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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA
12:18

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA

Published on: February 9, 2011

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Shedding of methicillin-resistant Staphylococcus aureus by colonized patients during procedures and patient care

Heba Alhmidi1, Jennifer L Cadnum1, Sreelatha Koganti1

  • 1Research Service, Louis Stokes Veterans Affairs Medical Center,Cleveland, Ohio.

Infection Control and Hospital Epidemiology
|February 20, 2019
PubMed
Abstract

Insights

Healthcare procedures can spread methicillin-resistant Staphylococcus aureus (MRSA). Environmental shedding of MRSA is common during patient care, especially from wounds, highlighting the need for better disinfection strategies.

Area of Science:

  • Infectious Diseases
  • Healthcare Epidemiology
  • Microbiology

Background:

  • Healthcare-associated pathogens, such as methicillin-resistant Staphylococcus aureus (MRSA), can spread through environmental contamination during medical procedures.
  • Understanding the dynamics of MRSA environmental dissemination is crucial for infection control in healthcare settings.

Purpose of the Study:

  • To determine the frequency of environmental shedding of MRSA by colonized patients during medical procedures and care activities.
  • To identify risk factors associated with MRSA environmental shedding in a healthcare environment.

Main Methods:

  • An observational cohort study was conducted with 75 patients under contact precautions for MRSA.
  • Environmental samples were collected during and after procedures and care activities.
  • Bivariate analyses were used to identify factors associated with MRSA shedding.

Main Results:

  • Environmental shedding of MRSA occurred in 43% of observed procedures, significantly more than during non-procedural care (10%).
  • MRSA was frequently detected on surfaces near the patient (38%) and on portable equipment (25%).
  • The presence of an MRSA-positive wound was significantly associated with environmental shedding (59% vs. 26%).

Conclusions:

  • Environmental shedding of MRSA is a frequent occurrence during routine medical procedures and patient care.
  • Effective strategies for disinfecting surfaces and equipment after patient interactions are necessary to mitigate MRSA transmission.

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