心房纤颤是一种常见的心律失常 ,其本身并不致死 ,但常因合并脑梗塞等血管栓塞病而有致命的危险。甲状腺机能亢进症经常合并有心房纤颤 ,而且在突发来诊的心房纤颤患者中 ,即使没有眼球突出、多汗和甲状腺肿大等Basedow病症状 ,其血中甲状腺激素 (FT3、FT4 )水平也往往很高。因 Atrial fibrillation is a common arrhythmia that is not lethal in itself, but is often fatally dangerous due to complications such as cerebral embolism. Hyperthyroidism is often associated with atrial fibrillation, and thyroid hormones (FT3, FT4) in patients with atrial fibrillation, even in the absence of prominent prominence, hyperhidrosis and goiter based on Basedow disease symptoms, The level is also often high. because