alexa Metaanalysis of short course antibiotic treatment for group a streptococcal tonsillopharyngitis.


Journal of Antimicrobial Agents

Author(s): Casey JR, Pichichero ME

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Abstract OBJECTIVE: To compare bacterial and clinical cure rates in patients with group A streptococcal (GAS) tonsillopharyngitis treated with oral beta-lactam or macrolide antibiotics for 4-5 days versus 10-day comparators. METHODS: Medline, Embase, reference lists and abstract searches were used to identify available publications. Trials were included if there was bacteriologic confirmation of GAS tonsillopharyngitis, random assignment to antibiotic therapy for a beta-lactam or macrolide antibiotic of a shortened course versus a 10-day comparator and assessment of bacteriologic outcome using a throat culture. RESULTS: Twenty-two trials involving 7470 patients were included in 4 separate analyses. Trials were grouped by a short course of cephalosporins (n = 14), macrolides (other than azithromycin) (n = 6) and penicillin (n = 2). Cephalosporin trials were further grouped by the comparator, penicillin or the same cephalosporin. Short course cephalosporin treatment was superior for bacterial cure rate compared with 10 days of penicillin [odds ratio (OR), 1.47; 95\% confidence interval (CI), 1.06-2.03]. For trials with short course macrolide therapy, OR = 0.79 (95\% CI 0.59-1.06) neither the macrolides nor the 10-day comparators. Short course penicillin therapy was inferior in achieving bacterial cure versus 10 days of penicillin, OR = 0.29 (95\% CI 0.13-0.63). Clinical cure rates mirrored bacteriologic cure rates. CONCLUSION: Superior cure rates can be achieved with shortened courses of cephalosporin therapy, but 5 days is inferior to 10 days of penicillin treatment.
This article was published in Pediatr Infect Dis J and referenced in Journal of Antimicrobial Agents

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