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- Title
SEPTAL-SUPERIOR EXPOSURE IN MITRAL VALVE SURGERY WITH RADIOFREQUENCY ABLATION.
- Authors
Ishikawa, Susumu; Obayashi, Tamiyuki; Kawasaki, Akio; Suzuki, Yoshitaka; Neya, Kazuo; Ohki, Satoshi; Kugawa, Satoshi; Hayama, Tamuro; Ueda, Keisuke
- Abstract
Background: We review the results of surgical radiofrequency ablation of both atria in patients of mitral valve disease approached by septal-superior exposure and discuss the availability of this approach. Methods: Eighteen patients with a mean age of 65 years were included in this study. Thirteen patients had mitral valve regurgitation predominantly and five had mitral valve stenosis. Eleven patients underwent mitral valve plasty and valve replacement was carried out in seven. All ablation lesions were created on both atria using radiofrequency energy delivered by a unipolar malleable radiofrequency ablation catheter with seven electrodes at a minimum temperature of 80–85°C for a period of 2 min. Results: At the time of discharge, 14 patients were showed normal sinus rhythm and one patient remained in AF. The other three patients were free from atrial fibrillation; however, they received dual-mode, dual-pacing, dual-sensing pacemaker implantation because of bradycardia during the early postoperative phase. At a mean time of 7 months after surgery, all patients were free from atrial fibrillation; 13 patients showed normal sinus rhythm and five patients received dual-mode, dual-pacing, dual-sensing pacemakers. Conclusion: Septal-superior exposure provides an excellent operative view both for mitral valve surgery and for radiofrequency ablation. However, this exposure has not been considered a first-line approach because of the high rate of pacemaker implantation.
- Subjects
MITRAL valve surgery; CATHETER ablation; HEART septum abnormalities; ATRIAL fibrillation; CARDIAC pacemakers; BRADYCARDIA; PATIENTS
- Publication
ANZ Journal of Surgery, 2007, Vol 77, Issue 1/2, p40
- ISSN
1445-1433
- Publication type
Article
- DOI
10.1111/j.1445-2197.2006.03974.x