The underestimated issue of non-reproducible cardiac troponin I and T results: case series and systematic review of the literature.
flyer
outlier
patient safety
prevalence
troponin
Journal
Clinical chemistry and laboratory medicine
ISSN: 1437-4331
Titre abrégé: Clin Chem Lab Med
Pays: Germany
ID NLM: 9806306
Informations de publication
Date de publication:
25 06 2021
25 06 2021
Historique:
received:
21
10
2020
accepted:
23
12
2020
pubmed:
9
2
2021
medline:
19
1
2022
entrez:
8
2
2021
Statut:
epublish
Résumé
Cardiac troponins (cTn) are the preferred biomarkers for the evaluation of myocardial injury and play a key role in the diagnosis of acute myocardial infarction (MI). Pre-analytical or analytical issues and interferences affecting troponin T and I assays are therefore of major concern given the risk of misdiagnosis. False positive troponin results have been related to various interferences including anti-troponin antibodies, heterophilic antibodies, or elevated alkaline phosphatase level. On the other hand, false negative results have been reported in the case of a large biotin intake. These interferences are characterized with erroneous but reproducible troponin results. Of interest, non-reproducible results have also been reported in the literature. In other words, if the sample is reanalyzed a second time, a significant difference in troponin results will be observed. These interferences have been named "fliers" or "outliers". Compared to the biotin interference that received major attention in the literature, troponin outliers are also able to induce harmful clinical consequences for the patient. Moreover, the prevalence of outliers in recent studies was found to be higher (0.28-0.57%) compared to the biotin interference. The aim of this systematic review is to warn clinicians about these non-reproducible results that may alter their clinical judgment. Four case reports that occurred in the Clinique of Saint-Luc Bouge are presented to attest this point. Moreover, we aimed at identifying the nature of these non-reproducible troponin results, determining their occurrence, and describing the best way for their identification.
Identifiants
pubmed: 33554552
doi: 10.1515/cclm-2020-1564
pii: cclm-2020-1564
doi:
Substances chimiques
Biomarkers
0
Troponin I
0
Troponin T
0
Biotin
6SO6U10H04
Types de publication
Journal Article
Systematic Review
Langues
eng
Sous-ensembles de citation
IM
Pagination
1201-1211Commentaires et corrections
Type : CommentIn
Informations de copyright
© 2021 Walter de Gruyter GmbH, Berlin/Boston.
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