甲状腺机能亢进(简称甲亢)是指多种病因导致体内甲状腺激素(TH)分泌过多,引起以神经、循环、消化等系统兴奋性增高和代谢亢进为主要表现的一组疾病的总称,而心脏作为甲状态腺素作用的主要靶器官受累,作心电图检查时多有异常。临床资料一般资料:本组男性56例,女性84例,年龄18～63岁,以20～40岁居多。心电图异常改变者有87例,占全部病人的62%,其中窦速有38例,心律失常有20例,左室高电压有8例,传导阻滞有4例,P波振幅改变有6例,ST-T改变有11例。讨论1窦性心动过速:心率>100次/min,在甲亢患者中多见。过多的甲状腺激素能增加心肌细胞线粒体的数量,增强线粒体的氧化磷酸化过程,具有肯定的正性肌力与心率作用。此 Hyperthyroidism (referred to as hyperthyroidism) refers to a variety of causes lead to excessive secretion of thyroid hormone (TH) in the body, causing nervous, circulatory, digestive system excitability and metabolic hyperfunction as the main performance of a group of diseases in general, and heart As the role of the main target organ status of adenosine involvement, for the more abnormal ECG examination. Clinical data General information: The group of 56 males and 84 females, aged 18 to 63 years old, mostly in the 20 to 40 years old. There were 87 cases of abnormal ECG changes, accounting for 62% of all patients, of which 38 cases of sinus speed, arrhythmia in 20 cases, 8 cases of left ventricular high voltage, conduction block in 4 cases, P wave amplitude changes in 6 cases , ST-T changes in 11 cases. Discussion 1 Sinus tachycardia: heart rate> 100 beats / min, more common in patients with hyperthyroidism. Too much thyroid hormone can increase the number of mitochondria in myocardial cells and enhance the mitochondrial oxidative phosphorylation process, with positive positive and heart rate effects. this