title: The predictive value of the time course of ST segment depression during exercise testing in patients referred for coronary angiograms.
abstract: We studied the time course of ST segment depression during and after exercise testing in 462 subjects who also had coronary angiograms. Sixty-three percent of patients with late onset-early offset ST depression, previously reported to be likely to have false positive tests, had significant coronary artery disease, and 32% had three-vessel disease. Those with early onset and late offset ST depression and those with resting ST depression that was accentuated with exercise had a high prevalence of significant coronary artery disease and three-vessel disease. We found that observation of the time course of ST depression during and after exercise adds significantly to the information gained during exercise testing.
authors.affiliation: Memorial Heart Institute, Long Beach Memorial Medical Center, CA 90801-1428.
authors.forename: M H
authors.initials: MH
authors.lastname: Ellestad
authors.forename: L
authors.initials: L
authors.lastname: Thomas
authors.forename: R
authors.initials: R
authors.lastname: Ong
authors.forename: J
authors.initials: J
authors.lastname: Loh
mesh_terms: D000368:Aged; D016009:Chi-Square Distribution; D017023:Coronary Angiography; D003327:Coronary Disease / Q000175:diagnosis* / Q000453:epidemiology; D004562:Electrocardiography / Q000706:statistics & numerical data; D005080:Exercise Test / Q000706:statistics & numerical data; D005189:False Positive Reactions; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D011379:Prognosis; D012680:Sensitivity and Specificity; D013997:Time Factors