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Treatment of Atrial Fibrillation with Microwave  

조광현 (인제대학교 의과대학 부산백병원 흉부외과학교실)
최강주 (인제대학교 의과대학 부산백병원 흉부외과학교실)
강도균 (인제대학교 의과대학 부산백병원 흉부외과학교실)
전희재 (인제대학교 의과대학 부산백병원 흉부외과학교실)
윤영철 (인제대학교 의과대학 부산백병원 흉부외과학교실)
이양행 (인제대학교 의과대학 부산백병원 흉부외과학교실)
황윤호 (인제대학교 의과대학 부산백병원 흉부외과학교실)
Publication Information
Journal of Chest Surgery / v.36, no.5, 2003 , pp. 329-334 More about this Journal
Abstract
Backgound: Cryoablation and radiofrequency ablation have been used to treat the atrial fibrillation. Some reports insisted that the microwave ablation Is a better method for a deep and extensive lesion. Material and Method: From December 2001 to July 2002, we peformed 8 microwave ablations in patients who needed mitral valve surgery (7 MVR, 1 MVR+AVR). There were 3 men and 5 women, and their mean age was 43.4$\pm$8.3 years and mean follow up period was 5.6$\pm$2.4 months respectively. The microwave was applied on endocardium or epicardium by Lynx (Afx, inc.) using a power of 45 watts for 25 seconds. We studied the left atrial dimension, the left atrial function and the sinus conversion with echocardiography and electro-cardiography at three times; 1) before the operation, 2) immediately after the operation, and 3) 6 months after the operation. Result: There was no complication and no mortality. The mean aortic clamping time was 104.6$\pm$25.0 minutes, and the mean total bypass time was 130.5$\pm$28.7 minutes. The rate of sinus conversion was 75%, A wave across the mitral valve was a mean of 77.0$\pm$24.8 cm/sec, and the AVE was a mean of 0.46$\pm$0.17 at 5.6 months postoperatively Conclusion: There was no difference in the early result of microwave ablation compared to other methods. The microwave ablation was an acceptable method due to its convenient application especially in beating heart.
Keywords
Microwave; Atrial fibrillation;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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