“Troponinosis”, the Cardiologist’s Curse—When Clinic–Laboratory Interaction Unveils the Mystery: A Case Report

Cardiac troponins are key diagnostic and prognostic biomarkers in acute myocardial infarction and, more generally, for the detection of myocardial injury. Since the introduction of the first immunochemistry methods, there has been a remarkable evolution in analytical performance, especially concerni...

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Main Authors: Davide Bosi, Simone Canovi, Andrea Pennacchioni, Pierluigi Demola, Mattia Corradini, Vincenzo Guiducci, Rossana Colla, Alessandro Navazio
Format: Article
Language:English
Published: MDPI AG 2023-09-01
Series:Journal of Cardiovascular Development and Disease
Subjects:
Online Access:https://www.mdpi.com/2308-3425/10/9/378
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author Davide Bosi
Simone Canovi
Andrea Pennacchioni
Pierluigi Demola
Mattia Corradini
Vincenzo Guiducci
Rossana Colla
Alessandro Navazio
author_facet Davide Bosi
Simone Canovi
Andrea Pennacchioni
Pierluigi Demola
Mattia Corradini
Vincenzo Guiducci
Rossana Colla
Alessandro Navazio
author_sort Davide Bosi
collection DOAJ
description Cardiac troponins are key diagnostic and prognostic biomarkers in acute myocardial infarction and, more generally, for the detection of myocardial injury. Since the introduction of the first immunochemistry methods, there has been a remarkable evolution in analytical performance, especially concerning a progressive improvement in sensitivity. However, the measurement of circulating troponins remains rarely susceptible to analytical interferences. We report a case of persistently elevated troponin I concentrations in a patient with known ischemic heart disease, which almost led to unnecessary diagnostic–therapeutic interventions. A prompt laboratory consultation by the cardiologist ultimately led to the identification of an analytical interference due to troponin macrocomplexes (macrotroponin) causing elevated troponin values in the absence of a clinical presentation compatible with myocardial damage.
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spelling doaj.art-bb5f1020a4c540bc92c68b0c1e2c625c2023-11-19T11:16:35ZengMDPI AGJournal of Cardiovascular Development and Disease2308-34252023-09-0110937810.3390/jcdd10090378“Troponinosis”, the Cardiologist’s Curse—When Clinic–Laboratory Interaction Unveils the Mystery: A Case ReportDavide Bosi0Simone Canovi1Andrea Pennacchioni2Pierluigi Demola3Mattia Corradini4Vincenzo Guiducci5Rossana Colla6Alessandro Navazio7Cardiology Unit, AUSL—IRCCS di Reggio Emilia, 42100 Reggio Emilia, ItalyClinical Laboratory Unit, AUSL—IRCCS di Reggio Emilia, 42100 Reggio Emilia, ItalyCardiology Unit, AUSL—IRCCS di Reggio Emilia, 42100 Reggio Emilia, ItalyCardiology Unit, AUSL—IRCCS di Reggio Emilia, 42100 Reggio Emilia, ItalyClinical Laboratory Unit, AUSL—IRCCS di Reggio Emilia, 42100 Reggio Emilia, ItalyCardiology Unit, AUSL—IRCCS di Reggio Emilia, 42100 Reggio Emilia, ItalyClinical Laboratory Unit, AUSL—IRCCS di Reggio Emilia, 42100 Reggio Emilia, ItalyCardiology Unit, AUSL—IRCCS di Reggio Emilia, 42100 Reggio Emilia, ItalyCardiac troponins are key diagnostic and prognostic biomarkers in acute myocardial infarction and, more generally, for the detection of myocardial injury. Since the introduction of the first immunochemistry methods, there has been a remarkable evolution in analytical performance, especially concerning a progressive improvement in sensitivity. However, the measurement of circulating troponins remains rarely susceptible to analytical interferences. We report a case of persistently elevated troponin I concentrations in a patient with known ischemic heart disease, which almost led to unnecessary diagnostic–therapeutic interventions. A prompt laboratory consultation by the cardiologist ultimately led to the identification of an analytical interference due to troponin macrocomplexes (macrotroponin) causing elevated troponin values in the absence of a clinical presentation compatible with myocardial damage.https://www.mdpi.com/2308-3425/10/9/378high-sensitivity troponinacute coronary syndromeimmunoglobulinlaboratory testsanalytic interference
spellingShingle Davide Bosi
Simone Canovi
Andrea Pennacchioni
Pierluigi Demola
Mattia Corradini
Vincenzo Guiducci
Rossana Colla
Alessandro Navazio
“Troponinosis”, the Cardiologist’s Curse—When Clinic–Laboratory Interaction Unveils the Mystery: A Case Report
Journal of Cardiovascular Development and Disease
high-sensitivity troponin
acute coronary syndrome
immunoglobulin
laboratory tests
analytic interference
title “Troponinosis”, the Cardiologist’s Curse—When Clinic–Laboratory Interaction Unveils the Mystery: A Case Report
title_full “Troponinosis”, the Cardiologist’s Curse—When Clinic–Laboratory Interaction Unveils the Mystery: A Case Report
title_fullStr “Troponinosis”, the Cardiologist’s Curse—When Clinic–Laboratory Interaction Unveils the Mystery: A Case Report
title_full_unstemmed “Troponinosis”, the Cardiologist’s Curse—When Clinic–Laboratory Interaction Unveils the Mystery: A Case Report
title_short “Troponinosis”, the Cardiologist’s Curse—When Clinic–Laboratory Interaction Unveils the Mystery: A Case Report
title_sort troponinosis the cardiologist s curse when clinic laboratory interaction unveils the mystery a case report
topic high-sensitivity troponin
acute coronary syndrome
immunoglobulin
laboratory tests
analytic interference
url https://www.mdpi.com/2308-3425/10/9/378
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