The purpose of this work is to study the causes of early and late in-hospital mortality of myocardial infarction, to define elements of prognosis and to attempt to prevent the fatal outcome of the coronary disease. This study concerns 107 men and 33 women, between the ages of 30 and 83 years (mean age 62.8 years). The total mortality is 12% (early: 6.5%, late: 5.5%. 66% of the patients are over 60 and 45% present 3 or more coronary risks factors. The clinical picture is characterized by frequent initial complications (84% of the cases), dominated by hemodynamic failure. The infarction is most of the time located anteriorly (56.6% of the cases). Primary cardiogenic shock represents the main cause of early mortality (55.3%). A recurrent infarction represents 75% of the causes of late deaths. Tri-vessels involvement and alteration of the ventricular function are noted in 9 out of 14 coronary arteriograms. Prognosis factors are proposed to differentiate high risk patients requiring an early coronary arteriogram in view of a specific medical and/or surgical treatment. The best signs of a poor prognosis are: tri-vessels involvement and alteration of the ventricular function.
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