Coagulase-Negative Staphylococci in Neonatal Blood: How Concerning?
Abstract: Objective Coagulase-negative staphylococci (CoNS) are being implicated as one of the leading causes of bloodstream infection (BSI). To study the spectrum, prevalence, and antimicrobial susceptibility of CoNS causing BSI in neonates. Materials and Methods A cross-sectional study was done in level III neonatal intensive care unit (NICU). Blood samples in automated culture bottles were processed as per the standard technique. Previously validated methods were followed for the characterization of CoNS and for AST of standard antibiotics by Kirby Bauer disk diffusion and vancomycin by agar dilution. The prevalence of causative organisms and susceptibility of CoNS were statistically analyzed. Categorical variables were compared by chi-square or Fisher's exact probability tests. Result In total, 1,365 blood samples (1,365 neonates) were studied, of which 383 (28.05%) were positive and 982 (71.94%) were negative. Gram-positive organisms (GPC) predominated (n = 238; 62.14%) (p < 0.001) with 41.77% (160/383) S. aureus and 13.83% (53/383) CoNS. CoNS included S. epidermidis (19, 38%), S. haemolyticus (7, 14%), S. hominis (6, 12%), S. simulans (6,12%), S. capitis (5,10%), S. cohnii (4, 8%), S. warneri (1, 2%), and S. xylosus (1, 2%). The susceptibility to netilmicin, linezolid, and vancomycin was 100% (p ≤ 0.001), and 54% (n = 27) had vancomycin MIC of 0.125 μg/mL but methicillin-resistant CoNS (MRCoNS) was 70%. Methicillin-susceptible (MS) CoNS had lower MIC of vancomycin (p < 0.05) than MRCoNS. Conclusion The spectrum of pathogens causing BSI in neonates is changing with predominance of GPC and among CoNS, S. epidermidis. Considerable proportion of MRCoNS with the emergence of MIC creep for vancomycin requires immediate attention.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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Coagulase-Negative Staphylococci in Neonatal Blood: How Concerning? ; day:30 ; month:01 ; year:2023
Journal of laboratory physicians ; (30.01.2023)
- Contributor
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Ansari, Farheen
Banerjee, Tuhina
Kumar, Ashok
Anupurba, Shampa
- DOI
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10.1055/s-0042-1757411
- URN
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urn:nbn:de:101:1-2023031611130904491962
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:53 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Ansari, Farheen
- Banerjee, Tuhina
- Kumar, Ashok
- Anupurba, Shampa
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