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A Delayed Inoculation Model of Chronic Pseudomonas aeruginosa Wound Infection
Published on: February 20, 2020
Skin manifestations of Pseudomonas aeruginosa infections
Nikolaos Spernovasilis1, Mina Psichogiou2, Garyfallia Poulakou3
1School of Medicine, University of Crete, Heraklion.
Purpose Of Review:
Pseudomonas aeruginosa is an opportunistic pathogen with considerable morbidity and mortality, particularly in vulnerable hosts. Skin manifestations are common, either representing local inoculation or secondary skin seeding following bloodstream infections. As patients with various predisposing conditions are expanding, we sought to review the most recent published evidence regarding epidemiology, risk factors and diagnosis of skin manifestations of P. aeruginosa.
Recent Findings:
New data exist on epidemiology and diagnosis of skin infections; systemic infections are impacted by multidrug-resistance issues and host immune status.
Summary:
Green nail syndrome, toe web infection, hot tub folliculitis, hot hand-foot infection and external otitis are the most common infections originating from the skin per se. Local treatments are the cornerstone and prognosis is favorable in immunocompetent hosts. Ecthyma gangrenosum and P. aeruginosa subcutaneous nodules are usually associated with bloodstream infections and occur primarily in immunocompromised hosts. Necrotizing skin and soft tissue infections occur in diabetic, alcoholic and immunocompromised patients; management requires a multidisciplinary team with surgical approach. Burn wound infections may also be challenging, requiring a specialized team. In all the four latter types of P. aeruginosa skin infections portending significant morbidity and mortality, systemic antibiotics are an integral part of the treatment.
Insights
Pseudomonas aeruginosa skin infections range from common, localized issues to severe, systemic conditions. Early diagnosis and appropriate treatment, including antibiotics for severe cases, are crucial for patient outcomes.
Area of Science:
- Dermatology
- Infectious Diseases
- Microbiology
Background:
- Pseudomonas aeruginosa is an opportunistic pathogen causing significant illness and death, especially in vulnerable individuals.
- Skin manifestations of P. aeruginosa infections are frequent, arising from local inoculation or systemic spread.
- The increasing number of patients with predisposing conditions necessitates a review of P. aeruginosa skin infections.
Purpose of the Study:
- To review recent evidence on the epidemiology, risk factors, and diagnosis of Pseudomonas aeruginosa skin manifestations.
- To consolidate current knowledge on the diverse clinical presentations and management strategies for P. aeruginosa skin infections.
Main Methods:
- Systematic review of recent published literature.
- Analysis of epidemiological data, risk factors, and diagnostic approaches.
- Synthesis of findings on various P. aeruginosa skin infection types and their management.
Main Results:
- Common P. aeruginosa skin infections include green nail syndrome, toe web infection, hot tub folliculitis, hot hand-foot infection, and external otitis, typically responding to local treatment in immunocompetent hosts.
- Severe manifestations like ecthyma gangrenosum, subcutaneous nodules, necrotizing skin/soft tissue infections, and burn wound infections are linked to bloodstream infections and occur primarily in immunocompromised or comorbid patients.
- Multidrug resistance and host immune status significantly impact systemic P. aeruginosa infections.
Conclusions:
- Management of P. aeruginosa skin infections varies based on clinical presentation and host factors, ranging from local therapies to multidisciplinary approaches with systemic antibiotics for severe cases.
- Prompt diagnosis and tailored treatment are essential for improving prognosis, particularly in high-risk patient populations.
- Further research into P. aeruginosa epidemiology and effective treatment strategies remains critical.
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