Document Detail


Maximal precordial ST-segment depression in leads V4-V6 in patients with inferior wall acute myocardial infarction indicates coronary artery disease involving the left anterior descending coronary artery system.
MedLine Citation:
PMID:  9076554     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
BACKGROUND: In inferior wall acute myocardial infarction, maximal ST-segment depression in left precordial leads (V4-V6) has been shown to be associated with increased in-hospital mortality, presumably due to coronary artery disease involving the left anterior descending coronary artery system. METHODS: We measured ST-segment deviation from baseline in the initial electrocardiogram of patients with inferior wall acute myocardial infarction, who subsequently underwent coronary angiography during their in-hospital stay. Patients were divided into three groups: (I) No precordial ST-segment depression (n = 34). (II) Maximal precordial ST-segment depression in leads V1-V3 (n = 44). (III) Maximal precordial ST-segment depression in leads V4-V6 (n = 14). RESULTS: The left anterior descending coronary artery or its diagonal branch were stenosed (> 50%) in 32%, 41%, and 71% of patients in groups I, II, and III, respectively (p = 0.04), and severely stenosed (> 70%) in 18%, 18% and 57% of patients in the respective groups (p = 0.007). CONCLUSION: In patients with inferior wall acute myocardial infarction, maximal precordial ST-segment depression in leads V4-V6 is suggestive of severe coronary artery disease involving the left anterior descending coronary artery or its diagonal branch.
Authors:
D Hasdai; Y Birnbaum; A Porter; S Sclarovsky
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  International journal of cardiology     Volume:  58     ISSN:  0167-5273     ISO Abbreviation:  Int. J. Cardiol.     Publication Date:  1997 Feb 
Date Detail:
Created Date:  1997-06-25     Completed Date:  1997-06-25     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8200291     Medline TA:  Int J Cardiol     Country:  IRELAND    
Other Details:
Languages:  eng     Pagination:  273-8     Citation Subset:  IM    
Affiliation:
Sackler Faculty of Medicine, Tel Aviv University, Israel.
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MeSH Terms
Descriptor/Qualifier:
Adult
Arrhythmias, Cardiac / diagnosis*,  physiopathology
Coronary Angiography
Coronary Circulation / physiology
Coronary Disease / diagnosis*,  physiopathology
Diagnosis, Differential
Electrocardiography*
Female
Heart Conduction System / physiopathology
Humans
Male
Middle Aged
Myocardial Infarction / diagnosis*,  physiopathology

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