[Antibiotic susceptibility of Pseudomonas aeruginosa]

Area of Science:

• Clinical microbiology
• Infectious diseases
• Antimicrobial resistance

Background:

• Pseudomonas aeruginosa is an opportunistic pathogen causing significant healthcare-associated infections.
• Antimicrobial resistance in P. aeruginosa poses a major treatment challenge.
• Understanding local antibiotic susceptibility patterns is crucial for effective treatment.

Purpose of the Study:

• To evaluate the in vitro susceptibility of clinical isolates of Pseudomonas aeruginosa to a panel of commonly used antibiotics.
• To identify antibiotics with significant activity against P. aeruginosa in the studied population.
• To provide data to guide empirical antibiotic therapy for P. aeruginosa infections.

Main Methods:

• Susceptibility testing of 128 clinical isolates of Pseudomonas aeruginosa.
• Evaluation against nine antibiotics: amikacin, kanamycin, gentamycin, minocycline, colistin, chloramphenicol, cefotaxime (claforan), piperacillin, and carbenicillin.
• Standard microbiological methods were employed for antibiotic susceptibility testing.

Main Results:

• Piperacillin, carbenicillin, amikacin, and cefotaxime (claforan) demonstrated efficacy against at least 54% of the tested P. aeruginosa strains.
• Varied susceptibility patterns were observed across the different antibiotics tested.
• Detailed analysis of microorganism susceptibilities to antibiotics was performed.

Conclusions:

• Piperacillin, carbenicillin, amikacin, and cefotaxime represent potentially effective treatment options for P. aeruginosa infections in this clinical setting.
• Continuous monitoring of antibiotic susceptibility is essential to combat emerging resistance.
• The findings support the judicious use of these antibiotics based on susceptibility data.