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Kontos MC, de Lemos JA, Deitelzweig SB, Diercks DB, Gore MO, Hess EP, McCarthy CP, McCord JK, Musey PI, Villines TC, Wright LJ. 2022 ACC Expert Consensus Decision Pathway on the Evaluation and Disposition of Acute Chest Pain in the Emergency Department: A Report of the American College of Cardiology Solution Set Oversight Committee. J Am Coll Cardiol 2022; 80:1925-1960. [PMID: 36241466 PMCID: PMC10691881 DOI: 10.1016/j.jacc.2022.08.750] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Kaier TE, Twerenbold R, Lopez-Ayala P, Nestelberger T, Boeddinghaus J, Alaour B, Huber IM, Zhi Y, Koechlin L, Wussler D, Wildi K, Shrestha S, Strebel I, Miro O, Martín-Sánchez JF, Christ M, Kawecki D, Keller DI, Rubini Gimenez M, Marber M, Mueller C. A 0/1h-algorithm using cardiac myosin-binding protein C for early diagnosis of myocardial infarction. EUROPEAN HEART JOURNAL. ACUTE CARDIOVASCULAR CARE 2022; 11:325-335. [PMID: 35149868 PMCID: PMC9173679 DOI: 10.1093/ehjacc/zuac007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/18/2022] [Accepted: 01/25/2022] [Indexed: 11/13/2022]
Abstract
AIMS Cardiac myosin-binding protein C (cMyC) demonstrated high diagnostic accuracy for the early detection of non-ST-elevation myocardial infarction (NSTEMI). Its dynamic release kinetics may enable a 0/1h-decision algorithm that is even more effective than the ESC hs-cTnT/I 0/1 h rule-in/rule-out algorithm. METHODS AND RESULTS In a prospective international diagnostic study enrolling patients presenting with suspected NSTEMI to the emergency department, cMyC was measured at presentation and after 1 h in a blinded fashion. Modelled on the ESC hs-cTnT/I 0/1h-algorithms, we derived a 0/1h-cMyC-algorithm. Final diagnosis of NSTEMI was centrally adjudicated according to the 4th Universal Definition of Myocardial Infarction. Among 1495 patients, the prevalence of NSTEMI was 17%. The optimal derived 0/1h-algorithm ruled-out NSTEMI with cMyC 0 h concentration below 10 ng/L (irrespective of chest pain onset) or 0 h cMyC concentrations below 18 ng/L and 0/1 h increase <4 ng/L. Rule-in occurred with 0 h cMyC concentrations of at least 140 ng/L or 0/1 h increase ≥15 ng/L. In the validation cohort (n = 663), the 0/1h-cMyC-algorithm classified 347 patients (52.3%) as 'rule-out', 122 (18.4%) as 'rule-in', and 194 (29.3%) as 'observe'. Negative predictive value for NSTEMI was 99.6% [95% confidence interval (CI) 98.9-100%]; positive predictive value 71.1% (95% CI 63.1-79%). Direct comparison with the ESC hs-cTnT/I 0/1h-algorithms demonstrated comparable safety and even higher triage efficacy using the 0h-sample alone (48.1% vs. 21.2% for ESC hs-cTnT-0/1 h and 29.9% for ESC hs-cTnI-0/1 h; P < 0.001). CONCLUSION The cMyC 0/1h-algorithm provided excellent safety and identified a greater proportion of patients suitable for direct rule-out or rule-in based on a single measurement than the ESC 0/1h-algorithm using hs-cTnT/I. TRIAL REGISTRATION ClinicalTrials.gov number, NCT00470587.
