The authors study 11 cases of myocardial infarction, hospitalized in the Cardiology Department of the University Hospital Ignace Deen in Conakry, between 1981 and 1987 inclusively, in a total of 842 patients. The series includes 9 men and 2 women, with ages varying from 40 to 63 years, mean 52.4 years. From this study, it results that the frequency of myocardial infarction reaches 1.28 p. cent. From the epidemiological standpoint, the patients belong to relatively well-to-do socio-economic strata. The coronary disease in these areas is original in that it is infrequent. However, the risks factors are the same as elsewhere: hypercholesterolemia: 8 in 11 cases, obesity: 7 in 11 cases; and tobacco abuse: 5 in 11 cases.