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Penicillins for treatment of pneumococcal pneumonia: does in vitro resistance really matter?

Lance R Peterson1

  • 1Evanston Northwestern Healthcare Research Institute, Division of Microbiology, Department of Pathology and Laboratory Medicine, Northwestern University, Evanston, IL, USA. lancer@northwestern.edu

Clinical Infectious Diseases : an Official Publication of the Infectious Diseases Society of America
|December 16, 2005
PubMed
Abstract

Insights

Beta-lactam antibiotics show superior efficacy in treating Streptococcus pneumoniae pneumonia compared to macrolides and fluoroquinolones. Current guidelines for community-acquired pneumonia should prioritize beta-lactams for optimal patient outcomes.

Area of Science:

  • Infectious Diseases
  • Pharmacology
  • Microbiology

Background:

  • Increasing antimicrobial resistance in respiratory pathogens poses clinical challenges.
  • Streptococcus pneumoniae resistance to beta-lactams impacts treatment guidelines for respiratory tract infections.

Purpose of the Study:

  • To critically review the published medical literature on antimicrobial resistance in Streptococcus pneumoniae.
  • To evaluate the clinical efficacy of different antibiotic classes for treating pneumococcal pneumonia.

Main Methods:

  • A critical review of the existing medical literature was performed.

Main Results:

  • Limited reports document microbiologic failure with parenteral penicillin-class antibiotics for pneumococcal pneumonia.
  • Numerous reports indicate treatment failure with quinolone-class (n ≥ 21) and macrolide-class (n ≥ 33) antibiotics in pneumococcal pneumonia.

Conclusions:

  • Beta-lactam antibiotics remain the recommended optimal in-hospital therapy for community-acquired pneumonia.
  • Adjunctive macrolide or fluoroquinolone therapy is recommended for potential atypical pathogens.

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