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Grants
- FS/15/13/31320 British Heart Foundation
- G1000737 Medical Research Council
- Swiss National Science Foundation
- TG/15/1/31518, FS/15/13/31320 British Heart Foundation
- European Union
- Swiss Heart Foundation
- University of Basel
- University Hospital Basel, Abbott, Brahms, Beckman Coulter, Quidel, Ortho Clinical Diagnostics, Roche, Singulex, and Siemens
- Medical Research Council (London, UK)
- Guy's and St Thomas' Charity
- UK Department of Health through the National Institute for Health Research Biomedical Research Centre
- Guy’s & St Thomas’ National Health Service Foundation Trust
- NIHR clinical lectureship
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Affiliation(s)
- Thomas E Kaier
- King’s College London BHF Centre, The Rayne Institute, St Thomas’ Hospital, London, UK
| | - Raphael Twerenbold
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
- University Center of Cardiovascular Science and Department of Cardiology, University Heart and Vascular Center Hamburg, Hamburg, Germany
| | - Pedro Lopez-Ayala
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
| | - Thomas Nestelberger
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
- Division of Cardiology, Vancouver General Hospital, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jasper Boeddinghaus
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
| | - Bashir Alaour
- King’s College London BHF Centre, The Rayne Institute, St Thomas’ Hospital, London, UK
| | - Iris-Martina Huber
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
| | - Yuan Zhi
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
| | - Luca Koechlin
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
- Department of Cardiac Surgery, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Desiree Wussler
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
| | - Karin Wildi
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
- Critical Care Research Institute, The Prince Charles Hospital, Brisbane, Queensland, Australia
- University of Queensland, Brisbane, Queensland, Australia
| | - Samyut Shrestha
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
| | - Ivo Strebel
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
| | - Oscar Miro
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
- Emergency Department, Hospital Clinic, Barcelona, Catalonia, Spain
| | - Javier F Martín-Sánchez
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
- Emergency Department, Hospital Clinico San Carlos, Madrid, Spain
| | - Michael Christ
- GREAT Network
- Department of Emergency Medicine, Luzerner Kantonsspital, Lucerne, Switzerland
| | - Damien Kawecki
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
| | - Dagmar I Keller
- Emergency Department, University Hospital Zurich, Zurich, Switzerland
| | - Maria Rubini Gimenez
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
- Department of Internal Medicine/Cardiology, Heart Center Leipzig, University of Leipzig, Leipzig Heart Institute, 04289 Leipzig, Germany
| | - Michael Marber
- King’s College London BHF Centre, The Rayne Institute, St Thomas’ Hospital, London, UK
| | - Christian Mueller
- Department of Cardiology, Cardiovascular Research Institute Basel (CRIB), University Hospital Basel, University of Basel, Petersgraben 4, CH-4031 Basel, Switzerland
- GREAT Network
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Kleemeier S, Abildgaard A, Ladefoged SA, Thorsted Sørensen J, Stengaard C, Adelborg K. High-sensitivity troponin T and I in patients suspected of acute myocardial infarction. Scandinavian Journal of Clinical and Laboratory Investigation 2022; 82:96-103. [DOI: 10.1080/00365513.2022.2033310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Steffan Kleemeier
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
| | - Anders Abildgaard
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
| | | | | | - Carsten Stengaard
- Department of Cardiology, Aarhus University Hospital, Aarhus, Denmark
| | - Kasper Adelborg
- Department of Clinical Medicine, Faculty of Health, Aarhus University, Aarhus, Denmark
- Department of Clinical Biochemistry, Aarhus University Hospital, Aarhus, Denmark
- Department of Clinical Epidemiology, Aarhus University Hospital, Aarhus, Denmark
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Krintus M, Panteghini M. Laboratory-related issues in the measurement of cardiac troponins with highly sensitive assays. Clin Chem Lab Med 2021; 58:1773-1783. [PMID: 32134723 DOI: 10.1515/cclm-2020-0017] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 01/24/2020] [Indexed: 12/13/2022]
Abstract
A number of assay-related issues can affect the performance of cardiac troponin (cTn) measurement in everyday practice. In this respect, it is vital that all information on cTn assays is known and that the performance characteristics of assays are objectively assessed and adequately described. The advent of the latest generation of more sensitive cTn assays has heralded a new wave of information about low concentrations of cTn in blood. These recent generation assays have improved analytical sensitivity and corresponding performance at low cTn concentrations when compared to their predecessors, providing a convincing goal for laboratory medicine in helping clinicians in the diagnosis of acute myocardial infarction. Crucial to the clinical utility of highly sensitive cTn assays is the laboratorians' role in closely scrutinizing proposed assays and defining their value in relation to available evidence. Analytical, as well as pre-analytical and post-analytical, aspects must be documented. In this review, we describe what laboratory professionals should know about their cTn assay performance characteristics and the pre-analytical prerequisites for robustness to ensure optimal post-analytical reporting.
