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Published on: July 11, 2016
Stenotrophomonas maltophilia: the significance and role as a nosocomial pathogen
1Department of Infectious Diseases and Clinical Microbiology, Faculty of Medicine, Gazi University, Besevler, Ankara, Turkey. esins@gazi.edu.tr
Abstract:
Stenotrophomonas maltophilia is a significant pathogen that primarily affects patients with co-morbid illnesses, usually malignancies, who have been hospitalized for prolonged periods and received broad-spectrum antibiotic therapy. The organism has been associated with an expanding spectrum of clinical manifestations associated with high case to fatality ratios. Therapy of these infections presents a significant challenge both for the clinician and the microbiologists because of its high-level antibiotic resistance to most of the currently used agents and methodological difficulties in susceptibility testing with this organism.
Insights
Stenotrophomonas maltophilia is a challenging pathogen, often affecting hospitalized patients with serious illnesses. Its high antibiotic resistance makes treating infections difficult and requires specialized susceptibility testing.
Area of Science:
- Medical Microbiology
- Infectious Diseases
- Clinical Pathology
Background:
- Stenotrophomonas maltophilia is an opportunistic pathogen.
- It primarily impacts immunocompromised patients, especially those with malignancies.
- Prolonged hospitalization and broad-spectrum antibiotic use are key risk factors.
Purpose of the Study:
- To highlight the clinical significance of Stenotrophomonas maltophilia infections.
- To emphasize the challenges in treating these infections due to antibiotic resistance.
- To address the difficulties in antimicrobial susceptibility testing for this organism.
Main Methods:
- Review of clinical cases and microbiological data.
- Analysis of antibiotic resistance patterns.
- Evaluation of diagnostic challenges in susceptibility testing.
Main Results:
- Stenotrophomonas maltophilia is linked to diverse clinical presentations.
- High case-to-fatality ratios are associated with these infections.
- Significant resistance to common antibiotics complicates treatment.
Conclusions:
- Stenotrophomonas maltophilia poses a substantial threat to vulnerable patient populations.
- Effective therapeutic strategies are hampered by intrinsic antibiotic resistance.
- Standardized and accurate susceptibility testing methods are crucial for guiding treatment.
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