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Related Experiment Videos

Methicillin-resistant Staphylococcus aureus colonization in a long-term-care facility.

S Murphy1, S Denman, R G Bennett

  • 1Division of Geriatric Medicine and Gerontology, Johns Hopkins University School of Medicine, Baltimore, Maryland.

Journal of the American Geriatrics Society
|March 1, 1992
PubMed
Summary

Methicillin-resistant Staphylococcus aureus (MRSA) colonization is common in nursing home residents, especially those with prior MRSA infections or pressure sores. Targeted surveillance cultures can help identify colonized patients upon admission.

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Area of Science:

  • Infectious Diseases
  • Healthcare Epidemiology
  • Long-Term Care

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) poses a significant challenge in healthcare settings, particularly in long-term care facilities (LTCFs).
  • Understanding the prevalence and risk factors for MRSA colonization is crucial for infection control within these vulnerable populations.

Purpose of the Study:

  • To determine the prevalence of MRSA colonization among residents in a long-term-care facility.
  • To identify key risk factors associated with MRSA colonization in this population.

Main Methods:

  • A cross-sectional surveillance culture survey was conducted over a 4-month period.
  • Cultures were obtained from patients on two nursing units and new admissions to the facility.
  • Data on patient demographics, diagnoses, and prior medical history were collected.

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Main Results:

  • MRSA colonization was prevalent, particularly on the chronic medical unit (52.6%) and among new admissions (43.6%).
  • Independent predictors of colonization included prior MRSA-positive culture, male sex, urinary incontinence, and presence of pressure sores.
  • Significant differences in colonization rates were observed between units and among admissions.

Conclusions:

  • Unrecognized MRSA colonization is common in nursing home residents, highlighting LTCFs as reservoirs for MRSA.
  • Targeted surveillance cultures of debilitated patients upon admission can aid in identifying colonized individuals.
  • Implementing infection control measures like handwashing and gloving is essential to limit MRSA spread within LTCFs.