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Japanese

Analysis of the changes of spatial ventricular gradient produced by exercise Toshiyuki Degawa 1 1The 3rd Department of Internal Medicine, Toho University pp.179-184
Published Date 1984/2/15
DOI https://doi.org/10.11477/mf.1404204394
  • Abstract
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The present study was undertaken to analyse the changes of spatial ventricular gradient (S.G.) pro-duced by exercise in 32 normal subjects (N), 12 patients with coronary artery disease (C.A.D.), 9 patients with C-RBBB without overt cardiac disease (C-RBBB), and 8 patients with C-RBBB who had angina pectoris (C-RBBB with angina pee.). Multi-stage exercise test was performed on a supine bi-cycle ergometer. Frank's lead XYZ electrocardio-grams were obtained before and after exercise. And S.G. was measured by signal processing system.

In N group, the changes of S.G. were slight both in magnitude and direction. In C.A.D. group, the changes of S.G. were significantly larger both in magnitude and direction when compared with those in N group.

In C-RBBB group, the changes of S.G. were simi-lar to those in N group. In C-RBBB with angina pee. group, the changes of S.G. were significantly larger both in magnitude and direction than those in C-RBBB group, and were similar to those in C.A.D. group.

Therefore. it will be able to detect the primary ST-T change that was masked by the secondary ST-T change in C-RBBB, when the changes of S.G. produced by exercise are measured.


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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