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Glycopeptides in the treatment of staphylococcal infections
1Institute for Environmental Medicine and Hospital Epidemiology, University Hospital Freiburg, Germany.
Abstract:
Gram-positive bacteria are rapidly becoming the most important pathogens in nosocomial infections. In recent years, attention and concern have been focused on the gram-positive bacteria, Staphylococcus aureus, Staphylococcus epidermidis and Enterococcus faecalis. These microorganisms are well equipped to exert their pathogenic effects and to display virulence. Treatment of severe infections caused by gram-positive bacteria remains difficult because of the increase in infections caused by methicillin-resistant staphylococci, and this has renewed interest in the glycopeptide antibiotics, vancomycin and teicoplanin. According to National Nosocomial Infection Surveillance Study data, in 1989, 60% of coagulase-negative staphylococci and 22% of Staphylococcus aureus strains showed methicillin resistance. Among other factors, successful antimicrobial therapy depends on rapid and reliable antibiotic delivery to the infection site at a concentration adequate to inhibit the majority of infecting organisms. Glycopeptides may be important in the therapy of catheter-related infections, which are mainly caused by coagulase-negative staphylococci and Staphylococcus aureus.
Insights
Gram-positive bacteria are major causes of hospital infections, with rising resistance to antibiotics. Glycopeptide antibiotics like vancomycin are crucial for treating severe infections, especially those involving methicillin-resistant strains.
Area of Science:
- Infectious Diseases
- Microbiology
- Pharmacology
Background:
- Gram-positive bacteria, including Staphylococcus aureus, Staphylococcus epidermidis, and Enterococcus faecalis, are increasingly significant pathogens in nosocomial infections.
- The rise of methicillin-resistant staphylococci complicates the treatment of severe gram-positive bacterial infections.
Purpose of the Study:
- To highlight the growing challenge of gram-positive nosocomial infections.
- To emphasize the importance of glycopeptide antibiotics in treating infections caused by resistant gram-positive bacteria.
Main Methods:
- Review of National Nosocomial Infection Surveillance Study data.
- Analysis of antibiotic resistance trends in staphylococci and enterococci.
Main Results:
- In 1989, 60% of coagulase-negative staphylococci and 22% of Staphylococcus aureus strains exhibited methicillin resistance.
- Effective antimicrobial therapy requires timely and adequate antibiotic delivery to the infection site.
Conclusions:
- Glycopeptide antibiotics, such as vancomycin and teicoplanin, are vital for managing severe gram-positive infections, particularly those involving methicillin-resistant strains.
- Glycopeptides show potential utility in treating catheter-related infections predominantly caused by coagulase-negative staphylococci and Staphylococcus aureus.