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Pneumonia due to resistant Streptococcus pneumoniae.

M G Täuber1

  • 1Institute for Infectious Diseases, University of Berne, and University Hospital Inselspital, Berne. martin.taeuber@imm.unibe.ch

Schweizerische Medizinische Wochenschrift
|January 12, 2001
PubMed
Summary

Pneumococcus is increasingly resistant to common antibiotics, complicating pneumonia treatment. Newer fluoroquinolones are effective alternatives but should be used judiciously to maintain their efficacy.

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Pharmacology

Background:

  • The pneumococcus is a leading cause of community-acquired pneumonia.
  • Antibiotic resistance in pneumococcus has significantly increased over the past 10-20 years.
  • Resistance affects multiple antibiotic classes, including beta-lactams, macrolides, lincosamides, trimethoprim-sulfamethoxazole, and tetracyclines.

Purpose of the Study:

  • To review the impact of antibiotic resistance on the treatment of pneumococcal pneumonia.
  • To identify patient groups at higher risk for resistant pneumococcal infections.
  • To evaluate the efficacy of different antibiotic classes against resistant pneumococcus.

Main Methods:

  • Literature review of antibiotic resistance trends in Streptococcus pneumoniae.
  • Analysis of treatment outcomes for community-acquired pneumonia caused by resistant strains.
  • Evaluation of antibiotic class effectiveness based on resistance profiles.

Main Results:

  • Pneumococcus exhibits widespread resistance to common antibiotic classes.
  • Multidrug resistance is prevalent, making treatment challenging.
  • Beta-lactams remain viable for resistant strains due to achievable concentrations, though resistance necessitates careful consideration.
  • Resistance to macrolides, lincosamides, trimethoprim-sulfamethoxazole, and tetracyclines often renders these drugs ineffective.
  • Newer fluoroquinolones are effective against resistant pneumococci and atypical pathogens.

Conclusions:

  • Antibiotic resistance significantly complicates pneumococcal pneumonia management.
  • Risk factors for resistant infections include young children, elderly patients, recent antibiotic use, and underlying conditions.
  • Beta-lactams retain utility, but newer fluoroquinolones offer a crucial alternative, necessitating judicious use to preserve their effectiveness.

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