Abstract:
:To evaluate the variability in the reported accuracy of the exercise electrocardiogram (ECG) for predicting severe coronary disease, meta analysis was applied to 60 consecutively published reports comparing exercise-induced ST depression with coronary angiographic findings. The 60 reports included 62 distinct study groups comprising 12,030 patients who underwent both tests. Both technical and methodologic factors were analyzed. Wide variability in sensitivity and specificity was found (mean sensitivity 81% [range 40% to 100%, SD 12%]; mean specificity 66% [range 17% to 100%, SD 16%]). All three variables found to be significantly and independently related to sensitivity were methodologic (the exclusion of patients with right bundle branch block, the comparison with another exercise test thought to be superior in accuracy and the exclusion of patients taking digitalis). Exclusion of patients with right bundle branch block and comparison with a "better" exercise test were both significantly associated with sensitivity for the prediction of triple vessel or left main coronary artery disease. Adjustment of exercise-induced ECG changes for changes in heart rate was strongly associated with the specificity for critical disease (partial R2 = 0.436, p = 0.0001).
journal_name
J Am Coll Cardioljournal_title
Journal of the American College of Cardiologyauthors
Detrano R,Gianrossi R,Mulvihill D,Lehmann K,Dubach P,Colombo A,Froelicher Vdoi
10.1016/0735-1097(89)90388-4subject
Has Abstractpub_date
1989-11-15 00:00:00pages
1501-8issue
6eissn
0735-1097issn
1558-3597pii
0735-1097(89)90388-4journal_volume
14pub_type
杂志文章abstract:OBJECTIVES:We explored how the exercise electrocardiographic (ECG) indexes generally presumed to signify severe ischemic heart disease (IHD) correlate with coronary angiographic and scintigraphic myocardial perfusion findings. BACKGROUND:In exercise testing, it is generally assumed that the early onset of ST segment d...
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更新日期:2010-12-07 00:00:00
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