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Effect of novel modified bipolar radiofrequency ablation for preoperative atrial fibrillation combined with off-pump coronary artery bypass grafting surgery

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Abstract

We described a novel modified bipolar radiofrequency (RF) ablation for preoperative atrial fibrillation (AF) combined with off-pump coronary artery bypass grafting (OPCABG) for patients with AF and coronary artery disease (CAD). The aim of this study was to assess the effect of this novel procedure and to determine whether it can eliminate AF for CAD patients. From January 2007 to June 2013, 45 patients (26 male patients) with AF (9 paroxysmal, 17 persistent, and 19 long-standing persistent) and CAD underwent the novel modified bipolar RF ablation combined with OPCABG in our department. After median sternotomy, the modified bipolar RF ablation and OPCABG were performed on beating heart without cardiopulmonary bypass. Pulmonary vein isolation and left atrium ablation were achieved using a bipolar RF champ. Mitral annular lesion and ganglionic plexus were ablated with a bipolar RF pen. The left atrial appendage was excluded using a surgical stapler. 24 h holter monitoring and echocardiography were performed at discharge and 3, 6, 12 months postoperatively as well as every year thereafter. The modified bipolar RF ablation and OPCABG were performed successfully in all patients. Mean AF ablation time was 33.6 ± 4.2 min, and mean OPCABG time was 87.6 ± 13.3 min. Mean postoperative hospital stay was 12.6 ± 5.5 days. The maintenance of sinus rhythm was 95.6 % (43/45) at discharge. There was no early death and permanent pacemaker implantation in perioperation. At a mean follow-up of 29.8 ± 10.2 months, 38 of 45 (84.4 %) patients were in sinus rhythm. Follow-up TTE at 6 months postoperatively showed that left atrial diameter was significantly reduced and left ventricular ejection fraction was significantly increased. The novel modified bipolar RF ablation procedure was safe, feasible and effective. It may be useful in selecting the best ablation approaches for patients with AF and CAD.

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Acknowledgments

We are grateful for the financial support from Shanghai Science and Technology Grant (No. 11441900200) (No. 13XD1403200). We thank Dr. Bao Chunrong, Dr. Huang Jianbing, Dr. Zhang Junwen, Ms Shen Sai-e, Ms Chen Huihua for their help in the preparation of the manuscript.

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There are no conflicts of interest to report.

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Authors and Affiliations

  1. Department of Cardiothoracic Surgery, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, 1665 Kongjiang Road, Shanghai, 200092, China

    Zhaolei Jiang, Nan Ma, Min Tang, Hao Liu, Fangbao Ding, Hang Yin & Ju Mei

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  1. Zhaolei Jiang
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  2. Nan Ma
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  3. Min Tang
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  4. Hao Liu
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  5. Fangbao Ding
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  6. Hang Yin
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  7. Ju Mei
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Correspondence to Ju Mei.

Additional information

Z. Jiang and N. Ma contributed equally to this work.

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Jiang, Z., Ma, N., Tang, M. et al. Effect of novel modified bipolar radiofrequency ablation for preoperative atrial fibrillation combined with off-pump coronary artery bypass grafting surgery. Heart Vessels 30, 818–823 (2015). https://doi.org/10.1007/s00380-014-0519-2

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  • DOI: https://doi.org/10.1007/s00380-014-0519-2

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