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Exercise-induced Left Bundle Branch Block in Treadmill Exercise Test : Clinical significance and prognosis Toshikazu Aoki 1 , Hideo Nishikawa 1 , Munenobu Motoyasu 1 , Yuzo Shimizu 1 , Naomi Ono 1 , Masazumi Unno 1 , Yutaka Kakuta 1 , Tokuji Konishi 2 , Takeshi Nakano 2 1Division of Cardiology, Yamada Red Cross Hospital 2First Department of Internal Medicine, Mie University School of Medicine Keyword: 運動負荷誘発性左脚ブロック , 拡張型心筋症 , 運動負荷201Tl心筋SPECT , exercise-induced left bundle branch block , dilated cardiomyopathy , thallium-201 myocardial SPECT pp.797-804
Published Date 1992/8/15
DOI https://doi.org/10.11477/mf.1404900524
  • Abstract
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Exercise induced left bundle branch block (LBBB) is poorly understood. We investigated its clinical char-acta-ristics and prognosis. The records of 3,459 consecu-tive patients who underwent treadmill exercise testing were reviewed. Exercise induced LBBB was identified in 6 patients (0.17%). Three out of six patients had underlying cardiac disease; two had coronary artery disease and one dilated cardiomyopathy. Three out of five had redistribution on Tl-201 myocardial scintigra-phy. In one of these three patients, however, coronary angiography demonstrated no significant narrowings.


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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