Possibilities of electrocardiography in the evaluation of necrotization process in posterior myocardial infarction

In a study of 46 patients with acute posterior myocardial infarction and different patterns of the necrotic period, anatomical measurements of necrosis weight were compared with the measurements of R wave amplitude and the depth of Q and S waves (the QS complex), recorded from standard leads and precordial mapping, and with serum CPK-MB activity. The results of this comparison suggest that the rate of necrosis formation can be assessed on the basis of variation in the ventricular complex, recorded from standard ECG leads. Electrocardiographic criteria of the severity of the necrotic stage of posterior myocardial infarction and repeated necrosis formation are identified.