[Immunological diagnosis of myocardial infarct]

The presence of the lymphocyte migration inhibition factor consequent upon sensitization of the organism to the antigen of denaturalized protein of the heart muscle was studied in 72 patients with myocardial infarction and in 40 healthy individuals. It was established that the migration inhibition factor appears in the blood 6 hours after the occurrence of myocardial infarction. The migration index is 52 +/- 2% in such patients and no less than 90% in the controls.