Short retrospective review of 77 cases of bacterial endocarditis, observed in the 1980-84 period, and diagnosed by means of echography and blood culture. Alfa haemolytic streptococcus strains were isolated (47.6% of 42 isolated strains) followed by Staphylococcus aureus (16.7%) and Staphylococcus epidermidis (11.9%). Positive bloodculture were more frequent in the patients with valvular prosthesis. The results are analysed and some comments are done.