[Findings on serum anti-myocardium antibodies in heart disease. Preliminary communication].

The research of antiheart antibodies was carried out on 174 cardiac patients. The 40% of patients with acute myocardial infarction and the 27% with other heart diseases evidenced antimyocardial antibodies. No antipericardial antibodies were found. The immunological research seems to offer an important help in the diagnosis of the atypical postmyocardial infarction syndromes, of the recidivant myopericarditis without clinical or electrocardiographic evidence; and sometimes it may reveal subclinical myocardial infarction.