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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA
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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA

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Neonatal methicillin-resistant Staphylococcus aureus colonization and infection

Yoko Shirai1,2, Hiroko Arai1, Kazutomo Tamaki1

  • 1Department of Neonatology, Toho University Omori Hospital, Ota-ku, Tokyo, Japan.

Journal of Neonatal-Perinatal Medicine
|December 30, 2017
PubMed
Abstract

Insights

Methicillin-resistant Staphylococcus aureus (MRSA) is a threat in NICUs. Neonates with longer stays, lower birth weights, central lines, or digestive issues face higher MRSA infection risks.

Area of Science:

  • Neonatal Intensive Care Unit (NICU) Infections
  • Infectious Disease Epidemiology
  • Bacterial Pathogenesis

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) poses a significant threat in Neonatal Intensive Care Units (NICUs), causing life-threatening infections.
  • Neonates, particularly those with very low birth weight or serious illnesses, are at high risk for MRSA colonization and infection due to invasive procedures.
  • Preventing MRSA transmission is crucial in NICUs, where standard contact precautions and active surveillance cultures (ASC) are employed.

Purpose of the Study:

  • To analyze the clinical characteristics of MRSA colonization and infection in neonates.
  • To identify risk factors associated with MRSA colonization and infection in a Japanese perinatal care center.

Main Methods:

  • Retrospective analysis of 1716 neonates hospitalized between January 2010 and December 2015.
  • Comparison of clinical characteristics between MRSA-colonized and non-colonized neonates.
  • Analysis of factors differentiating MRSA-colonized non-infected from MRSA-infected neonates.

Main Results:

  • MRSA colonization was observed in 6.99% (120/1716) of neonates, with 33 developing MRSA infection.
  • Statistically significant differences were found in duration of stay and birth weight between colonized and non-colonized neonates.
  • Central venous catheterization and digestive system diseases were significantly associated with MRSA infection in colonized neonates.

Conclusions:

  • Neonates undergoing central venous catheterization are at increased risk of MRSA infection, consistent with previous findings.
  • Digestive system diseases in neonates warrant close attention due to a potential association with MRSA infection.
  • Targeted surveillance and preventive strategies are essential for high-risk neonates in the NICU setting.
Keywords:
MRSANICUcolonizationinfection

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