79%) patients were in sinus rhythm by the end of the study's follow-up. During the follow-up, 6 patients (12.7%) experienced atrial flutter and 1 patient had atrial tachycardia. Electrophysiologic study was performed in 5 of 6 patients with postoperative atrial flutter. In 4 of them, the study findings were consistent with left atrial flutter. One patient with typical isthmus-dependent right atrial flutter underwent successful ablation. CONCLUSIONS: Left atrial surgical radiofrequency ablation is associated with a high rate of postoperative atrial flutters that appear to be predominantly of left-sided origin. |
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Authors:
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Gregory Golovchiner; Alexander Mazur; Alex Kogan; Boris Strasberg; Yaron Shapira; Menachem Fridman; Jairo Kuzniec; Bernardo A Vidne; Ehud Raanani |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The Annals of thoracic surgery Volume: 79 ISSN: 1552-6259 ISO Abbreviation: Ann. Thorac. Surg. Publication Date: 2005 Jan |
Date Detail:
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Created Date: 2004-12-28 Completed Date: 2005-08-12 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 15030100R Medline TA: Ann Thorac Surg Country: Netherlands |
Other Details:
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Languages: eng Pagination: 108-12 Citation Subset: AIM; IM |
Affiliation:
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Department of Cardiology, Rabin Medical Center, Petah Tiqwa, Israel. |
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Aged Atrial Fibrillation / etiology, surgery* Atrial Flutter / epidemiology*, etiology Cardiomyopathy, Hypertrophic / complications, surgery Catheter Ablation* Female Follow-Up Studies Heart Atria / surgery Heart Valve Prosthesis Implantation* Hospital Mortality Humans Incidence Male Middle Aged Mitral Valve / surgery Mitral Valve Insufficiency / complications, surgery* Postoperative Complications / epidemiology*, etiology Rheumatic Heart Disease / complications, surgery Treatment Outcome Tricuspid Valve Insufficiency / complications, surgery |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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