Right bundle-branch block associated with left superior or inferior intraventricular block associated with acute myocardial infarction

Over an 11-year period, 28 instances of acute myocardial infarction and bilateral bundle-branch block were encountered. Twenty-two of these patients had right bundle-branch block and left axis deviation, and six had right bundle-branch block and block of the inferior radiation of the left bundle. Th...

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Bibliographic Details
Published in:Circulation (New York, N.Y.) N.Y.), 1970-12, Vol.42 (6), p.1135-1142
Main Authors: Scanlon, P J, Pryor, R, Blount, Jr, S G
Format: Article
Language:English
Subjects:
Aged
Bundle-Branch Block - complications
Bundle-Branch Block - diagnosis
Bundle-Branch Block - mortality
Bundle-Branch Block - therapy
Electrocardiography
Female
Heart Block - complications
Heart Block - mortality
Heart Block - therapy
Heart Conduction System - physiopathology
Humans
Male
Middle Aged
Myocardial Infarction - complications
Myocardial Infarction - diagnosis
Myocardial Infarction - mortality
Pacemaker, Artificial
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Summary:Over an 11-year period, 28 instances of acute myocardial infarction and bilateral bundle-branch block were encountered. Twenty-two of these patients had right bundle-branch block and left axis deviation, and six had right bundle-branch block and block of the inferior radiation of the left bundle. The overall incidence of complete heart block in these 28 cases was 21%. In-hospital mortality for the whole group was 36%, whereas it was 33% for those patients who developed complete heart block. From these results it is concluded that for the patient with bilateral bundle-branch block and acute myocardial infarction the prophylactic insertion of a temporary transvenous pacemaker is not only warranted, but is probably indicated.
ISSN:0009-7322
1524-4539
DOI:10.1161/01.CIR.42.6.1135