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Related Experiment Videos

Much ado about nothing: methicillin-resistant Staphylococcus aureus

T Shannon1, P Edgar, C Villarreal

  • 1Department of Surgery, University of Texas Medical Branch, Galveston, USA.

The Journal of Burn Care & Rehabilitation
|July 1, 1997
PubMed
Summary
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Methicillin-resistant Staphylococcus aureus (MRSA) and MRSE infections have lower morbidity and mortality rates than gram-negative infections. Gram-negative infections incur higher treatment costs and longer hospital stays, challenging the focus on MRSA/MRSE.

Area of Science:

  • Infectious Diseases
  • Clinical Microbiology
  • Health Economics

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) and Methicillin-resistant Staphylococcus epidermidis (MRSE) are significant pathogens.
  • Gram-negative bacteria also contribute substantially to hospital-acquired infections.
  • Concerns regarding MRSA/MRSE morbidity, mortality, and treatment costs are widespread.

Purpose of the Study:

  • To compare morbidity, mortality, and cost factors of MRSA/MRSE infections versus gram-negative infections.
  • To evaluate the economic and clinical impact of these prevalent pathogens over a four-year period.

Main Methods:

  • Retrospective analysis of over 214 documented infections.
  • Comparison of morbidity and mortality rates between MRSA/MRSE and gram-negative infections.

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  • Assessment of treatment costs and hospital stay duration for different infection types.

    • Main Results:

    • MRSA/MRSE infections demonstrated minor morbidity and mortality rates.
    • Gram-negative infections, particularly Pseudomonas aeruginosa and Escherichia coli, often required dual antimicrobial therapy, increasing costs and morbidity.
    • Gram-negative infections led to 10-15 additional hospital days and higher daily antibiotic expenses ($293.40).
    • MRSA/MRSE infections were 28% less costly to treat compared to gram-negative infections.

    Conclusions:

    • The clinical and economic burden of gram-negative infections is significantly higher than that of MRSA/MRSE infections.
    • Current focus on MRSA/MRSE may be disproportionate given the comparative impact of gram-negative pathogens.
    • Resource allocation and treatment strategies should consider the substantial burden of gram-negative infections.