Effects of Cavotricuspid Isthmus Catheter Ablation on Paroxysmal Atrial Fibrillation.

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概要

• 論文の詳細を見る

• It has been demonstrated that successful cavotricuspid isthmus ablation of typical atrial flutter combined with atrial fibrillation (AF) sometimes influences the preablation history of paroxysmal AF. However, the effectiveness of only isthmus ablation on AF itself is unclear. Endocardial catheter mapping during induced AF was performed around the tricuspid annulus using duodecapolar electrode catheters in 39 patients with drug-refractory paroxysmal AF. Isthmus ablation was performed in 16 patients (41%) in whom catheter mapping during AF showed an organized activation pattern around the tricuspid annulus. During a mean follow-up of 12.3 months, isthmus ablation was successful in preventing AF in 12 (75%) patients, 8 without medication and 4 with a previously ineffective drug. This success group had a significantly higher F wave amplitude in lead V1 (0.29 ± 0.10 vs 0.15 ± 0.04 mV, p < 0.01), a higher left ventricular ejection fraction (74 ± 9 vs 58 ± 2%, p < 0.05), and a smaller left atrial dimension (35 ± 6 vs 43 ± 4mm, p < 0.05) than the failure group. Isthmus ablation may be effective in preventing paroxysmal AF with an organized activation pattern around the tricuspid annulus. F wave amplitude, left ventricular ejection fraction, and left atrial dimension were significant predictors of success.

• International Heart Journal刊行会の論文

著者

• Kumagai Koichiro

  Department of Cardiology, Fukuoka University School of Medicine

• Noguchi Hiroo

  Department of Cardiology, Fukuoka University School of Medicine

• Tojo Hideaki

  Department Of Agricultural Chemistry The University Of Tokyo

• Noguchi Hiroo

  Department Of Cardiology Fukuoka University School Of Medicine

• GONDO Naoki

  Department of Cardiology, Fukuoka University School of Medicine

• Yasuda Tomoo

  Department Of Cardiology Fukuoka University Hospital

• Kumagai Koichiro

  Department Of 2nd Internal Medicine Fukuoka University

• Gondo Naoki

  Department Of Cardiology Fukuoka University School Of Medicine

• Matsumoto Naomichi

  Department Of Cardiology Fukuoka University Hospital School Of Medicine

• Saku Keijiro

  Department Of Cardiology Faculty Of Medicine Fukuoka University

• Nakashima Hideko

  Department Of Cardiology Faculty Of Medicine Fukuoka University

• Nakashima Hideko

  Department of Cardiology, Fukuoka University School of Medicine

• Yasuda Tomoo

  Department of Cardiology, Fukuoka University School of Medicine

• Tamari Hideki

  Department of Cardiology, Fukuoka University School of Medicine

• Matsumoto Naomichi

  Department of Cardiology, Fukuoka University School of Medicine

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