ROBERT DETRANO, M.D.
To the editor: Studies about exercise testing have been criticized because of methodologic flaws in their reporting (1, 2). The article by Armstrong and associates (3) deserves such criticism. The authors conclude that exercise echocardiography adds complementary information to that given by exercise electrocardiography for the diagnosis of angiographic coronary disease. This conclusion is largely based on the results of both exercise tests given to 44 patients with angiographic disease but without previous myocardial infarction. The authors report that only 19 patients had ischemic exercise electrocardiograms, whereas 35 had abnormal exercise echocardiograms. To arrive at this unusually low sensitivity for
DETRANO R. Treadmill Exercise Testing. Ann Intern Med. ;106:771. doi: 10.7326/0003-4819-106-5-771_1
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Published: Ann Intern Med. 1987;106(5):771.
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