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Empyema Caused by Pseudomonas luteola: A Case Report
Farid Yousefi1, Saeed Shoja2, Negin Honarvar1
1Department of Infectious and Tropical Diseases, Razi Hospital, Faculty of Medicine, Jundishapur University of Medical Sciences, Ahvaz, IR Iran ; Health Research Institute, Infectious and Tropical Disease Research Center, Jundishapur University of Medical Sciences, Ahvaz, IR Iran.
Pseudomonas luteola is an opportunistic pathogen causing healthcare-associated infections. This case study highlights a rare instance of P. luteola susceptibility to trimethoprim-sulfamethoxazole (TMP-SMX), contrary to typical resistance patterns.
Area of Science:
- Medical microbiology
- Infectious diseases
- Clinical diagnostics
Background:
- Pseudomonas luteola is an opportunistic pathogen, infrequently implicated in human infections.
- Healthcare-associated infections are a known risk with P. luteola.
- This bacterium is typically resistant to trimethoprim-sulfamethoxazole (TMP-SMX).
Observation:
- P. luteola was isolated from a patient diagnosed with empyema and tuberculous pleurisy.
- Antimicrobial susceptibility testing was performed on the isolated P. luteola strain.
- The patient's P. luteola isolate demonstrated unexpected susceptibility to TMP-SMX.
Findings:
- The P. luteola isolate exhibited susceptibility to TMP-SMX, contradicting established resistance profiles.
- This finding challenges the conventional understanding of P. luteola's antimicrobial resistance.
- The susceptibility pattern in this case warrants further investigation.
Implications:
- Clinical management of P. luteola infections may require individualized susceptibility testing.
- The study suggests potential variability in P. luteola's resistance mechanisms.
- Further research is needed to understand the factors influencing TMP-SMX susceptibility in P. luteola.
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