title: Dobutamine-induced ST-segment elevation in patients without myocardial infarction.
abstract: During dobutamine stress echocardiography, ST-segment elevation developed in 20 of 372 patients (5%) without previous myocardial infarction and was associated with a transient severe asynergy of the myocardial region corresponding to the site of ST elevation. In 17 of 19 patients, ST-segment elevation was associated with a critical stenosis of the ischemia-related coronary artery, whereas in 2 of 19 patients with no critical lesions of the ischemia-related artery, coronary vasospasm was the most likely mechanism of myocardial ischemia.
authors.affiliation: Department of Cardiology, IRCCS Policlinico San Matteo, University of Pavia, Italy. previt@tin.it
authors.forename: M
authors.initials: M
authors.lastname: Previtali
authors.forename: R
authors.initials: R
authors.lastname: Fetiveau
authors.forename: L
authors.initials: L
authors.lastname: Lanzarini
authors.forename: C
authors.initials: C
authors.lastname: Cavalotti
mesh_terms: D002316:Cardiotonic Agents; D003327:Coronary Disease / Q000000981:diagnostic imaging / Q000503:physiopathology*; D004280:Dobutamine; D004452:Echocardiography / Q000379:methods; D004562:Electrocardiography; D005080:Exercise Test / Q000379:methods; D006329:Heart Conduction System / Q000000981:diagnostic imaging / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D002316:Cardiotonic Agents; D004280:Dobutamine