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In vitro susceptibility of Pseudomonas maltophilia to antimicrobial agents
Abstract:
Reports on the isolation and pathogenicity of some species of Gram-negative and glucose-nonfermentative bacilli have appeared in the literature since 1962. The infections caused by those organisms have become important problems as an opportunistic infection in immunosuppressed patients. Pseudomonas maltophilia is a glucose-nonfermentative aerobic Gram-negative rod widely dispersed in nature. The role of Pseudomonas maltophilia as an opportunistic pathogen is not thoroughly established, but a few papers on clinical infections associated with P. maltophilia have been published. P. maltophilia is considerably less susceptible to certain of the most commonly-used antibiotics. We have reviewed the susceptibilities of P. maltophilia to antimicrobial agents currently available and yearly changes of the strains in resistance to the antibiotics that have been extensively used.
Insights
Pseudomonas maltophilia, a Gram-negative bacterium, is an opportunistic pathogen causing infections in immunocompromised individuals. This study reviews its antibiotic resistance, highlighting challenges in treatment.
Area of Science:
- Microbiology
- Infectious Diseases
- Antimicrobial Resistance
Background:
- Gram-negative, glucose-nonfermentative bacilli, including Pseudomonas maltophilia, are increasingly recognized as opportunistic pathogens.
- These bacteria pose significant challenges, particularly in infections affecting immunosuppressed patients.
- The clinical significance of Pseudomonas maltophilia as an opportunistic pathogen requires further elucidation.
Purpose of the Study:
- To review the antimicrobial susceptibility of Pseudomonas maltophilia.
- To analyze yearly changes in antibiotic resistance patterns of P. maltophilia strains.
- To assess the clinical implications of P. maltophilia infections.
Main Methods:
- Literature review of published studies on Pseudomonas maltophilia isolation and pathogenicity.
- Analysis of antimicrobial susceptibility data for P. maltophilia against available agents.
- Examination of trends in antibiotic resistance over time.
Main Results:
- Pseudomonas maltophilia exhibits notable resistance to commonly used antibiotics.
- The study identifies specific antimicrobial agents to which P. maltophilia strains show reduced susceptibility.
- Emerging resistance patterns over the years indicate evolving challenges in treating P. maltophilia infections.
Conclusions:
- Pseudomonas maltophilia represents a growing concern as an opportunistic pathogen.
- Its inherent resistance to many antibiotics complicates treatment strategies.
- Continuous monitoring of antimicrobial susceptibility is crucial for effective management of P. maltophilia infections.