| Normalization of abnormal T waves in ischemia. | |
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MedLine Citation:
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PMID: 1267547 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Inverted T waves due to coronary artery disease and previous myocardial infarction were observed to revert ot normal, upright position during ischemia in 38 patients. The normalization of inverted T waves was seen on the electroencephalograms of 19 patients during spontaneously occurring angina pectoris and of 11 patients when ischemia was provoked by treadmill exercise; for 8 patients, normalization occurred during the administration of isoproterenol hydrochloride and during the consequent episode of angina pectoris. The mechanism for normalization may be the algebraic sum of the extent of ST segment elevation and the amplitude of the T waves of acute ischemia plus the extent of preexisting ST segment depression and the degree of T wave inversion, to result in isoelectric ST segment and upright T wave. As with myocardial infarction, reciprocal changes may also be recorded. However, the reciprocal nature may be masked since either acute ST segment elevation of T wave inversion, or both, may not be recorded in the leads reflecting the ischemic area because of normalization. |
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Authors:
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R J Noble; D A Rothbaum; S B Knoebel; P L McHenry; G J Anderson |
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Publication Detail:
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Type: Journal Article; Research Support, U.S. Gov't, P.H.S. |
Journal Detail:
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Title: Archives of internal medicine Volume: 136 ISSN: 0003-9926 ISO Abbreviation: Arch. Intern. Med. Publication Date: 1976 Apr |
Date Detail:
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Created Date: 1976-07-06 Completed Date: 1976-07-06 Revised Date: 2006-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0372440 Medline TA: Arch Intern Med Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 391-5 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Acute Disease Angina Pectoris / diagnosis Coronary Disease / diagnosis*, physiopathology Electrocardiography* Exercise Test Humans Myocardial Infarction / diagnosis |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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