NORMAN KRASNOW, M.D.
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To the editor: Kennedy and colleagues (1) have contributed important data to the etiologic interpretation of complex ventricular ectopy in apparently healthy persons. Only six of 25 subjects had significant coronary artery disease (> 50% luminal narrowing), despite a high frequency of hyperlipidemia, hypertension, and cigarette smoking as risk factors. Analysis of results of maximal exercise testing, morphology of ectopic beats on 24-hour ambulatory electrocardiography, or angiographic data did not help identify those subjects with underlying heart or coronary artery disease. The authors therefore conclude that ventricular ectopy, even complex forms, is "unrelated to significant covert coronary heart disease in
KRASNOW N. Interpretation of Ventricular Ectopy. Ann Intern Med. ;93:149–150. doi: 10.7326/0003-4819-93-1-149
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Published: Ann Intern Med. 1980;93(1_Part_1):149-150.
Cardiology, Rhythm Disorders and Devices.
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