title: Reversible left ventricular dysfunction "takotsubo" cardiomyopathy associated with hyperthyroidism.
abstract: Myocardial stunning with hyperthyroidism is rare. A 79-year old woman with hyperthyroidism was admitted to our hospital complaining of palpitations due to paroxysmal atrial fibrillation. An echocardiogram showed akinesis of the apical wall which was not observed 2 weeks before admission. Cardiac catheterization performed in the acute phase showed normal coronary arteries and no evidence of provocative spasms. The wall motion abnormality disappeared entirely after 1 week in hospital. We report a case of transient left ventricular dysfunction, so called "takotsubo" cardiomyopathy, associated with hyperthyroidism.
authors.affiliation: Department of Cardiology, Hokushin General Hospital, Nagoya 383-8505, Japan.
authors.forename: Shinsuke
authors.initials: S
authors.lastname: Miyazaki
authors.forename: Tetsuo
authors.initials: T
authors.lastname: Kamiishi
authors.forename: Noriyo
authors.initials: N
authors.lastname: Hosokawa
authors.forename: Masatoshi
authors.initials: M
authors.lastname: Komura
authors.forename: Hideo
authors.initials: H
authors.lastname: Konagai
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Sagai
authors.forename: Toshihiko
authors.initials: T
authors.lastname: Takamoto
mesh_terms: D019797:3-Iodobenzylguanidine; D000368:Aged; D017023:Coronary Angiography; D004452:Echocardiography; D004562:Electrocardiography; D005260:Female; D006321:Heart / Q000000981:diagnostic imaging; D006801:Humans; D006980:Hyperthyroidism / Q000150:complications*; D007457:Iodine Radioisotopes; D017682:Myocardial Stunning / Q000175:diagnosis / Q000209:etiology*; D011877:Radionuclide Imaging; D016698:Technetium Tc 99m Pyrophosphate; D018487:Ventricular Dysfunction, Left / Q000175:diagnosis / Q000209:etiology*
chemical_list: D007457:Iodine Radioisotopes; D019797:3-Iodobenzylguanidine; D016698:Technetium Tc 99m Pyrophosphate