title: [Reversible myocardial ischemia in hypothyroidism: Case report].
abstract: A silent, reversible myocardial ischemia with normal coronary angiography and reversible with thyroid hormone substitution, has been recently described in hypothyroid patients. We report a 49 years old male with an abnormal exercise electrocardiogram detected in a preventive medical examination. He had laboratory evidence of hypothyroidism and a history of two years of asthenia and progressive coarsening of the voice. The Thallium myocardial perfusion study, showed an alteration of coronary flow during exercise in the septum and lower wall of the left ventricle. Thyroid hormone substitution was started and three months later, a coronary angiography was normal. After six months a repeated Thallium perfusion study and exercise electrocardiogram were informed as normal.
authors.affiliation: Departamentos de Endocrinología, Enfermedades Cardiovasculares, Medicina Nuclear, Facultad de Medicina, Pontificia Universidad Católica de Chile.
authors.forename: I
authors.initials: I
authors.lastname: Quevedo
authors.forename: L
authors.initials: L
authors.lastname: Mosso
authors.forename: J M
authors.initials: JM
authors.lastname: Domínguez
authors.forename: A
authors.initials: A
authors.lastname: Fajuri
authors.forename: J C
authors.initials: JC
authors.lastname: Quintana
mesh_terms: D017023:Coronary Angiography; D006801:Humans; D007037:Hypothyroidism / Q000150:complications*; D008297:Male; D008875:Middle Aged; D017202:Myocardial Ischemia / Q000175:diagnosis / Q000188:drug therapy / Q000209:etiology*; D013794:Thallium Radioisotopes; D013974:Thyroxine / Q000627:therapeutic use
chemical_list: D013794:Thallium Radioisotopes; D013974:Thyroxine