The spatial vectorcardiogram in left bundle branch block |
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| Authors: | J Neuman J Blackaller J R Tobin P B Szanto R M Gunnar |
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| Affiliation: | 1. From the Departments of Adult Cardiology and Pathology and the Hektoen Institute for Medical Research of Cook County Hospital, Chicago, Ill. USA;2. From the Departments of Medicine of the University of Illinois College of Medicine, Chicago, Ill. USA;3. From the Stritch School of Medicine of Loyola University, Chicago, Ill. USA;4. From the Department of Pathology of the Chicago Medical School, Chicago, Ill. USA |
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| Abstract: | ![]()
Vectorcardiographic criteria have been set up for the diagnosis of typical left bundle branch block on the basis of what is known about the sequence of ventricular depolarization in this condition. Forty-eight patients were classified into typical and atypical groups on this basis, and this separation has been correlated with the incidence of infarction as determined clinically (29 patients) and by autopsy study (19 patients). The high incidence of infarction in the atypical group and almost complete absence of infarction in the typical group suggest that these are useful criteria for the recognition of myocardial infarction in the presence of left bundle branch block. |
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