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Stenotrophomonas maltophilia: emerging disease patterns and challenges for treatment
Iain J Abbott1, Monica A Slavin, John D Turnidge
1Department of Infectious Diseases, Peter MacCallum Cancer Centre, East Melbourne, Victoria, Australia. iainabbott@gmail.com
Abstract:
Stenotrophomonas maltophilia is a ubiquitous organism associated with opportunistic infections. In the immunocompromised host, increasing prevalence and severity of illness is observed, particularly opportunistic bloodstream infections and pneumonia syndromes. In this article, the classification and microbiology are outlined, together with clinical presentation, outcomes and management of infections due to S. maltophilia. Although virulence mechanisms and the genetic basis of antibiotic resistance have been identified, a role for standardized and uniform reporting of antibiotic sensitivity is not defined. Infections due to S. maltophilia have traditionally been treated with trimethoprim-sulfamethoxazole, ticarcillin-clavulanic acid, or fluoroquinolone agents. The use of combination therapies, newer fluoroquinolone agents and tetracycline derivatives is discussed. Finally, measures to prevent transmission of S. maltophilia within healthcare facilities are reported, especially in at-risk patient populations.
Insights
Stenotrophomonas maltophilia causes opportunistic infections, especially in immunocompromised individuals. This review covers its classification, clinical aspects, and management, including antibiotic resistance and prevention strategies.
Area of Science:
- Microbiology
- Infectious Diseases
- Clinical Medicine
Background:
- Stenotrophomonas maltophilia is a ubiquitous bacterium causing opportunistic infections.
- It poses a significant threat to immunocompromised patients, leading to severe illnesses like bloodstream infections and pneumonia.
Purpose of the Study:
- To provide a comprehensive overview of Stenotrophomonas maltophilia.
- To discuss its classification, microbiology, clinical presentation, outcomes, and management.
- To explore antibiotic resistance, treatment options, and prevention strategies.
Main Methods:
- Literature review of classification and microbiology.
- Analysis of clinical presentation and outcomes.
- Discussion of management strategies, including antibiotic therapies and infection control.
Main Results:
- Identified virulence mechanisms and genetic basis of antibiotic resistance.
- Highlighted the lack of standardized antibiotic sensitivity reporting.
- Reviewed traditional and newer treatment options, including combination therapies.
Conclusions:
- Stenotrophomonas maltophilia infections require careful management in at-risk populations.
- Further research is needed on standardized antibiotic sensitivity reporting.
- Effective infection control measures are crucial in healthcare facilities to prevent transmission.
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