Potential of Molecular Culture in Early Onset Neonatal Sepsis Diagnosis: A Proof of Principle Study

Delay in the time-to-positivity of a peripheral blood culture (PBC), the gold standard for early onset neonatal sepsis (EOS) diagnosis, has resulted in excessive use of antibiotics. In this study, we evaluate the potential of the rapid Molecular Culture (MC) assay for quick EOS diagnosis. In the fir...

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Main Authors: Thomas Dierikx, Andries Budding, Martine Bos, Henriëtte van Laerhoven, Sophie van der Schoor, Hendrik Niemarkt, Marc Benninga, Anton van Kaam, Douwe Visser, Tim de Meij
Format: Article
Language:English
Published: MDPI AG 2023-04-01
Series:Microorganisms
Subjects:
Online Access:https://www.mdpi.com/2076-2607/11/4/960
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author Thomas Dierikx
Andries Budding
Martine Bos
Henriëtte van Laerhoven
Sophie van der Schoor
Hendrik Niemarkt
Marc Benninga
Anton van Kaam
Douwe Visser
Tim de Meij
author_facet Thomas Dierikx
Andries Budding
Martine Bos
Henriëtte van Laerhoven
Sophie van der Schoor
Hendrik Niemarkt
Marc Benninga
Anton van Kaam
Douwe Visser
Tim de Meij
author_sort Thomas Dierikx
collection DOAJ
description Delay in the time-to-positivity of a peripheral blood culture (PBC), the gold standard for early onset neonatal sepsis (EOS) diagnosis, has resulted in excessive use of antibiotics. In this study, we evaluate the potential of the rapid Molecular Culture (MC) assay for quick EOS diagnosis. In the first part of this study, known positive and spiked blood samples were used to assess the performance of MC. In the in vivo clinical study, the second part of this study, all infants receiving antibiotics for suspicion of EOS were included. At initial EOS suspicion, a blood sample was collected for PBC and MC. MC was able to detect bacteria present in the spiked samples even when the bacterial load was low. In the clinical study, MC was positive in one infant with clinical EOS (<i>Enterococcus faecalis</i>) that was not detected by PBC. Additionally, MC was positive in two infants without clinical sepsis (<i>Streptococcus mitis</i> and multiple species), referred to as contamination. The other 37 samples were negative both by MC and PBC. MC seems to be able to detect bacteria even when the bacterial load is low. The majority of MC and PBC results were comparable and the risk for contamination and false positive MC results seems to be limited. Since MC can generate results within 4 h following sampling compared with 36–72 h in PBC, MC may have the potential to replace conventional PBC in EOS diagnostics in order to guide clinicians on when to discontinue antibiotic therapy several hours after birth.
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spelling doaj.art-12db16e2cf224180bc651fbbccfd85652023-11-17T20:32:59ZengMDPI AGMicroorganisms2076-26072023-04-0111496010.3390/microorganisms11040960Potential of Molecular Culture in Early Onset Neonatal Sepsis Diagnosis: A Proof of Principle StudyThomas Dierikx0Andries Budding1Martine Bos2Henriëtte van Laerhoven3Sophie van der Schoor4Hendrik Niemarkt5Marc Benninga6Anton van Kaam7Douwe Visser8Tim de Meij9Department of Pediatric Gastroenterology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The NetherlandsInbiome, 1098 XG Amsterdam, The NetherlandsInbiome, 1098 XG Amsterdam, The NetherlandsDepartment of Pediatrics and Neonatology, OLVG, 1061 AE Amsterdam, The NetherlandsDepartment of Pediatrics and Neonatology, OLVG, 1061 AE Amsterdam, The NetherlandsDepartment of Neonatology, Máxima Medisch Centrum, 5504 DB Veldhoven, The NetherlandsDepartment of Pediatric Gastroenterology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The NetherlandsDepartment of Neonatology, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The NetherlandsDepartment of Neonatology, Amsterdam UMC Location University of Amsterdam, Meibergdreef 9, 1105 AZ Amsterdam, The NetherlandsDepartment of Pediatric Gastroenterology, Amsterdam UMC Location University of Amsterdam, 1105 AZ Amsterdam, The NetherlandsDelay in the time-to-positivity of a peripheral blood culture (PBC), the gold standard for early onset neonatal sepsis (EOS) diagnosis, has resulted in excessive use of antibiotics. In this study, we evaluate the potential of the rapid Molecular Culture (MC) assay for quick EOS diagnosis. In the first part of this study, known positive and spiked blood samples were used to assess the performance of MC. In the in vivo clinical study, the second part of this study, all infants receiving antibiotics for suspicion of EOS were included. At initial EOS suspicion, a blood sample was collected for PBC and MC. MC was able to detect bacteria present in the spiked samples even when the bacterial load was low. In the clinical study, MC was positive in one infant with clinical EOS (<i>Enterococcus faecalis</i>) that was not detected by PBC. Additionally, MC was positive in two infants without clinical sepsis (<i>Streptococcus mitis</i> and multiple species), referred to as contamination. The other 37 samples were negative both by MC and PBC. MC seems to be able to detect bacteria even when the bacterial load is low. The majority of MC and PBC results were comparable and the risk for contamination and false positive MC results seems to be limited. Since MC can generate results within 4 h following sampling compared with 36–72 h in PBC, MC may have the potential to replace conventional PBC in EOS diagnostics in order to guide clinicians on when to discontinue antibiotic therapy several hours after birth.https://www.mdpi.com/2076-2607/11/4/960early onset sepsisneonatesmolecular culturediagnosisIS-pro
spellingShingle Thomas Dierikx
Andries Budding
Martine Bos
Henriëtte van Laerhoven
Sophie van der Schoor
Hendrik Niemarkt
Marc Benninga
Anton van Kaam
Douwe Visser
Tim de Meij
Potential of Molecular Culture in Early Onset Neonatal Sepsis Diagnosis: A Proof of Principle Study
Microorganisms
early onset sepsis
neonates
molecular culture
diagnosis
IS-pro
title Potential of Molecular Culture in Early Onset Neonatal Sepsis Diagnosis: A Proof of Principle Study
title_full Potential of Molecular Culture in Early Onset Neonatal Sepsis Diagnosis: A Proof of Principle Study
title_fullStr Potential of Molecular Culture in Early Onset Neonatal Sepsis Diagnosis: A Proof of Principle Study
title_full_unstemmed Potential of Molecular Culture in Early Onset Neonatal Sepsis Diagnosis: A Proof of Principle Study
title_short Potential of Molecular Culture in Early Onset Neonatal Sepsis Diagnosis: A Proof of Principle Study
title_sort potential of molecular culture in early onset neonatal sepsis diagnosis a proof of principle study
topic early onset sepsis
neonates
molecular culture
diagnosis
IS-pro
url https://www.mdpi.com/2076-2607/11/4/960
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