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Electrocardiographic criteria for the diagnosis of combined inferior myocardial infarction and left anterior hemiblock.

Authors
  • Warner, R A
  • Hill, N E
  • Mookherjee, S
  • Smulyan, H
Type
Published Article
Journal
The American Journal of Cardiology
Publisher
Elsevier
Publication Date
Mar 01, 1983
Volume
51
Issue
5
Pages
718–722
Identifiers
PMID: 6829429
Source
Medline
License
Unknown

Abstract

New electrocardiographic (ECG) criteria for diagnosing the combination of inferior myocardial infarction and left anterior hemiblock are proposed. The proposed criteria are based upon the relations between portions of the vectorcardiographic QRS loop in the frontal plane and the corresponding portions of the QRS complexes recorded by the limb leads. The application of the proposed criteria requires that the tracings be obtained with 3-channel ECG machines. The proposed criteria for the diagnosis of inferior myocardial infarction and left anterior hemiblock are as follows: (1) leads aVR and aVL both end in R waves, with the peak of the terminal R wave in lead aVR occurring later than the peak of the terminal R wave in lead aVL, and (2) a Q wave of any magnitude is present in lead II. The performance of the proposed criteria was superior to that of 10 combinations of traditional ECG criteria for inferior myocardial infarction and left anterior hemiblock.

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