Brief report
Significance of exercise-induced left hemiblock

https://doi.org/10.1016/0002-9149(90)91179-AGet rights and content

Abstract

Few published reports1,2,4,6,7 have described exerciseinduced left hemiblock. It is suggested that this conduction disturbance during exercise is a consequence of decreased blood supply to the conduction bundles and is closely linked to the presence of coronary artery disease. The aim of this retrospective study was to assess the significance of exercise-induced left hemiblock and its relation to a transient myocardial ischemia.

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Cited by (6)

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    Citation Excerpt :

    The simultaneous appearance of precordial pain and exercise-induced left bundle branch block may be linked to an asynchronous contraction between the two ventricles [39,41]. Exercise-induced left anterior hemiblock indicates stenosis of either the left main coronary artery or of the proximal interventricular artery, whereas a left posterior hemiblock is a marker for right coronary artery or circumflex artery stenosis, often with extended lesions [35]. For diagnostic purposes, the interpretation of an ET must be multivariable [42,43], and indicate a high, intermediate or weak probability for myocardial ischemia.

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