Benedek O, Podbielski A, Warnke P. Laboratory Experience with the
Liaison Analyzer in the Diagnosis of
Clostridium Difficile-Associated Diarrhea.
Eur J Microbiol Immunol (Bp) 2016;
6:215-218. [PMID:
27766170 PMCID:
PMC5063014 DOI:
10.1556/1886.2016.00017]
[Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2016] [Accepted: 05/30/2016] [Indexed: 12/18/2022] Open
Abstract
Background
Chemiluminescent or enzyme-linked fluorescent immunoassays are commonly used to diagnose Clostridium difficile-associated diarrhea.
Methods
The LIAISON analyzer (DiaSorin, Italy) was compared to miniVIDAS (bioMérieux, France) and, furthermore, to culture of toxigenic strains. In total, 249 native stool samples were analyzed. Sensitivities, specificities, and positive and negative predictive values were investigated. Furthermore, performance under routine conditions was assessed.
Results
The glutamate dehydrogenase chemiluminescent immunoassay (GDH-CLIA) assay revealed a high sensitivity and negative predictive value. The toxins A&B assays exhibited approximately the same low sensitivity and high specificity. Technical drawbacks experienced with the LIAISON analyzer in 48% of the analyses considerably delayed the time to the first diagnostic report and interfered with laboratory routine workflow.
Conclusion
The analytical performance of the investigated platforms should be reflected in the context of implementation into the laboratory workflow.
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