Radiofrequency Ablation for WPW Syndrome with Monitoring the Local Electrogram at the Ablation Site
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概要
- 論文の詳細を見る
Catheter ablation for septal accessory pathways is occasionally associated with complications, such as atrioventricular block, since the septal region is a complex anatomical structure containing the atrioventricular conduction system. Therefore, we designed a signal separator composed of an inductancecapacitance network with which the local electrogram at the ablation site could be continuously monitored during the delivery of radiofrequency (RF) energy. We tested the safety and efficacy of RF catheter ablation using a signal separator in 17 patients with septal accessory pathways (10 anteroseptal and 7 midseptal cases). RF energy (520KHz) was applied at an output of 20-40W for 30-120sec. to the atrioventricular annulus where the shortest atrioventricular interval or accessory pathway potential was recorded on the electrogram using a large tip ablation electrode. In ablation for the anteroseptal or midseptal accessory pathways, the atrial to ventricular amplitude ratio on the local electrogram was maintained at 1 or less during the delivery of RF energy. In all 17 cases, the interruption of accessory pathways was successful without atrioventricular block. In one patient, accessory pathway conduction recurred which could be treated by the second session. There were no late complications during the 4 to 46 month follow-up period.In conclusion, RF catheter ablation using a signal separator is a safe and reliable method for treating patients with septal accessory pathways.
- International Heart Journal刊行会の論文
著者
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Okishige Kaoru
Department of Cardiology, Yokohama City Minato Red Cross Hospital
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Okishige Kaoru
Yokohama City Minato Red Cross Hospital
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Okishige Kaoru
Cardiac Electrophysiology Laboratory Cardiovascular Department Yokohama Red Cross Hospital
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Okishige Kaoru
Department Of Cardiology Heart Center Yokohama Bay Red Cross Hospital
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Azegami Koji
Cardiac Electrophysiology Laboratory Cardiovascular Department Yokohama Red Cross Hospital
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Ohira Hiroshi
Department of Cardiology, Yokohama Red Cross Hospital
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Yamashita Katsuhiro
Department of Cardiology, Yokohama Red Cross Hospital
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Satake Shutarou
Department of Cardiology, Yokohama Red Cross General Hospital
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Satake Shutaro
Cardiac Electrophysiology Laboratory Cardiovascular Department Yokohama Red Cross Hospital
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Yamashita Katsuhiro
Department Of Cardiology Yokohama Red Cross Hospital
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Azegami Koji
Cardiovascular Center Yokohama Red Cross Hospital
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Ohira Hiroshi
Department Of Cardiology Edogawa Hospital
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Sato Takako
Department Of Radiology Nihon University School Of Medicine
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Sato Takako
Department Of Oral Biology State University Of New York
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Okishige Kaoru
Heart Center
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Okishige Kaoru
The Cardiac Electrophysiology Laboratory Yokohama Red Cross General Hospital
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AZEGAMI Koji
First Department of Internal Medicine, Tokyo Medical and Dental University
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Azegami Kouji
The Cardiac Electrophysiology Laboratory Yokohama Red Cross General Hospital
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Satake Syutaro
The Cardiac Electrophysiology Laboratory Yokohama Red Cross General Hospital
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Sato Takako
Department Of Legal Medicine Osaka Medical College
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OKISHIGE Kaoru
Department of Cardiology, Yokohama Red Cross Hospital
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SATAKE Shutarou
Department of Cardiology, Yokohama Red Cross Hospital
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SATO Takako
Department of Cardiology, Yokohama Red Cross Hospital
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