[Micro-focal myocardial infarct with a relapsing course].

The observation was conducted in 96 patients with micro-focal myocardial infarction who developed recurrences within the acute or subacute period (up to 2 months). In 47 patients the secondary infarction was of a micro-focal nature, in 49 -- macro-focal. Recurrence of micro-focal infarctions was observed predominantly in aged patients with a long history of angina pectoris who have had repeated myocardial infarctions earlier. Recurrent macro-focal myocardial infarctions were more often noted in younger patients with a brief coronary history, their primary infarction having been of a micro-focal nature. In both groups of patients congestive cardiac insufficiency and pulmonary oedema were often noted. Cardiogenic shock was mainly seen in those with relapses of macro-focal myocardial infarction. Recurrent microfocal myocardial infarction was often characterized by the development of rhythm and conductivity disorders and high mortality rate, especially when the recurrence was of a macro-focal type.