Please use this identifier to cite or link to this item: http://ahro.austin.org.au/austinjspui/handle/1/9447
Title: Epicardial radiofrequency ablation of both atria in the treatment of atrial fibrillation: experience in patients.
Authors: Raman, Jai S;Ishikawa, Susumu;Power, JM
Affiliation: Department of Cardiac Surgery, Austin and Repatriation Medical Centre, University of Melbourne, Victoria, Australia. jai.raman@armc.org.au
Issue Date: 1-Nov-2002
Citation: The Annals of Thoracic Surgery; 74(5): 1506-9
Abstract: Despite success with the Maze procedure and its modifications in treating atrial fibrillation, longer procedure times and increased morbidity have precluded widespread use. The operative treatment for atrial fibrillation associated with aortic valve disease and ischemic heart diseases have not been established. We report the early results of epicardial radiofrequency coagulation on both atria and discuss the availability of this procedure.The Australasian database of radiofrequency ablation lists 130 patients with established or frequent intermittent atrial fibrillation that underwent various cardiac surgical procedures between March 2000 and March 2002. Forty patients without mitral valve disease underwent epicardial radiofrequency coagulation on both atria. Twenty-eight patients were in established chronic atrial fibrillation, 9 in paroxysmal atrial fibrillation, and 3 patients had atrial flutter. The primary surgical procedures were coronary artery bypass grafting in 19 patients, aortic valve replacement in 9, coronary artery bypass grafting plus aortic valve replacement in 8, and other procedures in 4 patients.The procedure increased the cross-clamp time by a mean of 10 minutes. Three patients required defibrillation postoperatively, within the first 3 months and have since stayed in sinus rhythm. One patient had late atrial flutter that was cardioverted to sinus rhythm. Sinus recovery rate was 93.7% (15 of 16 patients) at 6 months and 100% in 8 patients reviewed at 12 months. Atrial contractility was maintained.Epicardial radiofrequency coagulation may be a very effective way of converting patients with atrial fibrillation into sinus rhythm.
Internal ID Number: 12440600
URI: http://ahro.austin.org.au/austinjspui/handle/1/9447
URL: http://www.ncbi.nlm.nih.gov/pubmed/12440600
Type: Journal Article
Subjects: Aged
Aged, 80 and over
Atrial Fibrillation.pathology.therapy
Female
Follow-Up Studies
Heart Atria.pathology
Humans
Hyperthermia, Induced
Male
Microwaves
Middle Aged
Outcome and Process Assessment (Health Care)
Pericardium.pathology
Appears in Collections:Journal articles

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