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Published on: April 28, 2014

Considerations in the use of antibiotics for streptococcal pharyngitis

Stephen Brunton1, Michael Pichichero

  • 1Cabarrus Family Medicine Residency Concord, NC, USA.

The Journal of Family Practice
|August 18, 2006
PubMed

Insights

Reevaluating penicillin for Group A beta-hemolytic streptococcus (GABHS) pharyngitis is crucial due to frequent treatment failures. Cephalosporins may offer a more effective alternative for GABHS eradication, warranting a reassessment of their role.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Pharmacology

Background:

  • Group A beta-hemolytic streptococcus (GABHS) pharyngitis diagnosis relies on microbiologic testing.
  • Penicillin has been the standard first-line GABHS treatment, but concerns about efficacy exist.
  • Frequent bacteriologic and clinical failures with penicillin necessitate exploring alternative treatments.

Purpose of the Study:

  • To reevaluate the role of penicillin in treating GABHS pharyngitis.
  • To assess the potential benefits of cephalosporins as an alternative to penicillin.
  • To examine factors contributing to penicillin treatment failure in GABHS pharyngitis.

Main Methods:

  • Review of clinical trials, pooled multicenter studies, and meta-analyses on GABHS pharyngitis treatment.
  • Analysis of data on bacteriologic and clinical failure rates for penicillin and cephalosporins.
  • Evaluation of potential contributing factors to treatment failure, including resistance, reinfection, and adherence.

Main Results:

  • Considerable data indicate frequent bacteriologic and clinical failures with penicillin therapy for GABHS pharyngitis.
  • Potential reasons for penicillin failure include bacterial coaggregation, reinfection, nonadherence, and immune response blunting.
  • Some evidence suggests cephalosporins may have lower treatment failure rates compared to penicillin.

Conclusions:

  • A reassessment of penicillin's role in GABHS pharyngitis treatment is warranted due to observed failure rates.
  • Cephalosporins demonstrate potential advantages, including activity against beta-lactamase-producing bacteria and less frequent dosing.
  • Further evaluation of cephalosporins for GABHS pharyngitis is appropriate given evolving clinical evidence.

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