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Minerva Cardioangiologica 2003 February;51(1):55-62

Copyright © 2003 EDIZIONI MINERVA MEDICA

language: Italian

Exercise-induced ST segment elevation in patients with anterior myocardial infarction: comparison with dobutamine stress

Assennato P., Messina L., Di Vincenzo A., Alfano R., Giarratana G., Hoffmann E.


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Background. Clinical significance of stress induced ST segment elevation after acute anterior myocardial infarction remains controversial. In this study, the relation between ST segment elevation and wall motion response occurring during dobutamine testing is compared.
Methods. A group of 40 patients with previous anterior myocardial infarction has been studied; 30 patients (group A) showed ST segment elevation in infarcted related leads during exercise test; 10 patients (group B) showed a T inversion without ST segment elevation. All the patients underwent dobutamine stress testing.
Results. At low dose, 16 patients only (53.3%)of the group A and 1 patients of the group B showed segmental functional recovery; 14 patients (46.7%) showed no signs of viability.
Conclusions. These observations suggest that transient ST segment elevation during exercise test is not a specific sign and may predict viability or diskinesia or residual myocardial ischemia.

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