Clinical implications of anterior S-T segment depression in patients with acute inferior myocardial infarction
Détails
ID Serval
serval:BIB_3B13ED64A8DB
Type
Article: article d'un périodique ou d'un magazine.
Collection
Publications
Institution
Titre
Clinical implications of anterior S-T segment depression in patients with acute inferior myocardial infarction
Périodique
American Journal of Cardiology
ISSN
0002-9149 (Print)
Statut éditorial
Publié
Date de publication
09/1982
Volume
50
Numéro
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
Journal Article
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, P.H.S. --- Old month value: Sep
Résumé
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.
Mots-clé
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
Création de la notice
25/01/2008 13:59
Dernière modification de la notice
20/08/2019 13:30