[Retrospective study of 177 patients admitted to the coronary unit in whom the diagnosis of myocardial infarct was excluded: subgroup at high risk for cardiovascular accidents].

In attempt to know prognosis of "threatening angina" we examined, after an average of 4 years, 177 patients hospitalized in CCU for myocardial infarction for whom the diagnosis was ruled out. Cardiac events mortality rate was of 22.4% (45% in the first six months); myocardial infarction occurred in 29.5% of the cases (71% within the twelfth month) with mortality rate of 56%. After Hospital discharge 30% of the patients had angina, whereas 27.3% was alive and completely asymptomatic. These results compared with infarctuated patients group discharged in the same period from same CCU prove "threatening angina" has worse prognosis. High morbidity and mortality in the first months require early diagnostic and therapeutic measures.