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Affiliation(s)
- Magdalena Krintus
- Department of Laboratory Medicine, Nicolaus Copernicus University, Collegium Medicum, 9 Sklodowskiej-Curie Street, 85-094 Bydgoszcz, Poland, Phone: +48 52 585 44 90, Fax: +48 52 585 36 03
| | - Mauro Panteghini
- Department of Biomedical and Clinical Sciences 'Luigi Sacco', University of Milan, Milan, Italy
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Braga F, Aloisio E, Panzeri A, Nakagawa T, Panteghini M. Analytical validation of a highly sensitive point-of-care system for cardiac troponin I determination. ACTA ACUST UNITED AC 2019; 58:138-145. [DOI: 10.1515/cclm-2019-0801] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Accepted: 09/22/2019] [Indexed: 12/28/2022]
Abstract
Abstract
Background
Highly sensitive cardiac troponin assays (hs-cTn) are not available as point-of-care (POC) measurements. As rapid testing cannot be achieved at the expense of clinical performance, there is an urgent need to develop and rigorously validate POC hs-cTn. Konica Minolta (KM) has recently developed a surface plasmon-field enhanced fluorescence spectroscopy-based POC hs-cTn I system.
Methods
We validated the analytical characteristics of the KM POC system according to the international guidelines.
Results
Limit of blank (LoB) and limit of detection (LoD) were 0.35 and 0.62 ng/L, respectively, hs-cTn I concentrations corresponding to a total CV of 20%, 10% and 5% were 1.5, 3.9 and 11.0 ng/L, respectively. Method comparison studies showed that KM calibration was successfully traced to higher-order references. Limit of quantitation (LoQ), i.e. the hs-cTn I concentration having a total error of measurement of ≤34%, was 10.0 ng/L. The upper reference limit (URL) for 600 healthy blood donors was calculated at 12.2 ng/L (90% confidence interval [CI]: 9.2–39.2), while sex-partitioned URLs were 20.6 (males) and 10.7 ng/L (females), respectively (p < 0.0001). KM assay measured hs-cTn I concentrations >LoD in 65.7% of all reference individuals, in 76.7% of males and in 54.7% of females, respectively.
Conclusions
The KM system joins the characteristics of POC systems to the analytical performance of hs-cTn.
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Affiliation(s)
- Federica Braga
- Department of Biomedical and Clinical Sciences ‘Luigi Sacco’ , Università di Milano , Milan , Italy
- UOC Patologia Clinica, ASST Fatebenefratelli-Sacco , Via GB Grassi 74 , 20157 Milano , Italy , Phone: +390239042743, Fax: +390250319835
| | - Elena Aloisio
- Department of Biomedical and Clinical Sciences ‘Luigi Sacco’ , Università di Milano , Milan , Italy
- UOC Patologia Clinica, ASST Fatebenefratelli-Sacco , Milano , Italy
| | - Andrea Panzeri
- Department of Biomedical and Clinical Sciences ‘Luigi Sacco’ , Università di Milano , Milan , Italy
- UOC Patologia Clinica, ASST Fatebenefratelli-Sacco , Milano , Italy
| | - Takahito Nakagawa
- Konica Minolta, Inc., Project Promotion Department , Product Planning Division, Precision Medicine Business Unit , Tokyo , Japan
| | - Mauro Panteghini
- Department of Biomedical and Clinical Sciences ‘Luigi Sacco’ , Università di Milano , Milan , Italy
- UOC Patologia Clinica, ASST Fatebenefratelli-Sacco , Milano , Italy
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Boeddinghaus J, Twerenbold R, Nestelberger T, Koechlin L, Wussler D, Meier M, Troester V, Zimmermann T, Badertscher P, Wildi K, Rubini Giménez M, Lopez-Ayala P, Potlukova E, Miró Ò, Martin-Sanchez FJ, Kawecki D, Geigy N, Keller DI, Reichlin T, Mueller C. Clinical Use of a New High-Sensitivity Cardiac Troponin I Assay in Patients with Suspected Myocardial Infarction. Clin Chem 2019; 65:1426-1436. [PMID: 31570633 DOI: 10.1373/clinchem.2019.304725] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Accepted: 08/07/2019] [Indexed: 11/06/2022]
Abstract
