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Five-day oral cefditoren pivoxil versus 10-day oral amoxicillin for pediatric group A streptococcal pharyngotonsillitis

Abstract

We prospectively compared the efficacy of oral cefditoren-pivoxil and conventional oral amoxicillin for pharyngotonsillitis caused by group A streptococcus in children. Either oral cefditoren-pivoxil (3 mg/kg t.i.d. for 5 days) or amoxicillin (10 mg/kg t.i.d. for 10 days) was administered to patients with group A streptococcal pharyngotonsillitis attending the pediatric outpatient clinic of Showa Hospital (Konan, Japan) between January and December 2006. Diagnosis was based on isolation of bacteria from a pharyngeal swab. Culture was always done to confirm eradication, and urinalysis and follow-up were performed at least once weekly for 4 weeks. Among 258 patients, 103 (aged 5.5 ± 2.3 years) received cefditoren-pivoxil and 155 (aged 5.2 ± 2.0 years) received amoxicillin. There were no significant between-group differences in age, sex, or symptoms. Eradication was confirmed in 99% (102/103) of the cefditoren-pivoxil group and 100% of the amoxicillin group. Recurrence within 4 weeks occurred in 8 and 15 patients in the cefditoren-pivoxil and amoxicillin groups, respectively, showing no significant difference in the recurrence rate, and all isolates had the same serotypes as before. There were no clinically significant adverse reactions or complications. The 50%/90% minimum inhibitory concentrations (μg/ml) of cefditoren-pivoxil and amoxicillin for the 258 isolates were ≤0.03/≤0.03 and ≤0.03/0.06, respectively, so all isolates were susceptible to both agents. Because the efficacy for pediatric group A streptococcus pharyngotonsillitis was similar between oral cefditoren-pivoxil for 5 days and amoxicillin for 10 days, the shorter treatment period may make the former regimen preferable.

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Correspondence to Takao Ozaki.

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Ozaki, T., Nishimura, N., Suzuki, M. et al. Five-day oral cefditoren pivoxil versus 10-day oral amoxicillin for pediatric group A streptococcal pharyngotonsillitis. J Infect Chemother 14, 213–218 (2008). https://doi.org/10.1007/s10156-008-0602-7

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  • DOI: https://doi.org/10.1007/s10156-008-0602-7

Key words

  • Group A streptococcus
  • Pharyngotonsillitis
  • Cefditoren-pivoxil
  • Amoxicillin