Document Detail

Rest and exercise electrocardiograms and radionuclides in patients presenting for cardiac rehabilitation.
MedLine Citation:
PMID:  7226594     Owner:  NLM     Status:  MEDLINE    
The rest and exercise ECG, 201thallium myocardial scintigram (201T1), and radionuclide ventriculography are noninvasive procedures which can be used to evaluate myocardial damage and ischemia. To compare these procedures and to obtain baseline information, 85 male patients with coronary heart disease were evaluated prior to beginning an exercise program. Findings at rest included Q waves or bundle branch block in 54%; 47% had 201T1 redistribution defects and 33% an abnormal ejection fraction (EF). Of the 39 patients with normal ECGs, 31 had no 201T1 defects and only of these 31 (3%) had an abnormal EF. Abnormal EF or 201T1 redistribution defects did not occur in patients without a history of myocardial infarction. Abnormal resting EF occurred in 63% of patients with abnormal versus 7% of those with normal 201T1 redistribution scans. Exercise test results included an abnormal ST-segment response in 80%, an abnormal EF response in 65%, and a 201T1 ischemic defect in 37%. Twenty patients had exercise-induced ST elevation, and this phenomenon was more related to ventricular aneurysms than to ischemia. 201Thallium imaging, radionuclide ventriculography, and the ECG provide results regarding myocardial damage that agree by more than chance, while the exercise induced ST-segment changes did not agree with the radionuclide indications of exercise-induced ischemia.
V F Froelicher; C Sebrechts; D Streitwiesser; A Battler; M D McKirnan; W Ashburn
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  Clinical cardiology     Volume:  4     ISSN:  0160-9289     ISO Abbreviation:  Clin Cardiol     Publication Date:  1981 Mar 
Date Detail:
Created Date:  1981-07-09     Completed Date:  1981-07-09     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  7903272     Medline TA:  Clin Cardiol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  59-66     Citation Subset:  IM    
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MeSH Terms
Bundle-Branch Block / diagnosis
Cardiac Output
Coronary Disease / diagnosis,  radionuclide imaging,  rehabilitation*
Exercise Test
Middle Aged
Myocardial Infarction / diagnosis
Radioisotopes / diagnostic use*
Thallium / diagnostic use*
Grant Support
Reg. No./Substance:
0/Radioisotopes; 7440-28-0/Thallium

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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