Susceptibility patterns in Pseudomonas aeruginosa causing nosocomial infections

Area of Science:

• Infectious Diseases
• Microbiology
• Public Health

Background:

• Nosocomial infections caused by Pseudomonas aeruginosa are a significant healthcare concern.
• Previous reports on P. aeruginosa nosocomial infections in the Gaza Strip are lacking.
• Antimicrobial resistance patterns require continuous monitoring to guide effective treatment strategies.

Purpose of the Study:

• To determine the distribution and patterns of antimicrobial drug resistance in P. aeruginosa isolates from nosocomial infections in the Gaza Strip.
• To identify the most and least effective antimicrobial agents against these isolates.
• To assess the influence of patient history on resistance profiles.

Main Methods:

• Collection of 131 P. aeruginosa isolates from clinical samples of nosocomial infections.
• Antimicrobial susceptibility testing was performed on all isolates.
• Data analysis to compare resistance patterns across different clinical settings and patient factors.

Main Results:

• High resistance rates were observed for ampicillin (most common) and cephalexin.
• Meropenem and amikacin demonstrated the highest antimicrobial effectiveness.
• Elevated resistance to ciprofloxacin was noted in Intensive Care Unit (ICU) and surgery departments.
• No significant differences in resistance were found related to prior admission or antimicrobial treatment for most antibiotics.

Conclusions:

• The study highlights a critical need for ongoing surveillance of antimicrobial resistance in P. aeruginosa within the Gaza Strip.
• Findings underscore the importance of monitoring antimicrobial effectiveness to inform empiric therapy and local intervention programs.
• Implementing targeted strategies is crucial to mitigate the growing threat of antimicrobial resistance.