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"Difficult to treat infections" pharmacokinetic and pharmacodynamic factors--a review

J M Schierholz1, J Beuth, G Pulverer

  • 1Institute for Medical Microbiology and Hygiene of the University of Cologne, Germany.

Acta Microbiologica Et Immunologica Hungarica
|March 29, 2000
PubMed

Insights

Difficult-to-cure infections, including endocarditis and abscesses, pose treatment challenges due to poor antibiotic penetration and bacterial resistance. This study explores antibiotic diffusion, pharmacodynamics, fibrin

Area of Science:

  • Infectious Diseases
  • Pharmacology
  • Microbiology

Background:

  • Difficult-to-cure infections are characterized by poor antibiotic penetration into infected sites, altered bacterial metabolism, and inadequate host immune response.
  • These challenging infections include endocarditis, infected urinary tract stones, abscesses, infected fibrin clots (septic thromboemboli, hematomas, catheter-related infections), and foreign body infections.

Purpose of the Study:

  • To analyze the key factors influencing the therapeutic efficacy of antibiotics against difficult-to-cure infections.
  • To investigate the role of antibiotic diffusion kinetics, pharmacodynamic and pharmacokinetic properties, fibrin, and synergistic antibiotic combinations in treating these infections.

Main Methods:

  • Review of literature focusing on antibiotic diffusion into vegetations.
  • Analysis of pharmacodynamic and pharmacokinetic aspects relevant to difficult-to-cure infections.
  • Examination of the role of fibrin in infectious processes and the impact of antibiotic combinations.

Main Results:

  • Antibiotic diffusion into infected vegetations is a critical factor limiting treatment success.
  • Specific pharmacokinetic and pharmacodynamic strategies are necessary for effective therapy.
  • Fibrin plays a significant role in these infections, and synergistic antibiotic combinations show promise.

Conclusions:

  • Optimizing antibiotic therapy for difficult-to-cure infections requires addressing poor penetration, bacterial resistance, and host factors.
  • Understanding the interplay between antibiotic properties, fibrin, and bacterial physiology is crucial for developing effective treatment regimens.
  • Further research into synergistic antibiotic combinations holds potential for improving outcomes in challenging infectious diseases.

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