The study has been extended through June, 2005 for patient follow-up and data analyses. Long-term survival rates (6 to 11 years post-MI) will be estimated and the quality of life of survivors of acute MI complicated by cardiogenic shock will be studied. Extended trial data analyses will be conducted: a) To determine the early echocardiographic parameters which are associated with one year survival in cardiogenic shock patients, and to assess the interaction of these parameters with early revascularization; b) To examine differences in disease course and patient outcome as a function of age, gender, national practice, and changes in serial hemodynamic measurements, as well as to better characterize the related conditions and complications of cardiogenic shock.