Clinical studyInitial myocardial infarction among 503 Veterans: Five-year survival
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Abstract1.1. An analysis and follow up of 503 cases of initial transmural myocardial infarction is presented.2.2. Advanced age of the patient, a history of hypertension, a definite history of angina pectoris, thromboembolic complications, shock, congestive failure, serious arrhythmias, high prolonged fever and marked leukocytosis were found to have an adverse effect upon the immediate mortality rate.3.3. Except for atrioventricular block, marked leukocytosis, shock and thromboembolic complications, the same factors had an adverse effect upon the five-year mortality rate of recovered patients.4.4. The marked variation in immediate mortality rates reported in various studies is discussed.5.5. There is a remarkable agreement in long term mortality rates of survivors reported in recent studies.6.6. In this study the mortality rate stabilized at about 4 per cent per annum for patients under fifty years of age who survived to the first anniversary of their attack. The mortality rate stabilized at about 9 per cent per annum for patients over fifty years of age who lived to the seventh month following onset of their first transmural myocardial infarction.7.7. The excess mortality rate per annum observed in recovered patients varied from 3.4 per cent for patients thirty to thirty-nine years of age, to 5.2 per cent for patients fifty to fifty-nine years of age.

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