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. Quantitative and qualitative parameters of the electric  eld of the heart (EFH) are studied, localizations of the typical changes in the anterior and anterolateral myocardial infarction (MI) are speci ed on the data of electrocardiotopography (ECTG). ECTG was performed in 78 healthy subjects (control groupp — CG) and 147 patients with MI of different localization on the 3-4 week of disease (9pts with anterior and 20 pts with anterolateral MI among them). The areas of overlapping zones (OZ) in electropositivity (EP) and electronegativity (EN) are reduced due to the direction changes of the vectors of initial and  nal forces in comparison with CG. Length of the reliable dicreasing of potential and zero zone (ZZ), appearing in EP, is more in anterolateral MI, than in anterior MI. In patients with anterolateral MI the determinant importance of the prevalence of the process has the registration of QS wave in V1 lead. In anterolateral MI with QS in V1 the area of lesion is maximal. In assessment of the length of the process in anterior and anterolateral MI ZZ in EP differs. In anterior MI it spreads more to the upper levels of registration, affecting the posterior part of interventricular septum (IVS) and high posterior-septal area or the high part of IVS ( in the inferior third). In the anterolateral MI it spreads more to the lower levels of registration, involving the inferior-septal and inferior-apical areas. Quantitative indices of EFH in MI of anterior localisations ststistically reliable differ from CG and characterize the prevalence of EN in the second half of the circular dipole motion, especially on the front surface of the torax in the anterior and anterolateral MI and sharp dicreasing EP on the anterior and posterior thoracic surface.

INDICES OF THE ELECTRIC FIELD OF THE HEART IN THE ANTERIOR AND ANTEROLATERAL MYOCARDIAL INFARCTION ON THE DATA OF ELECTROCARDIOTOPOGRAPHY