[Bacteriological and clinical studies of SY5555 in pediatric field].

Clinical studies were carried out on SY5555, a new oral penem, in the field of pediatrics. The results obtained are summarized below. The clinical efficacies were examined in a total 31 patients consisting of 4 patients with pharyngitis, 10 with purulent tonsillitis, 4 with scarlet fever, 7 with impetigo, one with balanitis, one with cellulitis and 4 with UTI. The clinical efficacy rate was 96.8% (30/31). Bacteriological efficacies of SY5555 were examined on identified pathogens including 7 strains of Staphylococcus aureus, 6 of Streptococcus pyogenes, 3 of Enterococcus faecalis, 3 of Haemophilus influenzae, one of Escherichia coli and one of Citrobacter freundii. The bacteriological eradication rate was 81.0%. As for side effects, loose stool in one patient was noted. Abnormal laboratory findings test results included eosinophilia in 2 patients, eosinophilia and elevation of serum transaminase in one patient, and thrombocytosis in another.