[Beta-haemolytic group A streptococcal acute pharyngo-tonsillitis in pediatric patients: a clinical and epidemiological study].

Authors compared the efficacy and safety of 10-day regimen of Cefaclor (CEC), oral suspension, at the dose of 25 mg/kg BID, and Amoxicillin/clavulanic acid (AMC), and Erythromycin (E) both given TID at the dose of 15 mg/kg in the treatment of proven group A beta hemolytic streptococcal pharyngo-tonsillitis. Of the 673 enrolled pediatric patients, 245 were selected and assigned to three groups of treatment (85 received CEC, 78 received AMC and 82 received E) and 217 were evaluated for efficacy. Clinical evaluations were performed on days 5 and 10 of treatment and 20 days after its completion (follow up). Before treatment, on treatment day 10 and at follow up throat swab cultures were performed. In evaluable patients the post-therapy clinical success and bacteriological eradication rate for CEC was 91.8% (68 of 74 evaluable patients); the rate for AMC and E were 90.5% (67/74) and 76.8% (53/69) respectively. At follow up bacteriological eradication was observed in 63 of 68 clinically cured patients (92.6%) in the CEC treatment group; in 64 of 67 (95.5%) in the AMC treatment group and in 49 of 53 (92.4%) in the E treatment group. Adverse events occurred in 24 of 217 (11.05%) treated patients and the incidence of side effects was lower in CEC group. In vitro sensitivity tests showed 37.9% of isolated SBEGA strains resistant to macrolides and 32% of SBEGA strains resistant to tetracycline. In our experience Cefaclor administered BID is as effective and more safe than Amoxicillin/clavulanic acid and more effective than Erythromycin both given TID.