[Unusual localization of the excitation impulse block in acute myocardial infarct]

A case of an unusual localization of the conductivity block is described in a female patient with acute myocardial infarction, that was demonstrated by way of recording the electrical activity of the cardiac conductive pathways. The peculiarity of the case was also demonstrated to consist in the multiplicity of the levels of conductivity disorders. For the first time in the literature, the development of a block in the main stem of the bundle of his was traced in detail.