[Mini-mapping ECG]

63 patients with clearly defined myocardial infarction and an echocardiographically evident akinesia and hypokinesia, respectively, were examined by means of the echocardiography, the conventional ECG (12 leads) and the classical mapping ECG (69 leads). From the latter a mini-mapping ECG (12 chest electrodes) was led. IN 20% of the cases we did not find an accordance between the classical mapping ECG and the mini-mapping ECG in the localization of an echocardiographically proved disturbance of the excursion of the heart wall. In these cases small circumscribed myocardial lesions were concerned which were located particularly postero-inferiorly, the proof of which restricted itself to a thoracic surface less than 54-108 cm2 in the classical mapping ECG. But in larger lesions of the myocardium already the conventional ECG shows correct diagnostic statements. The coordination of the myocardial infarctions to the individual parts of the heart can be performed on the basis of a topographic mapping ECG card. A quantitative estimation of the electrocardiographic findings is not possible with the mini-mapping-ECG. The diagnostic valency of the mini-mapping-ECG is to be arranged only in the third place after the classical mapping ECG and the conventional ECG!