心电图如今已经走进城乡各个大小医院和诊所,成为无人不知的最常用诊断仪器之一。当每一个心血管病病人或疑有心血管病的人走进诊室时,心电图往往是必查的一个项目。正常者因它而感到宽慰,异常者也因它而深感不安。但是,心电图正常者的心脏未必就万事大吉,而心电图异常者也并非一定有心脏病。故事一: Electrocardiogram has now entered the urban and rural areas of all sizes hospitals and clinics, become one of the most commonly used diagnostic instruments no one knows. When every patient with cardiovascular disease or suspected cardiovascular disease enters the clinic, the ECG is often an item to be checked. The normal person is relieved of it, and the abnormal person is deeply disturbed by it. However, the normal heart of electrocardiogram may not be upset, and abnormal electrocardiogram is not necessarily a heart attack. Story one: