Long-term results of catheter ablation for idiopathic ventricular tachycardia originated from the right ventricular outflow
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- MUKAI J.
- The First Department of Internal Medicine, Hiroshima University School of Medicine
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- NAKAGAWA HIROSHI
- University of Okurahoma Health Center
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- NAGATA KENJI
- The First Department of Internal Medicine, Hiroshima University School of Medicine
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- KARAKAWA SHINJI
- The First Department of Internal Medicine, Hiroshima University School of Medicine
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- SHIMIZU WATARU
- The First Department of Internal Medicine, Hiroshima University School of Medicine
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- TSUCHIOKA YUKIKO
- The First Department of Internal Medicine, Hiroshima University School of Medicine
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- OKAMOTO MITSUNORI
- The Department of Cardiology, Hiroshima Prefectural Hospital
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- MATSUURA HIDEO
- The First Department of Internal Medicine, Hiroshima University School of Medicine
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- KAJIYAMA GORO
- The First Department of Internal Medicine, Hiroshima University School of Medicine
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We performed catheter ablation in 10 consecutive patients with idiopathic monomorphic right ventricular tachycardia and studied the long-term outcome. A11 ventricular tachycardias had a left bundle branch block configuration with an inferior axis, and originated from right ventricular outflow. Antiarrhythmic drugs (3-6 drugs) had been ineffective in controlling ventricular tachycardia. The 2 patients who underwent direct-current ablation (2 shocks of 150 J) had no recurrence of ventricular tachycardia and did not require antiarrhythmic drugs during a follow-up of 56 and 51 months, respectively. Of the 8 patients who underwent radiofrequency ablation (30-40 watt, 20-40 sec, 2-15 application, using Inter Nova RA 50, 13.56 MHz), I patient had no recurrence of ventricular tachycardias and did not require antiarrhythmic drugs, 4 patients had no recurrence of ventricular tachycardias but did require anti-arrhythmic drugs, and 3 patients experienced recurrence of non-sustained ventricular tachycardia despite the use of antiarrhythmic drugs during a follow-up of 15 -40 months. There were no complications except for cardiac perforation which occurred immediately after direct-current ablation in I patient. In conclusion, long-term success in preventing ventricular tachycardia was achievable with direct-current ablation, but this success was associated with serious risks, such as cardiac perforation. Radiofrequency ablation was safer than direct-current ablation, but had a lower long-term success rate.
収録刊行物
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- Jpn Circ J
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Jpn Circ J 57 960-968, 1993
社団法人日本循環器学会
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詳細情報 詳細情報について
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- CRID
- 1571698602055331712
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- NII論文ID
- 110002595721
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- NII書誌ID
- AA00690731
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- ISSN
- 00471828
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- 本文言語コード
- en
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- データソース種別
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- CiNii Articles