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Postoperative infant septicemia caused by Pseudomonas luteola (CDC group Ve-1) and Pseudomonas oryzihabitans (CDC
Journal of Clinical Microbiology
|June 1, 1988
Insights
Two rare Pseudomonas species, Pseudomonas luteola and Pseudomonas oryzihabitans, were identified in an infant
Area of Science:
- Medical microbiology
- Clinical diagnostics
- Bacterial identification
Background:
- Post-cardiac surgery infections can be polymicrobial.
- Rarely pathogenic bacteria can cause opportunistic infections.
Observation:
- Pseudomonas luteola and Pseudomonas oryzihabitans were co-isolated from a single infant blood culture.
- The infant underwent open-heart surgery 8 days prior.
Findings:
- Carbon substrate assimilation and fatty acid analysis effectively differentiated these two closely related Pseudomonas species.
- The infant showed a positive clinical response to antibiotic therapy.
Implications:
- Accurate identification of rare bacterial pathogens is crucial for effective treatment.
- Standard microbiological techniques can distinguish between similar organisms.
- This case highlights the importance of comprehensive diagnostics in immunocompromised patients.
Abstract:
Pseudomonas luteola (CDC group Ve-1) and Pseudomonas oryzihabitans (CDC group Ve-2) were both isolated from the same blood culture of a 5-month-old infant, 8 days after open-heart surgery. He quickly responded to appropriate antibiotics. Carbon substrate assimilation tests and fatty acid analysis clearly differentiated these two rarely pathogenic organisms.