T-wave alterations at the onset of wall motion abnormalities during dobutamine echocardiographic stress test.
At the onset of wall motion alterations during dobutamine echocardiographic stress testing, a steeper increase in the overall T-wave amplitude in the precordial leads was observed in 17 patients with baseline normal wall motion, electrocardiogram, and critical coronary stenoses compared with 11 control subjects. Eleven patients with increasing T-wave amplitude had localized apical dyssynergy, whereas 6 patients with downward displacement of the ST segment had widespread wall motion alterations also located at the basal and midsegments.
Fantini
F
F
Institute of Internal Medicine and Cardiology, University of Florence, Italy.
Barletta
G
G
Del Bene
R
R
D000368:Aged; D002316:Cardiotonic Agents; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology*; D004280:Dobutamine; D004452:Echocardiography; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006329:Heart Conduction System; D006801:Humans; D008297:Male; D008875:Middle Aged; D009200:Myocardial Contraction; D012189:Retrospective Studies
D002316:Cardiotonic Agents; D004280:Dobutamine