Clinical implications of anterior S-T segment depression in patients with acute inferior myocardial infarction

Details

Serval ID
serval:BIB_3B13ED64A8DB
Type
Article: article from journal or magazin.
Collection
Publications
Institution
Title
Clinical implications of anterior S-T segment depression in patients with acute inferior myocardial infarction
Journal
American Journal of Cardiology
Author(s)
Croft  C. H., Woodward  W., Nicod  P., Corbett  J. R., Lewis  S. E., Willerson  J. T., Rude  R. E.
ISSN
0002-9149 (Print)
Publication state
Published
Issued date
09/1982
Volume
50
Number
3
Pages
428-36
Notes
Comparative Study
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S. --- Old month value: Sep
Abstract
To assess various factors associated with anterior S-T segment depression during acute inferior myocardial infarction, 47 consecutive patients with electrocardiographic evidence of a first transmural inferior infarction were studied prospectively with radionuclide ventriculography an average of 7.3 hours (range 2.9 to 15.3) after the onset of symptoms. Thirty-nine patients (Group I) had anterior S-T depression in the initial electrocardiogram and 8 (Group II) did not have such "reciprocal" changes. There was no difference between the two groups in left ventricular end-diastolic or end-diastolic volume index or left ventricular ejection fraction. Stroke volume index was greater in Group I than in Group II. There were no group differences in left ventricular total or regional wall motion scores. A weak correlation existed between the quantities (mV) or inferior S-T segment elevation and reciprocal S-T depression. No relation between anterior S-T segment depression and the left ventricular end-diastolic volume index could be demonstrated; the extent of left ventricular apical and right ventricular wall motion abnormalities, both frequently associated with inferior infarction, did not correlate with the quantity of anterior S-T depression. These data show that anterior S-T segment depression occurs commonly during the early evolution of transmural inferior infarction, is not generally a marker of functionally significant anterior ischemia and cannot be used to predict left ventricular function in individual patients. Anterior S-T segment depression may be determined by reciprocal mechanisms.
Keywords
Creatine Kinase/blood *Electrocardiography Enzyme Tests Heart Catheterization Heart Ventricles/physiopathology/radionuclide imaging Humans Isoenzymes Male Middle Aged Myocardial Infarction/*diagnosis/physiopathology/radionuclide imaging Prospective Studies Sodium Pertechnetate Tc 99m Stroke Volume Technetium/diagnostic use
Pubmed
Web of science
Create date
25/01/2008 13:59
Last modification date
20/08/2019 13:30
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