Clinical significance of S-T segment elevation in lead aVR in anterior myocardial infarction. Assessment by thallium-201 exercise scintigraphy.
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.
Nakamori
H
H
Second Department of Internal Medicine, Kansai Medical University, Osaka, Japan.
Iwasaka
T
T
Shimada
T
T
Kamihata
H
H
Karakawa
M
M
Matsuura
T
T
Koito
H
H
Sugiura
T
T
Inada
M
M
Suga
Y
Y
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
D013794:Thallium Radioisotopes