The underestimated issue of non-reproducible cardiac troponin I and T results: case series and systematic review of the literature

被引:28
作者
Favresse, Julien [1 ,2 ]
Bayart, Jean-Louis [3 ]
Gruson, Damien [4 ,5 ]
Bernardini, Sergio [6 ]
Clerico, Aldo [7 ,8 ]
Perrone, Marco [9 ]
机构
[1] Clin St Luc Bouge, Dept Lab Med, 8 Rue St Luc, B-5000 Namur, Belgium
[2] Univ Namur, Namur Res Inst Life Sci, Dept Pharm, Namur, Belgium
[3] Clin St Pierre, Dept Lab Med, Ottignies, Belgium
[4] Clin Univ St Luc, Dept Lab Med, Brussels, Belgium
[5] Catholic Univ Louvain, Brussels, Belgium
[6] Univ Roma Tor Vergata, Dept Clin Biochem & Clin Mol Biol, Rome, Italy
[7] Heart Hosp, CNR Reg Toscana G Monasterio Fdn, Massa, Italy
[8] Scuola Super Sant Anna, Pisa, Italy
[9] Univ Roma Tor Vergata, Dept Cardiol, Rome, Italy
关键词
flyer; outlier; patient safety; prevalence; troponin; FALSE-POSITIVE INCREASES; HIGH-SENSITIVITY ASSAY; RAPID SERUM TUBE; BIOTIN INTERFERENCE; ANALYTICAL OUTLIERS; CONTEMPORARY; PREVENTION; CENTRIFUGATION; IMMUNOASSAYS; ROBUSTNESS;
D O I
10.1515/cclm-2020-1564
中图分类号
R446 [实验室诊断]; R-33 [实验医学、医学实验];
学科分类号
1001 ;
摘要
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.
引用
收藏
页码:1201 / 1211
页数:11
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