Prognosis of Myocardial Infarction

Forty seven (39 males and 8 females ranging 26-80 years in age) cases of 51 myocardial infarction which we have treated during past 11 years (1957-1968) were followed up and the prognosis was analyzed as follows. 1) Total mortality rate: 21 (44.7%) out of 47 patients died. 2) Immediate term prognosis: 9 (24.3%) out of 37 patients who have been followed from the onset died. 3) Long term prognosis: 12 out of 38 died during the long term follow up; 5 cases during the first year period, 3 cases in the second and each one case during the following 4th, 5th, 6th and 11th year period respectively. The survival rate of the patients, therefore, were 70.2%, 63.2% and 55.6% during the first, second and fifth year. The causes of the death of 12 cases; 8 cases with acute death or recurrent infarction, 2 cases with vascular disease of C. N. S. and with senility. 4) The prognosis of the patients without prior hypertension, anginal pain and biabetes mellitus were better than those with the prior episodes in the immediate and long term prognosis. 5) The long term prognosis of the patients who had the rehabilitation were better than those without. 6) The heigher the age, the worse the prognosis. 7) 66.6% of the mortality were observed during the first year and 85.6% in the second year. 8) The localization of infarction, as determined by E. K. G. affected the prognosis being the worst patients with co-existing anterior and posterior walls infarction, and the best with posterior infarction.