A case report: ‘happy heart’ syndrome in a patient treated with atomoxetine for attention deficit hyperactivity disorder

BACKGROUND: Takotsubo syndrome (TS) is an acute cardiac disease entity with a clinical presentation resembling that of an acute coronary syndrome. Numerous physical stress factors including pheochromocytoma, epinephrine, and norepinephrine administration, and even physiological exercise have been reported to induce TS. Takotsubo syndrome induced by medications causing elevation of plasma norepinephrine as serotonin-norepinephrine reuptake inhibitor or selective norepinephrine reuptake inhibitor (atomoxetine) has been reported. CASE SUMMARY: We report on the case of a 49-year-old woman who was on atomoxetine treatment for attention deficit hyperactivity disorder, developed TS in association with sexual intercourse. DISCUSSION: The TS pattern in this patient was the type of mid-apical ballooning with apical tip-sparing at presentation. Two days later, TS evolved to mid-ventricular pattern. Takotsubo syndrome resolved completely 1 month after the index presentation.