Pseudomonas oryzihabitans: an unusual cause of skin and soft tissue infection

Area of Science:

• Microbiology
• Infectious Diseases
• Dermatology

Background:

• Skin and soft tissue infections (SSTIs) are common, but those caused by Pseudomonas oryzihabitans are exceptionally rare.
• Understanding the clinical and microbiological profiles of rare pathogens is crucial for effective patient management.

Purpose of the Study:

• To investigate the clinical and microbiological characteristics of SSTIs caused by Pseudomonas oryzihabitans.
• To identify predisposing factors and potential sources of infection.
• To assess treatment outcomes and antibiotic susceptibility patterns.

Main Methods:

• A retrospective review of six local cases and six previously reported cases of P. oryzihabitans SSTIs.
• Analysis of patient demographics, clinical presentation, predisposing factors, and treatment regimens.
• Microbiological characterization and antibiotic susceptibility testing.

Main Results:

• Predisposing factors were identified in 76.9% of patients, including surgery, immunosuppression, diabetes, trauma, bites, and lactation.
• The likely source of infection was environmental in most instances.
• P. oryzihabitans should be considered in surgical site infections, mastitis, and post-trauma/bite wound infections.

Conclusions:

• Pseudomonas oryzihabitans is an emerging pathogen that warrants consideration in specific SSTI contexts.
• Infections are often associated with identifiable predisposing conditions.
• Favorable clinical outcomes and low antibiotic resistance simplify treatment, suggesting P. oryzihabitans is a manageable pathogen.