Monitoring the Local Electrogram at the Ablation Site during Radiofrequency Application for Common Atrial Flutter
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概要
- 論文の詳細を見る
Recent studies have suggested that the attenuation of the local electrogram amplitude recorded from the ablation electrode during radiofrequency(RF)application predicts lesion growth. This study examined the time course of local electrogram amplitude during ongoing RF delivery in patients with common atrial fluter(AFl). In 71 patients with AFl, RF energy was applied to the anatomical isthmus. Thermination of AFl was noted during 68 of 625 applications of RF energy. The changes in local atrial electrogram amplitude observed at all successful sites were analyzed. With increasing duration of the RF delivery, the electrogram amplitude decreased exponentially to reach a steady state within a mean duration of 17±3 sec, which was significantly longer than that of the steady-state temperature. The average decrease in the amplitude was 67±13%. In 16 patients in whom an increase in the power of RF energy had resulted in AFl termination, there was a dose-response relationship between the power and the amplitude decrease. The decrease in local electrogram amplitude appears to be a reliable marker for the efficacy of tissue heating and may be useful as an endpoint for individual applications. Local electrogram monitoring may offer an optimal energy strategy in AFl ablation.
- 社団法人日本循環器学会の論文
- 1998-07-20
著者
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Okishige Kaoru
Department of Cardiology, Yokohama City Minato Red Cross Hospital
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Azegami Koji
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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Azegami Kouji
Department Of Cardiovascular Disease Yokohama Red Cross Hospital
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SASANO Tetsuo
Department of Cardiovascular Disease, Yokohama Red Cross Hospital
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Satake Shutaro
Cardiac Electrophysiology Laboratory, Cardiovascular Department, Yokohama Red Cross Hospital
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Satake Shutaro
Department of Cardiology, 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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Azegami Kouji
Cardiovascular Center Yokohama Red Cross Hospital
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Satake Shutaro
Cardiac Electrophysiology Laboratory Cardiovascular Department Yokohama Red Cross Hospital
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Sasano Tetsuo
Department Of Cardiovascular Disease Medical Research Institute Tokyo Medical And Dental University
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Sasano Tetsuo
Cardiac Electrophysiology Laboratory Cardiovascular Department Yokohama Red Cross Hospital
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Sasano Tetsuo
Department Of Bio-informational Pharmacology Medical Research Institute Tokyo Medical And Dental Uni
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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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Azegami Koji
Department Of Cardiology Yokohama City Minato Red Cross Hospital
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Azegami Koji
Cardiovascular Center Yokohama Red Cross Hospital
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Sasano Tetsuo
Cardiovascular Department Yokohama Red Cross Hospital
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Ohira Hiroshi
Department Of Cardiology Edogawa Hospital
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Sasano Tetsuo
Department Of Cardiovascular Disease Yokohama Red Cross Hospital
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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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Ohnishi Kentaro
Department Of Cardiovascular Medicine Musashino Red Cross Hospital
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Ohnishi Kentaro
Yokohama City Minato Red Cross Hospital
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Azegami Kouji
The Cardiac Electrophysiology Laboratory Yokohama Red Cross General Hospital
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Yamashita Katsuhiro
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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