LONG-TERM RESULTS OF CATHETER ABLATION FOR IDIOPATHIC VENTRICULAR TACHYCARDIA ORIGINATED FROM THE RIGHT VENTRICULAR OUTFLOW

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概要

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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.

• 社団法人日本循環器学会の論文
• 1993-09-20

著者

• Shimizu Wataru

  The First Department Of Internal Medicine Hiroshima University School Of Medicine

• Nagata Kenji

  First Department Of Internal Medicine Hiroshima University School Of Medicine

• Kajiyama Goro

  The First Department Of Internal Medicine Hiroshima University School Of Medicine

• MATSUURA Hideo

  the First Department of Internal Medicine, Hiroshima University School of Medicine

• TSUCHIOKA YUKIKO

  The First Department of Internal Medicine, Hiroshima University School of Medicine

• Karakawa Shinji

  First Department of Internal Medicine, Hiroshima University School of Medicine

• Mukai Junko

  First Department of Internal Medicine, Hiroshima University

• NAGATA Kenji

  The First Department of Internal Medicine,Hiroshima University School of Medicine

• MUKAI Junko

  The First Department of Internal Medicine,Hiroshima University School of Medicine

• NAKAGAWA HIROSHI

  University of Okurahoma Health Center

• KARAKAWA SHINJI

  The First Department of Internal Medicine, Hiroshima University School of Medicine

• OKAMOTO MITSUNORI

  The Department of Cardiology, Hiroshima Prefectural Hospital

• Karakawa Shinji

  First Department Of Internal Medicine Hiroshima University School Of Medicine

• Matsuura Hideo

  The First Department Of Internal Medicine Hiroshima University Faculty Of Medicine

• Matsuura Hideo

  First Department Of Internal Medicine Hiroshima University

• Tsuchioka Yukiko

  First Department Of Internal Medicine Hiroshima University

• Tsuchioka Yukiko

  The First Department Of Internal Medicine Hiroshima University School Of Medicine

• Nakagawa Hiroshi

  University Of Oklahoma:st Mary's Hospital

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