title: Hypothyroid patient with Brugada electrocardiographic waveforms: case report.
abstract: We report a 46-year-old man who presented with hypothyroidism. An electrocardiogram obtained at the time of the first examination revealed Brugada electrocardiographic (Brugada-ECG) waveforms in leads V1 to V3. The patient and his family had no history of arrhythmia and syncopal attack. The Brugada-ECG waveforms disappeared with the normalization of thyroid function. The case suggested that hypothyroidism could lead to secondary Brugada-ECG waveforms because of its effect on myocardial ion channels.
authors.affiliation: Department of Cardiology, Henan Provincial People's Hospital, Zhengzhou, China. zhaoyonghui2000@stu.xjtu.edu.cn
authors.forename: Yong-Hui
authors.initials: YH
authors.lastname: Zhao
authors.forename: Jia-Ying
authors.initials: JY
authors.lastname: Zhang
authors.forename: Yu
authors.initials: Y
authors.lastname: Xu
authors.forename: Xue-Ya
authors.initials: XY
authors.lastname: Zhang
mesh_terms: D053840:Brugada Syndrome / Q000175:diagnosis* / Q000188:drug therapy / Q000209:etiology*; D050031:Hashimoto Disease / Q000175:diagnosis / Q000188:drug therapy; D006801:Humans; D007037:Hypothyroidism / Q000150:complications* / Q000188:drug therapy; D008297:Male; D008875:Middle Aged; D013974:Thyroxine / Q000627:therapeutic use; D016896:Treatment Outcome
chemical_list: D013974:Thyroxine