ABSTRACT
Clinical, instrumental, and biochemical examinations were carried out in 587 patients with transmural myocardial infarctions (381 patients with the first infarction and 206 ones with the repeated disease). Heart ruptures occurred in 5.7% of cases. Clinical forms and risk factors of heart rupture are described. Another group consisted of 815 patients with the first transmural infarction; in 44 patients at a high risk of heart ruptures preventive therapy with pantripin and contrykal was carried out. The incidence of heart ruptures was reduced twofold in this group as against the controls. Heart rupture risk factors in patients with myocardial infarction are described. The syndrome of excessive resorption in the pre-rupture period of myocardial infarction was singled out, manifesting by increased activities of lactate dehydrogenase, lysosomal enzymes, and elevated level of cardiac antigen. Lysosomal enzyme levels were measured in the myocardium in heart ruptures. The authors have defined the notion of 'mechanical incompetence' in myocardial infarction, consisting in inability of the involved myocardium to resist the intraventricular blood pressure. The program of heart rupture prevention in myocardial infarction is presented.
