"Happy Heart Syndrome" Followed Up with Cardiac Magnetic Resonance Imaging.

We herein report a 49-year-old woman who developed "happy heart syndrome" while watching a family theater performance. She was followed up with cardiac magnetic resonance imaging (CMR). The time course of the CMR findings was similar to that previously reported for Takotsubo cardiomyopathy (TTC), including the form of "broken heart syndrome." CMR findings for "happy heart syndrome" have not been sufficiently investigated. However, the CMR findings in this case suggest that "happy heart syndrome" and other conventional TTC including "broken heart syndrome" are clinically a single disease, at least from an imaging aspect.