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甲亢都并有心肌收缩力增强,表现心率加快,心排出量增多,左室收缩期射血速率及左室压力(LVdp/dt)上升速率提高。除心率外,精确测定上述参数,需要复杂仪器或创伤性方法,很难作为临床常规检查用。通过无创伤性技术,左室收缩时间间期(STI)测定能敏感地反映甲亢患者的心脏状
Hyperthyroidism and myocardial contractility and enhanced performance of heart rate, cardiac output increased left ventricular systolic ejection rate and left ventricular pressure (LVdp / dt) increased rate. In addition to heart rate, accurate determination of these parameters requires complex instrumentation or invasive methods that are difficult to use as a routine clinical test. By noninvasive technique, left ventricular systolic time interval (STI) measurement can sensitively reflect the heart shape of patients with hyperthyroidism