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KMID : 0648620140190020037
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Korean Journal of Nosocomial Infection Control
2014 Volume.19 No. 2 p.37 ~ p.44
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The Rate of Nasal Colonization of Methicillin-resistant Staphylococcus aureus at Admission to Intensive Care Units in a Secondary Hospital: The Importance of Nasogastric Tube
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Lee Eun-Seo
Yang Hae-Jin
Wi Yu-Mi
Jin Su-Jin
Seo Kyung-Hwa
Kim Jeong-Hyun
Kwon Yun-Jae
Kim Jin-Dong
Kim You-Suk
Lee You-Jung
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Abstract
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Background: Methicillin-resistant Staphylococcus aureus (MRSA) nasal colonization has been known as a predictor of intensive care unit (ICU)-acquired MRSA infections. We performed this study to survey the nasal colonization of MRSA among the patients admitted to an ICU and analyze risk factors associated with the colonization.
Methods: A retrospective 1：1 matched case-control study was conducted with patients admitted to the ICU from March to December 2010 at Samsung Changwon Hospital.
Results: A total of 602 patients among 846 patients admitted to the ICU during the study period were evaluated. The prevalence of nasal MRSA colonization was 67 (11.1%) of 602. Other factors, including underlying renal disease (odds ratio [OR]=12.37, 95% confidence interval [CI] 3.60-42.54; P<0.001), MRSA infection within the previous 3 months (OR=7.43, 95% CI 1.31-42.05; P=0.023), nursing home resident within the previous 1 month (OR=6.25, 95% CI 1.82-21.53; P=0.004), surgical procedure within the previous 1 month (OR=5.93, 95% CI 1.86-18.85; P=0.003), and current use of nasogastric tube (OR=4.98, 95% CI 1.84-13.45; P=0.002) were independently associated with nasal MRSA colonization in patients admitted to ICU.
Conclusion: A significant number of patients admitted to the ICU in a secondary hospital were colonized with MRSA. The present study showed the possible impact of the presence of a nasogastric tube on the nasal colonization by MRSA. More effective infection control procedures must be developed for patients with nasogastric tube use.
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KEYWORD
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ICU, MRSA, Nasal colonization, Nasogastric tube
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