Lesion Formation by Ventricular Septal Ablation With Irrigated Electrodes : Comparison of Bipolar and Sequential Unipolar Ablation
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概要
- 論文の詳細を見る
Background: Ablation of ventricular tachycardia originating from the interventricular septum (IVS) is often limited by the presence of re-entrant pathways deep in the IVS. We compared the efficacy of bipolar ablation vs. sequential unipolar ablation in creating a transmural lesion across the porcine IVS. Methods and Results: Seventeen excised swine hearts were superfused by pulsatile saline flow. Bipolar ablation (at 30W, 50W or 70W for 120s) was performed between 2 saline-irrigated (20ml/min) 4-mm tip electrodes, 1 on the left and 1 on the right side of the IVS. Sequential unipolar ablation (at 30W, 50W or 70W for 120s) was performed on the left and right sides of the IVS with an irrigated-tip catheter. Bipolar ablation produced a narrower, deeper lesion than did unipolar ablation. A transmural lesion was created by sequential unipolar ablation in 7.7%, 8.3% and 0% of tissue preparations and by bipolar ablation in 50.0%, 46.7% and 71.4% of tissue preparations at 30W, 50W and 70W. Conclusions: Bipolar ablation of the IVS was highly effective for creating a transmural IVS lesion. (Circ J 2011; 75: 565-570)
- 社団法人 日本循環器学会の論文
- 2011-02-25
著者
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HIRAYAMA Atsushi
Osaka Police Hospital
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WATANABE Ichiro
Division of Cardiology, Department of Medicine, Nihon University School of Medicine
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OKUMURA Yasuo
Division of Cardiology, Department of Medicine, Nihon University School of Medicine
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OHKUBO Kimie
Division of Cardiology, Department of Medicine, Nihon University School of Medicine
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HIRAYAMA Atsushi
Division of Cardiology, Department of Medicine, Nihon University School of Medicine
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笠巻 祐二
日本大学医学部内科学系循環器内科学分野
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Hirayama Atsushi
Division Of Cardiovascular Medicine Department Of Medicine Nihon University School Of Medicine
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Kasamaki Yuji
日本大学 医学部総合内科学
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笠巻 祐二
日本大学 医学部 内科学講座 内科二部門
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Hirayama A
Division Of Cardiovascular Medicine Department Of Medicine Nihon University School Of Medicine
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Nagashima Koichi
Division of Cardiology, Department of Medicine, Nihon University School of Medicine
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笠巻 祐二
Div. Of Cardiovascular Med. Nihon Univ. Sch. Of Med
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Katoh Masahiko
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Kofune Masayoshi
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Hirata Akio
大阪警察病院 心臓セ
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Watanabe Ichiro
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Kasamaki Yuji
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Hirayama Atsushi
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Hirayama Atsushi
日本大学 医学部内科学系循環器内科
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Hanatani Akihisa
国立循環器病研究センター 心臓血管内科部門
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Akamatsu Hiroki
Department Of Cardiology Nihon University Surugadai Hospital
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KASAMAKI Yuji
Div. of Cardiovascular Med. Nihon Univ. Sch. of Med
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Ohya Toshiyuki
Division of Cardiology, Department of Medicine, Nihon University School of Medicine
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Nagashima Koichi
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Abeta Hiromi
Department Of Cardiology Surugadai Nihon University Hospital
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Okumura Yasuo
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Okumura Yasuo
Division Of Cardiology Department Of Cardiovascular Disease Nihon University School Of Medicine
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Hirayama Atsushi
Department Of Cardiology Nihon University School Of Medicine
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Ohkubo Kimie
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Kasamaki Yuji
Department Of Cardiology Nihon University School Of Medicine
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Okubo Kimie
Department Of Cardiology Nihon University School Of Medicine
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Komoriya Masakazu
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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笠巻 祐二
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Ohya Toshiyuki
Division Of Cardiology Department Of Medicine Nihon University School Of Medicine
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Hirayama Atsushi
Division Of Cardiology Department Of Internal Medicine Nihon University School Of Medicine
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Aoyama Hiroshi
Department Of Cardiology Surugadai Nihon University Hospital
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