[The differentiated electrocardiogram in the diagnosis of acute forms of ischemic heart disease].

It is suggested that differentiated electrocardiography widens the possibilities of routine electrocardiography as it enables to perform not only qualitative analysis but also to evaluate changes of the repolarization phase quantitatively. Differentiated electrocardiography makes it possible to distinguish acute myocardial infarction from other forms manifested on the ECG as negative waves.