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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA
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Nasal methicillin-resistant S. aureus is a major risk for mediastinitis in pediatric cardiac surgery

Tomoyuki Katayanagi1

  • 1Division of Cardiovascular Surgery, Department of Surgery, School of Medicine, Faculty of Medicine, Toho University, Tokyo, Japan.

Annals of Thoracic and Cardiovascular Surgery : Official Journal of the Association of Thoracic and Cardiovascular Surgeons of Asia
|February 3, 2015
PubMed
Abstract

Insights

Implementing surgical site infection (SSI) prevention measures significantly reduced mediastinitis and SSIs in pediatric cardiac surgery patients. Preoperative methicillin-resistant Staphylococcus aureus (MRSA) colonization is a key risk factor.

Area of Science:

  • Cardiology
  • Infectious Disease
  • Pediatric Surgery

Background:

  • Methicillin-resistant Staphylococcus aureus (MRSA) causes serious mediastinitis after pediatric cardiac surgery.
  • An outbreak of surgical site infections (SSIs) prompted the implementation of new prevention strategies.

Purpose of the Study:

  • To evaluate the effectiveness of SSI prevention measures in reducing mediastinitis and SSIs.
  • To identify risk factors associated with mediastinitis in pediatric cardiac surgery patients.

Main Methods:

  • Compared SSI and mediastinitis incidence in 174 pediatric patients before and after SSI measures.
  • Preoperative nasal cultures were used for screening.
  • Investigated preoperative, intraoperative, and postoperative factors influencing mediastinitis.

Main Results:

  • SSI prevention measures significantly decreased both SSI and mediastinitis rates.
  • Preoperative MRSA colonization was a significant risk factor for MRSA mediastinitis.
  • Other significant factors included duration of preoperative hospitalization, Aristotle score, operation time, bypass circuit volume, lowest rectal temperature, and blood transfusion volume.

Conclusions:

  • SSI prevention measures are effective in reducing SSIs and mediastinitis post-pediatric cardiac surgery.
  • Preoperative MRSA colonization is a critical risk factor for mediastinitis and warrants targeted interventions.

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