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Archivos de Pediatría del Uruguay

Print version ISSN 0004-0584On-line version ISSN 1688-1249

Abstract

BLENGIO, Andreina et al. Coagulase negative streptococci nosocomial infections at a neonatal intensive care unit. Arch. Pediatr. Urug. [online]. 2021, vol.92, n.2, e212.  Epub Dec 01, 2021. ISSN 0004-0584.  https://doi.org/10.31134/ap.92.2.10.

Introduction:

Coagulase Negative Staphylococci (CoNS) late onset sepsis is a common cause of morbidity and mortality in the neonatal intensive care unit (NICU). CoNS are the most frequently isolated microorganisms and total 50% of cases. The objective of this study is to analyze the incidence and characteristics of newborns carriers of late onset CoNS.

Materials and methods:

we performed a descriptive, retrospective, longitudinal study. Data was obtained from the hospital’s microbiology laboratory database and electronic medical records. Patients included were those admitted to NICU during the period between 2018 and 2019.

Results:

we obtained an incidence of 2.5% of patients admitted to the NICU (25 patients). Median gestational age at birth was 28 weeks 25.0-35.0 and median birth weight was 1.070 g 730.0-2365.0. Mean gestational age at the time of diagnosis was 32.92±7.921 weeks. 17 patients had received an antibiotics course at birth because of early onset sepsis suspicion. The most frequently observed clinical symptom was deterioration of general condition, 11 patients, followed by abdominal distention in 6 and fever in 5. Among CoNS, the most frequently isolated pathogen was Staphylococcus epidermidis (13 patients). 22 patients received treatment, 18 a combination of vancomycin and meropenem and 4 received vancomycin monotherapy.

Conclusion:

these pathogens are a common cause of morbidity and mortality in the newborn intensive care unit, particularly in patients with more serious conditions and in those who require more advanced life support measures. Clearer interpretation of their role is needed as well as to determine a proper approach to patients at risk of late onset sepsis, including empiric antibiotic treatment.

Keywords : Staphylococcus coagulase negative; Cross infection; Neonatal sepsis; Vancomycin; Incidence; Newborn; Premature.

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