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Effects of intravenous disopyramide on induction and termination of paroxysmal supraventricular tachycardia using an accessory pathway Chikayoshi Komatsu 1 , Takanari Ishinaga 1 , Osamu Tateishi 1 , Yasutaka Tokuhisa 1 , Masatada Hara 1 , Takeo Sanada 1 , Kiyoshi Kanae 1 , Yasuo Satoh 1 , Shozo Yoshimura 1 1The 4th Department of Internal Medicine, Jikei University School of Medicine pp.409-414
Published Date 1984/4/15
DOI https://doi.org/10.11477/mf.1404204432
  • Abstract
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The effects of intravenous disopyramide 50mg on the induction and termination of paroxysmal supra-ventricar tachycardia were studied in 21 patients with reentrant tachycardia using an accessory path-way (AP-RT). In five out of 19 patients, sustained PSVT was terminated after disopyramides adminis-tration, and in all these five patients, tachycardia was terminated by V-A block. In six out of 21 pa-tients, including the five patients whose PSVT was terminated by disopyramide, sustained tachycardia was not induced after disopyramide administra-tion. In all six patients, echo zone disappeared com-pletely or decreased. The mean cycle length of tachycardia increased after disopyramide, but this increase was due to the increase of V-A interval, while A-V and A-H intervals were somewhat de-creased. The site of action of disopyramide on AP-RT was thought to be the accessory pathway.


Copyright © 1984, 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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