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Related Experiment Videos

Catheter-related Staphylococcus aureus infections

A M Knudsen1, V T Rosdahl, F Espersen

  • 1Staphylococcus Laboratory, Statens Seruminstitut, Denmark.

The Journal of Hospital Infection
|February 1, 1993
PubMed
Summary

Intravenous catheters may promote specific Staphylococcus aureus strains, leading to catheter-related infections. However, these infections showed lower mortality and endocarditis rates compared to other Staphylococcus aureus bacteraemia cases.

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Area of Science:

  • Clinical Microbiology
  • Infectious Diseases
  • Epidemiology

Background:

  • Staphylococcus aureus bacteraemia is a significant clinical concern.
  • Intravenous catheters are common sources of healthcare-associated infections.
  • Understanding the specific strains involved in catheter-related bacteraemia is crucial for infection control.

Purpose of the Study:

  • To investigate the phage types of Staphylococcus aureus in patients with bacteraemia.
  • To determine if specific phage types are associated with catheter-related bacteraemia.
  • To compare clinical outcomes and antibiotic resistance between catheter-related and other Staphylococcus aureus bacteraemia cases.

Main Methods:

  • Retrospective analysis of 3394 patients with Staphylococcus aureus bacteraemia (1986-1989).

Related Experiment Videos

  • Phage typing of Staphylococcus aureus isolates from blood and intravenous catheters.
  • Comparison of epidemiological data, clinical outcomes, and antibiotic resistance patterns.

    • Main Results:

    • 88 patients had matching phage types in blood and catheter isolates, confirming catheter-related bacteraemia.
    • Phage type 95 and specific increasing frequency phage types in Denmark were significantly more common in catheter-related bacteraemia.
    • Catheter-related bacteraemia patients exhibited lower mortality and less frequent endocarditis despite more underlying diseases.

    Conclusions:

    • Certain Staphylococcus aureus phage types are disproportionately associated with catheter-related bacteraemia.
    • Intravenous catheters may exert selection pressure favoring specific Staphylococcus aureus strains.
    • Catheter-related Staphylococcus aureus bacteraemia has a better prognosis than other forms.