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An Experimental Study to Determine the Appropriate Frequency of Radiofrequency Catheter Ablation in vitro and in vivo for Ventricular Tachycardias Takanori Ikeda 1 , Kenji Ninomiya 1 , Kaoru Sugi 1 , Yoshihisa Enjoji 1 , Ryoji Abe 1 , Tetsu Yamaguchi 1 , So Yabuki 1 , Kiyoshi Machii 1 , Kei Takahashi 2 , Shiro Naoe 2 1Third Department of Internal Medicine, Toho University School of Medicine Ohashi Hospital 2Department of Pathology, Toho University School of Medicine Ohashi Hospital Keyword: 高周波カテーテル・アブレーション , 周波数 , 心室頻拍 , radiofrequency catheter ablation , frequency , ventricular tachycardia pp.975-980
Published Date 1992/10/15
DOI https://doi.org/10.11477/mf.1404900553
  • Abstract
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The purpose of this study was to examine the appro-priate frequency of radiofrequency catheter ablation (RFA) for ventricular tachycardia.

Radiofrequency energy generated by a device in which the frequency could be changed, was delivered from an electrode catheter with an electrode tip-width of 4 mm. RFA was performed for 10 seconds with 20W (50V×0.4A) using 7 different frequencies from 10 to 500 kHz on ventricular myocardium in vitro and in anesth-etized dogs. The ablated lesion was significantly larger with RFA of 200-300 kHz in both surface area and depth (p<0.05).


Copyright © 1992, Igaku-Shoin Ltd. All rights reserved.

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電子版ISSN 1882-1200 印刷版ISSN 0452-3458 医学書院

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