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Neonatal Med > Volume 18(2); 2011 > Article
Journal of the Korean Society of Neonatology 2011;18(2):288-292.
DOI: https://doi.org/10.5385/jksn.2011.18.2.288    Published online November 25, 2011.
Risk Factors of Catheter-related Bloodstream Infection Due to Methicillin-resistant Staphylococcus aureus in Very Low Birth Weight Infants.
Il Hyun Cho, Tae Woong Jung, Ju young Lee, Se Na Moon, Joong Hyun Bin, Hyun Seung Lee, Jung Hyun Lee, So Young Kim, In Kyung Sung
Department of Pediatrics, College of Medicine, The Catholic University of Korea, Seoul, Korea. ljhped@catholic.ac.kr
The incidence of methicillin-resistant Staphylococcus aureus (MRSA) infection has increased in children and in neonates, and is particularly associated with frequent use of central venous catheter in very low birth weight (VLBW) infants. It is known that the morbidity and mortality of MRSA infection are low in neonates, as compared with adults. The objective of this study was to examine the difference in clinical characteristics between VLBW infants that survived and those that did not, a catheter-related bloodstream infection (CRBSI) of MRSA.
Thirty-four VLBW infants had laboratory-confirmed bloodstream infection with S. aureus. We examined the incidence, mortality and morbidity of CRBSI, and predictive factors associated with mortality.
Twenty-six infants had same pathogen (24 MRSA, 2 Methicillin-sensitive Staphylococcus aureus) in the blood and in the catheter tip. Eight infants (25.8%) died in the CRBSI and they all had MRSA blood infections. Sex ratio, gestational age, duration between blood collection and identification of pathogens, and WBC and platelet count were not significantly different between patients that died from and patients that survived CRBSI of MRSA. C-reactive protein (CRP) was significantly higher in VLBW infants that died. Mean age of onset and hospital day was earlier (9.1+/-6.6 vs. 26.9+/-20.2; P=0.005) and shorter for patients that died (10.1+/-7.0 vs. 73.0+/-32.4; P=0.000). Two survivors had complications of pyogenic arthritis of the lower extremities and soft tissue infection, respectively.
Mortality of CRBSI was likely to be high in VLBW infants and might be anticipated by CRP and early onset of disease.
Key Words: Methicillin-resistant Staphylococcus aureus; Bacteremia; Catheter; Very low birth weight infant


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