[Ruptured myocardial infarcts].

Forty one cardiac rupture complicating acute myocardial infarction (AMI) were studied in a ten-year period. The anterior AMIs are most likely to be observed with ruptures. The interval from the onset of AMI to the clinical detection of rupture was short (acute period). Some factors such as physical work in the acute period and transmural infarctions strongly infiltrated with leukocytes cause a higher frequency of rupture. Diabetes and hypertension might be predisposing factors.