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  • Title: [Epicardial ablation of atrial fibrillation during heart valve surgery].
    Author: Benussi S, Nascimbene S, Agricola E, Caldarola A, Casati V, La Canna G, Pappone C, Alfieri O.
    Journal: Ital Heart J Suppl; 2001 Apr; 2(4):396-401. PubMed ID: 19397014.
    Abstract:
    BACKGROUND: We report the results of an intraoperative ablation procedure for combined treatment of atrial fibrillation (AF) in patients affected by heart valve disease. METHODS: From February 1998 to June 2000, 80 patients scheduled for heart valve operations underwent combined surgical treatment of AF. Seventy-eight patients had mitral valve disease and 2 had aortic regurgitation; 74 patients were affected by chronic AF (mean 50 +/- 74 months, range 6-480 months) and 6 had paroxysmal AF. A left atrial set of radiofrequency ablations (mainly epicardial) was performed in all patients. RESULTS: Thirty-five patients underwent conservative mitral valve surgery, 43 had mitral valve replacement and 2 had aortic valve replacement. The combination of the ablation procedure did not lead to a substantial prolongation of cardiopulmonary and aortic cross clamp time and did not increase perioperative morbidity. No procedure-related complications were recorded. Operative mortality was favorably comparable with that of valvular surgery alone (2.5%). Mean hospital stay was 6.8 +/- 4.4 days. At follow-up (16.2 +/- 9.2 months, range 3-28 months), 61 patients (78.2%) were in stable sinus rhythm; all of them recovered left and right atrial contractility as assessed by Doppler echocardiography. CONCLUSIONS: The combined treatment of AF with a radiofrequency ablation surgical technique is effective in restoring stable sinus rhythm and atrial contractility. The procedure is low risk thereby allowing a prompt clinical recovery after operation. It should therefore be considered in all patients with AF undergoing open-heart surgery.
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