title: [Biphasic reaction to dobutamine stress echocardiography as a predictor of coronary artery spasm: Apropos of 3 cases].
abstract: Dobutamine-related coronary spasm is a possible complication of dobutamine stress echocardiography potentially explaining a part of some erroneously labeled "false positive tests". Presently, there are no established echographic predictors of coronary spasm. We report 3 clinical cases in which dobutamine-induced spasm was strongly suspected on the basis of a biphasic reaction including an initial deterioration rapidly followed by a spontaneous recovery in well-defined echocardiographic territory. In all three cases, we were able to confirm spasm of angiography. The biphasic reaction may constitute a potential predictor of spasm in patients with positive dobutamine stress tests.
authors.forename: F
authors.initials: F
authors.lastname: Aboukhoudir
authors.forename: I
authors.initials: I
authors.lastname: Aboukhoudir
authors.forename: S
authors.initials: S
authors.lastname: Rekik
mesh_terms: D000368:Aged; D003329:Coronary Vasospasm / Q000209:etiology*; D025401:Echocardiography, Stress / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011237:Predictive Value of Tests