About Video

This video clip parasternal long-axis view with dobutamine stress echocardiogram performed for viability assessment showing different types of responses. Mid-anterospetum, midposterolateral segment, mid- and apical anterolateral segments and anterior wall are visibly dysfunctional at baseline (upper left), significantly improve at low-dose (upper right) but worse at peak-dose (lower right). This is classical biphasic response suggestive of viability with ischemia (i.e. hibernation). In comparison, inferior wall remains akinetic throughout the test suggestive of lack of viability.