title: Echocardiographic assessment of wall motion in ST-segment alternans during coronary angioplasty.
abstract: ST alternans occurs in the setting of severe and extensive myocardial ischemia. In this particular case, ST alternans occurred well after the onset of ischemia-induced left ventricular dysfunction. There is no echocardiographic evidence of beat-to-beat variation in contractility to correspond to this ST-segment phenomenon. Further studies of left ventricular function during ST alternans in patients are needed to determine whether this finding applies to all patients with ischemic heart disease.
authors.affiliation: Department of Internal Medicine, University of Florida Health Science Center, Gainesville 32610-0277, USA.
authors.forename: R A
authors.initials: RA
authors.lastname: Kerensky
authors.forename: J F
authors.initials: JF
authors.lastname: Lewis
authors.forename: G J
authors.initials: GJ
authors.lastname: Azar
authors.forename: E A
authors.initials: EA
authors.lastname: Franco
authors.forename: J A
authors.initials: JA
authors.lastname: Hill
mesh_terms: D015906:Angioplasty, Balloon, Coronary; D004452:Echocardiography; D004562:Electrocardiography; D006801:Humans; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000000981:diagnostic imaging / Q000503:physiopathology*; D018487:Ventricular Dysfunction, Left / Q000000981:diagnostic imaging*