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Methicillin-resistant Staphylococcus aureus (MRSA) presents a critical public health threat, arising from its capacity to resist β-lactam antibiotics due to acquisition of the mecA gene within the staphylococcal cassette chromosome mec (SCCmec). This gene encodes penicillin-binding protein 2a (PBP2a), which impairs binding efficacy of methicillin and other β-lactams. MRSA has evolved into distinct clonal lineages impacting humans and animals alike, reinforcing its significance within the One...
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Methodology for the Study of Horizontal Gene Transfer in Staphylococcus aureus
10:39

Methodology for the Study of Horizontal Gene Transfer in Staphylococcus aureus

Published on: March 10, 2017

Current practice in Staphylococcus aureus screening and decolonization.

Daniel Diekema1, Birgir Johannsson, Loreen Herwaldt

  • 1Division of Infectious Diseases, Department of Internal Medicine, Carver College of Medicine, University of Iowa, Iowa City, Iowa, USA. daniel-diekema@uiowa.edu

Infection Control and Hospital Epidemiology
|September 21, 2011
PubMed
Summary
This summary is machine-generated.

Infectious disease physicians commonly screen patients for Staphylococcus aureus before surgery. However, current screening and decolonization practices for this pathogen are inconsistent and lack resistance testing.

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Area of Science:

  • Infectious Diseases
  • Clinical Microbiology
  • Surgical Infection Prevention

Background:

  • Staphylococcus aureus is a significant cause of surgical site infections.
  • Preoperative screening and decolonization aim to reduce the risk of S. aureus transmission.
  • Methicillin-resistant Staphylococcus aureus (MRSA) is a primary concern in healthcare settings.

Purpose of the Study:

  • To investigate the current preoperative screening practices for Staphylococcus aureus among infectious disease physicians.
  • To understand the decolonization strategies employed for S. aureus carriers.
  • To identify variability and potential gaps in current S. aureus management protocols.

Main Methods:

  • A survey was distributed to infectious disease physicians.
  • The survey assessed screening methods, decolonization agents, and resistance testing.
  • Data on physician practices regarding S. aureus preoperative management were collected and analyzed.

Main Results:

  • Sixty percent of surveyed physicians reported performing preoperative S. aureus screening.
  • Practices for screening and decolonization demonstrated significant variability.
  • Screening predominantly focused on MRSA, with limited testing for mupirocin or chlorhexidine resistance.

Conclusions:

  • Preoperative S. aureus screening is utilized by a majority of infectious disease physicians.
  • Current practices exhibit considerable heterogeneity and a narrow focus on MRSA.
  • The absence of routine resistance testing for common decolonization agents may impact treatment efficacy.