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作者用同位素心室图这种敏感的非侵入性的方法测定甲亢病人左室射血指数(LVEF),以反映左室的功能。进行此项研究的且的是通过观察甲亢病人在有效甲亢治疗前后LVEF值及其对运动和β-受体阻滞剂的反应,以此推测甲亢心肌功能改变的机制。研究对象为9例无并发症的甲亢病人(8女、1男),平均48岁(19～58岁)。所有病人在研究期间为窦性心律、无心衰。从病史、临床、心电图或胸部X线检查均无心血管病的证据。每次试验前,病人休
The authors use isotope ventricular voltammetry this sensitive non-invasive method for determination of left ventricular ejection fraction (LVEF) in patients with hyperthyroidism to reflect left ventricular function. This study was conducted to investigate the mechanism of hyperthyroidism myocardial function by observing LVEF values before and after treatment of hyperthyroidism and their response to exercise and β-blockers in patients with hyperthyroidism. The subjects were 9 hyperthyroid patients without complications (8 female and 1 male) with an average age of 48 (19-58 years). All patients had sinus rhythm during the study without heart failure. No evidence of cardiovascular disease from history, clinical, electrocardiogram or chest X-ray. Before each test, the patient off