We present three patients with left ventricular free wall rupture post acute myocardial infarction, all three treated successfully through surgery. Two of them were submitted to streptokinase IV. In all cases the diagnosis were based on clinical and echocardiographic features. The authors conclude that the diagnostic suspicion can be done easily, the echocardiogram is very useful, and the surgical treatment may led to a good short- and long-term survival