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  • Title: [Prinzmental's angina and disturbances of the stimulus conduction (author's transl)].
    Author: Calabrese P, Di Biase M, Brindicci G, Rizzon P.
    Journal: G Ital Cardiol; 1976; 6(2):200-7. PubMed ID: 1010172.
    Abstract:
    Our series (30 cases) of variant angina as well as the reports from literature, were reviewed, to investigate the consequences of an acute regional ischemia on seno-atrial, atrio-ventricular and intraventricular conduction. Sinoatrial conduction was never affected independently from the anterior or posterior localization of the ischemia. A junctional impairment of atrio-ventricular conduction was rather frequent in cases of variant angina affecting the inferior wall, ranging in different series from 8% to 25%. Only one case of bundle branch block was observed. Hemiblocks were found to be extremely rare, while a deviation of the main axis of the QRS on the frontal plane, especially to the left in cases with anterior localization of the ischemia, was observed quite frequently. This axis deviation, in the absence of changes of the initial vector of the QRS compatible with the diagnosis of hemiblocks, were considered to be depending on a parietal block.
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