[Acute rheumatic fever: a report].

Acute rheumatic fever (ARF) is still an important disease of the pediatric and adult age. The increased number of cases described in the literature in the last 10 years brought us to evaluate the ARF cases diagnosed in a Pediatric Teaching Hospital in the period 1988-1997. Most of the children with ARF presented with joint involvement even if patients with cardiac disease or chorea minor were numerous. About 50% of our patients with ARF did not refer a history of a febrile tonsillopharyngitis in the 15-60 days before the presentation of ARF. The remaining patients have had a preceding pharyngitis not adequately treated. In none of the subjects a throat swab positive for group A beta hemolytic streptococci was available. These results confirm the importance of the correct diagnosis and treatment of streptococcal pharyngitis but suggest that ARF can develop without any outstanding clinical evidence of streptococcal infection.