The authors have focused this study on the emergence of subacute ventr
icular free wall rupture in a seventy-six-year-old patient admitted to
hospital for inferior acute myocardial infarction. After six days he
showed clinical symptoms of bradycardia and hypotension evolving to el
ectromechanical dissociation. Given an adequate pharmacologic therapy,
the patient was submitted to echocardiography, which was believed to
be consistent with myocardial rupture, showing a moderate to large per
icardial effusion. Pericardiocentesis of 150 mL of bloody fluid result
ed in a further improvement in his hemodynamics. The patient underwent
cardiac surgery with repair of the myocardial rupture through a large
diaphragmatic infarction by a Dacron polyester fiber graft and pacema
ker placement. In conclusion the authors confirm the relevant role of
clinical data such as persistent chest pain and hemodynamic instabilit
y and the value of echocardiography in identifying subacute myocardial
free wall rupture after an episode of acute myocardial infarction.