BACKGROUND We aimed to validate the clinical performance of the high-sensitivity cardiac troponin I [VITROS® Immunodiagnostic Products hs Troponin I (hs-cTnI-VITROS)] assay. METHODS We enrolled patients presenting to the emergency department with symptoms suggestive of acute myocardial infarction (AMI). Final diagnoses were centrally adjudicated by 2 independent cardiologists considering all clinical information, including cardiac imaging: first, using serial hs-cTnT-Elecsys (primary analysis) and, second, using hs-cTnI-Architect (secondary analysis) measurements in addition to the clinically used (hs)-cTn. hs-cTnI-VITROS was measured at presentation and at 1 h in a blinded fashion. The primary objective was direct comparison of diagnostic accuracy as quantified by the area under the ROC curve (AUC) of hs-cTnI-VITROS vs hs-cTnT-Elecsys and hs-cTnI-Architect, and in a subgroup also hs-cTnI-Centaur and hs-cTnI-Access. Secondary objectives included the derivation and validation of an hs-cTnI-VITROS-0/1-h algorithm. RESULTS AMI was the adjudicated final diagnosis in 158 of 1231 (13%) patients. At presentation, the AUC for hs-cTnI-VITROS was 0.95 (95% CI, 0.93-0.96); for hs-cTnT-Elecsys, 0.94 (95% CI, 0.92-0.95); and for hs-cTnI-Architect, 0.92 (95% CI, 0.90-0.94). AUCs for hs-cTnI-Centaur and hs-cTnI-Access were 0.95 (95% CI, 0.94-0.97). Applying the derived hs-cTnI-VITROS-0/1-h algorithm (derivation cohort n = 519) to the validation cohort (n = 520), 53% of patients were ruled out [sensitivity, 100% (95% CI, 94.1-100)] and 14% of patients were ruled in [specificity, 95.6% (95% CI, 93.4-97.2)]. Patients ruled out by the 0/1-h algorithm had a survival rate of 99.8% at 30 days. Findings were confirmed in the secondary analyses using the adjudication including serial measurements of hs-cTnI-Architect. CONCLUSIONS The hs-cTnI-VITROS assay has at least comparable diagnostic accuracy with the currently best validated hs-cTnT and hs-cTnI assays. CLINICALTRIALSGOV IDENTIFIER NCT00470587.
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Affiliation(s)
- Jasper Boeddinghaus
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,Division of Internal Medicine, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network
| | - Raphael Twerenbold
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network
| | - Thomas Nestelberger
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network
| | - Luca Koechlin
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,Department of Cardiac Surgery, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Desiree Wussler
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,Division of Internal Medicine, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network
| | - Mario Meier
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network
| | - Valentina Troester
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network
| | - Tobias Zimmermann
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network
| | - Patrick Badertscher
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network.,Division of Cardiology, University of Illinois at Chicago, Chicago, IL
| | - Karin Wildi
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network.,Critical Care Research Group, the Prince Charles Hospital, Brisbane and the University of Queensland, Brisbane, Australia
| | - Maria Rubini Giménez
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network
| | - Pedro Lopez-Ayala
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network
| | - Eliska Potlukova
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,Division of Internal Medicine, University Hospital Basel, University of Basel, Basel, Switzerland
| | - Òscar Miró
- GREAT network.,Emergency Department, Hospital Clinic, Barcelona, Catalonia, Spain
| | | | - Damian Kawecki
- GREAT network.,2nd Department of Cardiology, School of Medicine with the Division of Dentistry in Zabrze, Medical University of Katowice, Katowice, Poland
| | - Nicolas Geigy
- Emergency Department, Kantonsspital Liestal, Liestal, Switzerland
| | - Dagmar I Keller
- Emergency Department, University Hospital Zurich, Zurich, Switzerland
| | - Tobias Reichlin
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland.,GREAT network.,Department of Cardiology, Inselspital, University of Bern, Bern, Switzerland
| | - Christian Mueller
- Cardiovascular Research Institute Basel (CRIB) and Department of Cardiology, University Hospital Basel, University of Basel, Basel, Switzerland; .,GREAT network
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