[Clinical and morphological correlational analysis of different forms of myocardial infarct]

On the basis of a mathematical analysis carried out by a "Minsk--220" computer, the correlation between the most essential morphological changes in the coronary arteries, the peculiarities of myocardial infarction, history and its clinical manifestations were studied in 320 myocardial infarction cases (148 males and 172 females over 50 years of age) with the distinction of 276 clinical and morphological signs. The numerical assessment of the conjugation indices of the morphological changes and the clinical-laboratory data permitted to evaluate the role of each of the examined factors in the genesis of primary and secondary myocardial infarctions, their spreading in the heart muscle, and their clinical manifestations. It has been demostrated that similar changes in the coronary arteries that create a background for a relative circulatory insufficiency are realized in different forms of myocardial infarction. Relative coronary insufficiency varies widely and becomes the leading cause of myocardial ischaemia. The effect of other factors is interpreted as modifying, and some of them--as triggering. The presented correlations analysis proves the rationale of assessing each case of myocardial infarction in terms of the probability theory of patho- and morphogenesis of ischaemic heart disease.