Document Detail


Anterolateral ST segment depression in acute inferior myocardial infarction: angiographic and clinical implications.
MedLine Citation:
PMID:  6720545     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
We examined the relationship between coronary anatomy and anterolateral ST segment depression during inferior acute myocardial infarction (AMI) in 84 consecutive survivors of inferior AMI, who underwent prospective coronary angiography a median time of 2 weeks after AMI. Multivessel disease was defined as two or more significantly (greater than 70%) stenosed vessels. A QRS scoring system was used to estimate myocardial infarct size. Patients with ST depression had more multivessel disease compared to patients with no ST depression (53% vs 6%, p less than 0.01), more left anterior descending stenoses (36% vs 10% p less than 0.05), and higher QRS scores (5.8 +/- 3.2 vs 2.6 +/- 1.8, p less than 0.01) indicating larger infarcts. Patients with ST depression and one-vessel disease (47%) still had higher QRS scores compared to patients with no ST depression (4.8 +/- 2.9 vs 2.6 +/- 1.8, p less than 0.001) and had an increased prevalence of infarct-related vessels with a terminal branch supplying the left ventricular lateral wall or apex. We conclude that anterolateral ST depression during inferior AMI may indicate the presence of additionally stenosed vessels or that the infarct-related vessel has a large vascular territory. The absence of ST depression virtually precludes multivessel disease.
Authors:
G S Roubin; W F Shen; M Nicholson; R F Dunn; D T Kelly; P J Harris
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  American heart journal     Volume:  107     ISSN:  0002-8703     ISO Abbreviation:  Am. Heart J.     Publication Date:  1984 Jun 
Date Detail:
Created Date:  1984-06-21     Completed Date:  1984-06-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0370465     Medline TA:  Am Heart J     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  1177-82     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Adult
Coronary Angiography
Electrocardiography*
Exercise Test
Heart / physiopathology,  radiography,  radionuclide imaging
Humans
Middle Aged
Myocardial Infarction / pathology,  physiopathology*,  radiography
Myocardium / pathology
Radioisotopes / diagnostic use
Thallium / diagnostic use
Chemical
Reg. No./Substance:
0/Radioisotopes; 7440-28-0/Thallium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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