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Japanese

Experimental studies upon the ventriculoauricular conduction, with special reference to the reciprocal beats. Ichiro Dohi 1 , Yutaka Dohi 1 , Tsutomu Tada 1 , Yahiro Mita 1 , Yasushi Matsuura 1 , Riichi Maruyama 1 1Institute of Physiotheraphy and Internal Medicine. Tokyo University School of Medicine. pp.565-573
Published Date 1958/7/15
DOI https://doi.org/10.11477/mf.1404200652
  • Abstract
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In clinical cases we sometimes meet the interpolated ventricular extrasystoles (VES. s) and rarely meet the VES. s with reciprocal beats. Theoretically we can consider these two forms of VES. s to appear when the retrograde conduction is disturbed in the a-v node. The author could establish these conditions in dog experiments by injecting procain-amide intravenously.

If the retrograde conductivity is injured with procainamide injection, the retrograde conduction time of ectopic impulse is gradually prolonged until sometimes the re-entry of the impulse to the ventricle appears. When the conduction disturbance is more severe, every induced VES, takes the form of interpolated one. In the record which contains both the interpolated VES, s and VES. s accompanied by reciprocal beats, the coupling time of VES. is longer in the latter cases.

In relation to the VES. s with reciprocal beats it was confirmed that the retrograde conduction time of VES. has the inverse correlation as well with the coupling of VES. as with the antegrade conduction time of reciprocating impulse.


Copyright © 1958, 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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