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Coagulase-negative staphylococci: role as pathogens.

J Huebner¹, D A Goldmann

¹Dept. of Infectious Diseases, Children's Hospital, Boston, Massachusetts, USA. jhuebner@channing.harvard.edu

Annual Review of Medicine

|March 12, 1999

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Coagulase-negative staphylococci are increasingly recognized as significant pathogens, particularly in hospital-acquired infections linked to medical devices. Their resistance to antibiotics necessitates intravenous treatment for systemic infections.

Area of Science:

Microbiology
Infectious Diseases
Medical Device Infections

Background:

Coagulase-negative staphylococci (CoNS) were historically considered non-pathogenic.
Recent research highlights their significant role as opportunistic pathogens.
Increasing incidence of CoNS infections is a growing clinical concern.

Purpose of the Study:

To review the evolving understanding of CoNS as pathogens.
To discuss the mechanisms of CoNS virulence, particularly in device-related infections.
To outline the clinical significance and treatment challenges of CoNS infections.

Main Methods:

Literature review of recent studies on CoNS pathogenicity.
Analysis of virulence factors, focusing on bacterial components like polysaccharides.

Related Experiment Videos

Examination of epidemiological data on hospital-acquired CoNS infections.

Review of antibiotic resistance patterns and treatment strategies.

Main Results:

CoNS are the primary cause of bacteremia associated with indwelling medical devices.
Hospital-acquired strains, often transmitted among patients, are a major concern.
Polysaccharide components likely contribute to bacterial adhesion and persistence on foreign materials.
CoNS are implicated in serious infections such as CNS shunt infections, endocarditis, UTIs, and endophthalmitis.

Conclusions:

CoNS are significant pathogens, especially in healthcare settings.
Bacterial polysaccharide components play a role in CoNS pathogenesis.
Effective management requires addressing antibiotic resistance and transmission routes.
Intravenous antibiotic therapy is often necessary for systemic CoNS infections due to widespread resistance.