To the diagnosis of transitional forms of coronary insufficiency

To date, the clinical picture of the main forms of coronary insufficiency (angina pectoris and large-focal myocardial infarction) has been studied in some detail. However, in recent years, clinicians and pathologists have begun to identify transitional forms of coronary insufficiency, which, according to A. L. Myasnikov, include small-focal myocardial infarction and acute focal myocardial dystrophy. Differential diagnosis of these forms based only on clinical, ECG and generally accepted laboratory tests is extremely difficult, and sometimes impossible. Recently, a number of additional research methods have been proposed, among which a special place is occupied by the study of biochemical parameters that allow, according to Yu. V. Anshelevich, G. V. Gracheva, S. M. Gusman et al., P. V. Pakhomova, etc., to distinguish between these two forms of coronary insufficiency.