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Stenotrophomonas maltophilia: Significant contemporary hospital pathogen - review
1Department of Clinical Microbiology, 2nd Faculty of Medicine, Charles University, 150 06, Prague, Czech Republic.
Abstract:
Stenotrophomonas maltophilia (Sm) plays an important role as an opportunistic pathogen in immunocompromised individuals. The growing detection rates of this bacterium in hospitalized patients are associated with the invasiveness of therapeutic and diagnostic procedures and the selection pressure of antibiotic therapy. A broad range of infections that can be caused by Sm is frequently bound to biofilm. The high level of intrinsic resistance to many unrelated antibiotics and increasing acquired resistance to the drug of choice, trimethoprim-sulfamethoxazole pose a threat for the near future when our treatment options may become depleted. Prevention of colonization and infection consists in consequent implementation of the rules governing nosocomial infection control, rational use of antibiotics including the optimization of selection and testing of antimicrobial agents suitable for the treatment of stenotrophomonad infections.
Insights
Stenotrophomonas maltophilia is an opportunistic pathogen causing infections in hospitalized patients. Its increasing antibiotic resistance, especially to trimethoprim-sulfamethoxazole, limits treatment options, necessitating improved infection control and antimicrobial strategies.
Area of Science:
- Medical Microbiology
- Infectious Diseases
- Antimicrobial Resistance
Background:
- Stenotrophomonas maltophilia (Sm) is an opportunistic pathogen frequently identified in hospital settings.
- Its prevalence is linked to invasive medical procedures and antibiotic use.
- Sm infections are often associated with biofilms, complicating treatment.
Purpose of the Study:
- To highlight the clinical significance of Stenotrophomonas maltophilia as an opportunistic pathogen.
- To underscore the challenges posed by its intrinsic and acquired antibiotic resistance.
- To emphasize the need for enhanced infection control and rational antimicrobial strategies.
Main Methods:
- Literature review on Stenotrophomonas maltophilia epidemiology and resistance patterns.
- Analysis of clinical implications of Sm infections, particularly in immunocompromised patients.
- Discussion of current and future treatment challenges and preventive measures.
Main Results:
- Stenotrophomonas maltophilia is a growing concern in healthcare-associated infections.
- High levels of intrinsic and acquired antibiotic resistance, including to trimethoprim-sulfamethoxazole, are evident.
- Biofilm formation is a key factor in Sm pathogenicity and treatment resistance.
Conclusions:
- Effective nosocomial infection control and judicious antibiotic use are crucial.
- Development of novel antimicrobial agents and treatment strategies is necessary.
- Optimized selection and testing of antimicrobials are vital for managing Sm infections.
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