Reversible dilated cardiomyopathy due to subclinical hyperthyroidism.
We present a patient without primary heart disease in whom subclinical hyperthyroidism was accompanied by manifestations of dilated cardiomyopathy, as evaluated by echocardiography, coronary angiography, and radionuclide ventriculography. His condition was reversed 6 months after conventional treatment (furosemide, carvedilol, angiotensin-converting-enzyme inhibitor and thiamazole administration). This patient represents an exceptional case, as overt congestive heart failure with left ventricular dilatation and depressed ventricular ejection fraction is not a common finding in patients with hyperthyroidism, let alone patients with subclinical hyperthyroidism and no underlying heart disease.
Tsarouhas
Kostantinos
K
2nd Department of Cardiology, Amalia Fleming General Hospital, Athens, Greece.
Kafantaris
Ioannis
I
Antonakopoulos
Athanasios
A
Vavetsi
Spiridoula
S
Pavlidis
Pavlos
P
Constantinou
Loizos L
LL
D000328:Adult; D002311:Cardiomyopathy, Dilated / Q000000981:diagnostic imaging* / Q000188:drug therapy / Q000209:etiology*; D017023:Coronary Angiography; D006801:Humans; D006980:Hyperthyroidism / Q000150:complications* / Q000188:drug therapy; D008297:Male; D016896:Treatment Outcome; D014463:Ultrasonography