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Table 2 Changes in apical wall motion in relation to dobutamine-induced obstruction in the population studied.

From: Dobutamine stress echocardiography for assessing the role of dynamic intraventricular obstruction in left ventricular ballooning syndrome

  Dynamic obstruction
(n = 6)
No dynamic obstruction
(n = 15)
Biphasic response 3 0
Direct impairment 1 0
No changes 1 1
Partial improvement 1 6
Complete normalization 0 6
Normal baseline wall motion 0 2