hyperthyroid heart

hy·per·thy·roid heart

response of the heart to hyperthyroidism, essentially the result of sympathetic stimulation producing rapid heart rates and ultimately cardiac failure and atrial fibrillation if untreated.
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Other myocardial diseases included dilated cardiomyopathy (51, 17.9%), Myocarditis (30, 10.5%), hypertension (24, 8.4%), amyloidosis (7, 2.5%), restricted cardiomyopathy (6, 2.1%), arrhythmogenic right ventricular cardiomyopathy (3, 1.1%), hyperthyroid heart disease (2, 0.7%), left ventricle non-compaction (1, 0.4%), fabry disease (1, 0.4%) and other uncatelogued cardiomyopathy (30, 10.5%).
(2006) Hyperthyroid hearts display a phenotype of cardioprotection against ischemic stress: a possible involvement of heat shock protein 70.