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Computerized antibiogram for methicillin-resistant Staphylococcus aureus in chest surgery.

J Yoshida1, H Kondo, M Akao

  • 1Division of Chest Surgery, Shimonoseki City Hospital, Japan.

The Japanese Journal of Thoracic and Cardiovascular Surgery : Official Publication of the Japanese Association for Thoracic Surgery = Nihon Kyobu Geka Gakkai Zasshi
|September 25, 1999
PubMed
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Computerized cluster analysis of methicillin-resistant Staphylococcus aureus strains can help prevent outbreaks in thoracic surgery. This method aids in identifying patient migration patterns and reducing postoperative morbidity.

Area of Science:

  • Infectious Disease Epidemiology
  • Medical Microbiology
  • Computational Biology

Background:

  • Rising cases of methicillin-resistant Staphylococcus aureus (MRSA) postoperative morbidity in thoracic surgery.
  • Need for effective outbreak prevention strategies in surgical settings.

Purpose of the Study:

  • To investigate the utility of personal computer-based cluster analysis for MRSA outbreak prevention in thoracic surgery.
  • To identify transmission patterns of MRSA in a hospital setting.

Main Methods:

  • Cluster analysis of MRSA isolates from 120 thoracic surgery patients.
  • Utilized antimicrobial susceptibility data for 12 drugs.
  • Categorical valuation and Euclidean distance for similarity clustering.

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Main Results:

  • Six patients (5%) were positive for MRSA pre- or post-operation.
  • Two patients (1.7%) developed symptomatic MRSA infection postoperatively.
  • Analysis indicated preoperative MRSA patients shared strains within the same non-surgical ward.

Conclusions:

  • Computerized antibiograms offer a cost-effective and efficient method for MRSA strain typing.
  • Patient migration across wards likely contributed to MRSA strain dissemination.
  • This approach can aid in preventing MRSA outbreaks in chest surgery.