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  • Title: Myocardial infarction and complete heart block.
    Author: Lopez JF, Mori M, Baltzan BL.
    Journal: Can Med Assoc J; 1970 Apr 11; 102(7):705-8. PubMed ID: 5439326.
    Abstract:
    The clinical and electrocardiographic records of 20 patients with complete A-V block due to acute myocardial infarction have been analyzed. This study indicated that patients with an inferior wall myocardial infarction had, most commonly, a block above the bifurcation. The block was transitory, the patients had no Stokes-Adams attacks and the outcome was good. None of our patients required artificial pacing. On the other hand, patients with an anteroseptal myocardial infarction suffered from a bilateral bundle branch block (below the bifurcation). They had severe Stokes-Adams attacks and they all required artificial pacing. The destruction of the conducting system was extensive and the outcome was poor. Five out of seven patients treated with artificial pacing recovered the A-V conduction through the left bundle within a few days. However, in spite of this they all died.From this small series clearly defined clinical and electrocardiographic features can be identified in two different groups of cases.
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