Key result
High-dose IV epinephrine is linked to severe, reversible reverse takotsubo cardiomyopathy.
Case Report (n=1)
No
High-dose intravenous epinephrine used to treat an adverse reaction to alteplase can trigger reverse Takotsubo cardiomyopathy, which should be considered in patients developing acute heart failure after epinephrine administration.
Alerts clinicians to consider reverse Takotsubo after epinephrine; case report leaves causality and generalizability open.
Takotsubo (stress) cardiomyopathy (TTC) is an uncommon acute heart failure syndrome characterized by transient hypocontractility that usually affects a circumferential segment of the myocardium along the heart's apicobasal axis and spans multiple coronary artery territories. Classically, TTC occurs after an intense physical or emotional insult and is thought to be caused by catecholamine toxicity. The most frequent anatomic variant presents with apical hypokinesis and basal hyperkinesis, but the hypocontractility may also localize to the mid-ventricle or base, also known as "reverse TTC." Here, we describe a middle-aged woman who developed profound acute hypoxemic respiratory failure and mixed cardiogenic-distributive shock after an adverse reaction to alteplase treated with high-dose epinephrine. The patient was found to have a severely depressed left ventricular ejection fraction (10-15%) with apex-sparing hypokinesis and no evidence of obstructive coronary artery disease, consistent with reverse TTC. The patient's ejection fraction recovered to the normal range within days with supportive measures. This case highlights the distinctive echocardiographic features of this rare, potentially life-threatening form of TTC.Videos are available for this article.
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Kinzig et al. (2025) conducted a case report in Reverse Takotsubo Cardiomyopathy (n=1). Intravenous Epinephrine was evaluated on Development of reverse takotsubo cardiomyopathy. High-dose intravenous epinephrine administered for an adverse reaction to alteplase was associated with the development of severe, reversible reverse takotsubo cardiomyopathy.
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