title: Clinical significance of S-T segment elevation in lead aVR in anterior myocardial infarction. Assessment by thallium-201 exercise scintigraphy.
abstract: The significance of exercise-induced S-T elevation in aVR was studied in 57 patients with recent anterior infarction and single-vessel disease. S-T elevation in aVR was found at peak exercise in 24 patients. Although the initial defect area was similar in the groups with and without S-T elevation in aVR, the redistribution area was larger in the former group (p < 0.01). When three electrocardiographic criteria were used in the multivariate analysis, S-T elevation in aVR was the significant variable related to redistribution in the anterior wall. Thus, S-T elevation in aVR may indicate ischemia of the anterior wall.
authors.affiliation: Second Department of Internal Medicine, Kansai Medical University, Osaka, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Nakamori
authors.forename: T
authors.initials: T
authors.lastname: Iwasaka
authors.forename: T
authors.initials: T
authors.lastname: Shimada
authors.forename: H
authors.initials: H
authors.lastname: Kamihata
authors.forename: M
authors.initials: M
authors.lastname: Karakawa
authors.forename: T
authors.initials: T
authors.lastname: Matsuura
authors.forename: H
authors.initials: H
authors.lastname: Koito
authors.forename: T
authors.initials: T
authors.lastname: Sugiura
authors.forename: M
authors.initials: M
authors.lastname: Inada
authors.forename: Y
authors.initials: Y
authors.lastname: Suga
mesh_terms: D000328:Adult; D000368:Aged; D017023:Coronary Angiography; D004562:Electrocardiography / Q000379:methods; D015444:Exercise; D005260:Female; D006352:Heart Ventricles / Q000000981:diagnostic imaging; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000000981:diagnostic imaging* / Q000473:pathology / Q000503:physiopathology*; D011237:Predictive Value of Tests; D015635:Radionuclide Ventriculography; D012680:Sensitivity and Specificity; D013794:Thallium Radioisotopes
chemical_list: D013794:Thallium Radioisotopes