Universität zu Köln

Rogina, Petra, Skvarc, Miha, Stubljar, David ORCID: 0000-0002-9653-9830, Kofol, Romina and Kaasch, Achim ORCID: 0000-0002-6659-6738 (2014). Diagnostic Utility of Broad Range Bacterial 16S rRNA Gene PCR with Degradation of Human and Free Bacterial DNA in Bloodstream Infection Is More Sensitive Than an In-House Developed PCR without Degradation of Human and Free Bacterial DNA. Mediat. Inflamm., 2014. LONDON: HINDAWI LTD. ISSN 1466-1861

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Abstract

We compared a commercial broad range 16S rRNA gene PCR assay (SepsiTest) to an in-house developed assay (IHP). We assessed whether CD64 index, a biomarker of bacterial infection, can be used to exclude patients with a low probability of systemic bacterial infection. From January to March 2010, 23 patients with suspected sepsis were enrolled. CD64 index, procalcitonin, and C-reactive protein were measured on admission. Broad range 16S rRNA gene PCR was performed from whole blood (SepsiTest) or blood plasma (IHP) and compared to blood culture results. Blood samples spiked with Staphylococcus aureus were used to assess sensitivity of the molecular assays in vitro. CD64 index was lower in patients where possible sepsis was excluded than in patients with microbiologically confirmed sepsis (P. = 0.004). SepsiTest identified more relevant pathogens than blood cultures (P. = 0.008); in three patients (13%) results from blood culture and SepsiTest were congruent, whereas in four cases (17.4%) relevant pathogens were detected by SepsiTest only. In vitro spiking experiments suggested equal sensitivity of SepsiTest and IHP. A diagnostic algorithm using CD64 index as a decision maker to perform SepsiTest shows improved detection of pathogens in patients with suspected blood stream infection and may enable earlier targeted antibiotic therapy.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Rogina, Petra UNSPECIFIED UNSPECIFIED UNSPECIFIED Skvarc, Miha UNSPECIFIED UNSPECIFIED UNSPECIFIED Stubljar, David UNSPECIFIED orcid.org/0000-0002-9653-9830 UNSPECIFIED Kofol, Romina UNSPECIFIED UNSPECIFIED UNSPECIFIED Kaasch, Achim UNSPECIFIED orcid.org/0000-0002-6659-6738 UNSPECIFIED
URN:	urn:nbn:de:hbz:38-449974
DOI:	10.1155/2014/108592
Journal or Publication Title:	Mediat. Inflamm.
Volume:	2014
Date:	2014
Publisher:	HINDAWI LTD
Place of Publication:	LONDON
ISSN:	1466-1861
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language WHOLE-BLOOD; IDENTIFICATION; CULTURES; SEPSIS; ASSAYS Multiple languages Cell Biology; Immunology Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/44997