[Absence of ultra-structural histological lesions of the myocardium in cardiac insufficiency of hyperthyroidism].
Myocardial failure may complicate hyperthyroidism. Some authors consider that preexisting myocardial lesions are necessary for its development. We studied a case of myocardial failure, presenting as a dilated cardiomyopathy, complicating hyperthyroidism in a 57 year old woman. She had a bio-clinical evaluation and a haemodynamic study with endomyocardial biopsy of the left ventricule. No valvular or coronary disease were noted. The light and ultra-microscopic aspects of the myocardium were within normal limits. We conclude that preexisting myocardial lesions are not essential to the development of myocardial failure complicating hyperthyroidism.
D005260:Female; D006333:Heart Failure / Q000209:etiology / Q000276:immunology / Q000473:pathology*; D006439:Hemodynamics; D006801:Humans; D006980:Hyperthyroidism / Q000150:complications*; D008875:Middle Aged; D009206:Myocardium / Q000276:immunology / Q000648:ultrastructure*
Absence de lésions histologiques ultra-structurales du myocarde dans l'insuffisance cardiaque de l'hyperthyroïdie.