[Diagnosis of acute myocardial infarct in corrected orthogonal electrocardiogram].

In 450 patients of a guarded ward for coronary diseases apart from the 15 conventional ECG-leads three corrected orthogonal leads after Frank were registered. In 141 cases an infarction could be confirmed. Using an observation of the course a recognition of the infarctions was always possible in the conventional as well as the corrected orthogonal ECG. In not penetrating infarctions a very careful analysis of the electrocardiograms and of the controls of the course is necessary, since the changes of the final ventricular deflection in the corrected orthogonal deviation system are less expressed than in the conventional leads. Thus, the corrected orthogonal electrocardiogram seems to be suitable for screening investigations concerning the recognition of a myocardial infarction.