Severe Backache as a Presenting Sign of Bacterial Endocarditis

Abstract
Two patients whose presenting sign of bacteria endocarditis was a sudden and severe backache are reported. According to the literature, 25-44% of patients with bacterial endocarditis have musculoskeletal symptoms and in about 27% of these symptoms are the 1st sign of the disease. The most probable pathogenetic mechanism of these symptoms is arterial microembolization consisting of bacteria and immune complexes.