Transient left ventricular apical dyskinesia (apical ballooning syndrome, ABS) is characterized by transient alterations in regional wall motion, involving the mid and apical segments of the left ventricle, as well as electrocardiographic alterations, mimicking ST-elevation acute myocardial infarction, in the absence of obstructive disease of the epicardial coronary arteries. In this article, we present a series of five cases of ABS and a theoretical review of the syndrome.
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