| Unusual ECG responses to exercise stress testing. | |
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MedLine Citation:
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PMID: 11455518 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We describe the case of a patient with coronary artery disease who developed transient ST-segment depression, right bundle branch block (RBBB), left anterior hemiblock, ST-segment elevation +ST), and "giant" T-waves in her electrocardiogram (ECG), an assortment of ECG patterns heretofore unreported in conjunction with exercise stress testing (EST). The amplitude of the +ST was modulated by the superimposed RBBB, as was shown by its augmentation after the abrupt disappearance of RBBB. Following recession of the latter "giant" T-waves, which usually are encountered in the hyperacute phase of myocardial infarction, developed and persisted late in the recovery period. Cardiac enzymes after EST were negative, and arteriography revealed a stenotic left anterior descending coronary artery. The present case indicates that a variety of ECG expressions of severe transmural ischemia or myocardial infarction can also be manifest in the course of EST; this also suggests a common pathophysiological mechanism in severe EST-triggered ischemia and the early phase of myocardial infarction. |
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Authors:
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J E Madias; H Agarwal |
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Publication Detail:
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Type: Case Reports; Journal Article |
Journal Detail:
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Title: Journal of electrocardiology Volume: 34 ISSN: 0022-0736 ISO Abbreviation: J Electrocardiol Publication Date: 2001 Jul |
Date Detail:
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Created Date: 2001-07-16 Completed Date: 2001-09-13 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0153605 Medline TA: J Electrocardiol Country: United States |
Other Details:
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Languages: eng Pagination: 265-9 Citation Subset: IM |
Affiliation:
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Division of Cardiology, Elmhurst Hospital Center, Mount Sinai School of Medicine, New York, NY 11373, USA. madiasj@nychhc.org |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Aged Bundle-Branch Block / diagnosis, etiology Coronary Disease / diagnosis*, physiopathology Electrocardiography* Exercise Test* Female Heart Block / diagnosis*, etiology Humans Myocardial Ischemia / diagnosis, etiology |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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