Key result
Transient hyperthyroidism is linked to severe, reversible wall motion abnormalities mimicking tako-tsubo syndrome or MI.
Why the study?
Cardiac wall motion abnormalities such as tako-tsubo syndrome or myocardial infarction may be induced in patients with mild and transient hyperthyroidism, but clinical observations are limited.
Case Report (n=1)
No
Answers are grounded in this paper and cite their sources.
Mild and transient hyperthyroidism may induce tako-tsubo syndrome or myocardial infarction.
A 74-year-old woman, with a history of hypertension and hyperlipidemia, was admitted to our hospital. She was found to have a sinus tachycardia with ST-segment elevations in leads II, III, (a)V(F), and V(3) through V(6) in electrocardiography, hypokinesis of the left ventricular apex by echocardiography, and normal findings on coronary angiography. Blood analysis revealed an increase in the creatine kinase MB fraction, a significant positive detection in troponin T, and transient elevations in the concentrations of free triiodothyronine, free thyroxine, thyroid globulin antibody, and thyroid peroxidase antibody. Defects in myocardial perfusion and fatty acid metabolism in the apical area were also demonstrated by myocardial scintigraphy. These data suggest that tako-tsubo syndrome or myocardial infarction may be induced in patients with mild and transient hyperthyroidism.
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Sakaki et al. (2004) conducted a case report in Transient hyperthyroidism with cardiac wall motion abnormalities (n=1). Transient hyperthyroidism was evaluated on Cardiac wall motion abnormalities. Transient hyperthyroidism was associated with the development of severe but reversible cardiac wall motion abnormalities mimicking tako-tsubo syndrome or myocardial infarction.
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