Diagnostic significance of an exercise-induced prominent U wave in acute myocardial infarction.
A prominent U wave induced by exercise testing in patients with anterior wall myocardial infarction is a highly specific but insensitive marker for the narrowing of the left circumflex or right coronary artery, although a U-wave increase alone with or without ST-segment depression may help better identify these coronary artery narrowings. In patients with inferior and/or posterior myocardial infarction, a prominent U wave is regarded as a simple electrocardiographic marker for inferior and/or posterior residual ischemia.
Chikamori
T
T
Section of Cardiology, Department of Medicine and Geriatrics, Kochi Medical School, Nankoku, Japan.
Takata
J
J
Seo
H
H
Matsumura
Y
Y
Kitaoka
H
H
Sugimoto
K
K
Doi
Y
Y
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006328:Cardiac Catheterization; D017023:Coronary Angiography; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009203:Myocardial Infarction / Q000175:diagnosis*; D012680:Sensitivity and Specificity; D014055:Tomography, Emission-Computed