Aboukhoudir F, Aboukhoudir I, Rekik S. [Biphasic reaction to dobutamine stress echocardiography as a predictor of coronary artery spasm: Apropos of 3 cases].
Ann Cardiol Angeiol (Paris) 2015;
64:372-377. [PMID:
26602744 DOI:
10.1016/j.ancard.2015.09.028]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2015] [Accepted: 09/03/2015] [Indexed: 06/05/2023]
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.
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