PMID: 696633Oct 1, 1978Paper

Detection of critical coronary lesions with treadmill exercise testing: fact or fiction?

The American Journal of Cardiology
R Levites, G J Anderson

Abstract

This study was designed to determine whether treadmill exercise testing could identify patients with critical coronary lesions. Critical lesions were defined as obstruction of the left main coronary artery or concomitant narrowing of the left anterior descending and circumflex coronary arteries proximal to any major branches. The time of onset and degree of S-T segment depression were evaluated in 25 patients with critical lesions and in 50 patients with other types of lesions. S-T segment depression of 2 mm or more was present in 82 percent of patients with left main coronary disease and in 71 percent of patients with left main coronary equivalent lesions (both P less than 0.02 when compared with 36 percent of patients with other lesions). However, half of the 37 patients with this degree of S-T segment depression had noncritical lesions. Ischemic changes appearing in the first 3 minutes of exercise were seen in 63 percent of patients with left coronary disease and 35 percent of the patients with left main coronary disease equivalent lesions (P less than 0.001 and P less than 0.002, respectively, when compared with only 6 percent of patients with other lesions). The incidence of triple vessel disease was significantly greater ...Continue Reading

Citations

Jan 1, 1980·Journal of Medical Systems·M L PetrovickE D Haak
Jun 1, 1984·Journal of the American College of Cardiology·R I HambyI Hoffman
Jul 1, 1986·The American Journal of Cardiology·R M SchneiderR H Helfant
Nov 1, 1988·Disease-a-month : DM·V F FroelicherA Janosi
Mar 1, 1989·American Heart Journal·F A ShawlJ E Davia
Jul 1, 1986·Medical Decision Making : an International Journal of the Society for Medical Decision Making·T H LeeL Goldman
Oct 1, 1988·Medical Decision Making : an International Journal of the Society for Medical Decision Making·T H LeeL Goldman

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