Resistance surveillance program report for selected European nations (2011)

Area of Science:

• Clinical Microbiology
• Infectious Diseases
• Public Health Surveillance

Background:

• The Regional Resistance Surveillance study monitored antimicrobial resistance patterns across 21 European countries in 2011.
• Understanding resistance trends is crucial for effective treatment strategies and public health interventions.

Purpose of the Study:

• To assess the prevalence of antimicrobial resistance in various bacterial pathogens across European hospitals.
• To identify specific resistance mechanisms and their geographical distribution.

Main Methods:

• Testing of 12,572 bacterial strains from 47 hospitals against a panel of antimicrobial agents.
• Interpretation of results using contemporary published breakpoints.
• Detection of specific resistance genes and mechanisms, including carbapenemases.

Main Results:

• Staphylococcus aureus showed high susceptibility to linezolid, tigecycline, and vancomycin, with methicillin resistance varying significantly by country.
• Extended-spectrum beta-lactamase (ESBL) phenotypes were common in Escherichia coli and Klebsiella spp., especially in Eastern and Southern Europe.
• Carbapenem resistance was observed in Klebsiella spp., and various carbapenemases (VIM, IMP, KPC, NDM, OXA) were detected.

Conclusions:

• Gram-positive cocci generally remain susceptible to several antimicrobial agents.
• Widespread prevalence of beta-lactamase-mediated resistance mechanisms in Gram-negative bacilli, particularly in Eastern and Southern Europe, severely limits treatment options.
• Urgent need for enhanced antimicrobial stewardship programs to combat rising resistance.