Equal clinical performance of a novel point-of-care cardiac troponin I (cTnI) assay with a commonly used high-sensitivity cTnI assay
Background: Efficient rule-out of acute myocardial infarction (MI) facilitates early disposition of chest pain patients in emergency departments (ED). Point-of-care (POC) cardiac troponin (cTn) may improve patient throughput. We compared the diagnostic accuracy of a novel cTnI test (Minicare cTnI, P...
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| Hauptverfasser: | , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
25 March 2017
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| In: |
Clinica chimica acta
Year: 2017, Jahrgang: 469, Pages: 119-125 |
| ISSN: | 1873-3492 |
| DOI: | 10.1016/j.cca.2017.03.023 |
| Online-Zugang: | Verlag, Volltext: http://dx.doi.org/10.1016/j.cca.2017.03.023 Verlag, Volltext: http://www.sciencedirect.com/science/article/pii/S0009898117301006 
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| Verfasserangaben: | Per Venge, Lian van Lippen, Sabine Blaschke, Michael Christ, Felicitas Geier, Evangelos Giannitsis, Emil Hagström, Pierre Hausfater, Mehdi Khellaf, Johannes Mair, David Pariente, Volkher Scharnhorst, Veronique Semjonow |
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| 245 | 1 | 0 | |a Equal clinical performance of a novel point-of-care cardiac troponin I (cTnI) assay with a commonly used high-sensitivity cTnI assay |c Per Venge, Lian van Lippen, Sabine Blaschke, Michael Christ, Felicitas Geier, Evangelos Giannitsis, Emil Hagström, Pierre Hausfater, Mehdi Khellaf, Johannes Mair, David Pariente, Volkher Scharnhorst, Veronique Semjonow |
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| 520 | |a Background: Efficient rule-out of acute myocardial infarction (MI) facilitates early disposition of chest pain patients in emergency departments (ED). Point-of-care (POC) cardiac troponin (cTn) may improve patient throughput. We compared the diagnostic accuracy of a novel cTnI test (Minicare cTnI, Philips), with current POC cTnI (I-Stat, Abbott) and high-sensitivity central laboratory cTnI (hs-cTnI; Architect, Abbott) assays. Methods: The clinical performance of the assays were compared in samples from 450 patients from a previous clinical evaluation of Minicare cTnI. Results: Minicare cTnI correlated with Architect hs-cTnI (r2=0.85, p<0.0001) and I-Stat cTnI (r2=0.93, p<0.0001). Areas under the receiver operating characteristics curves were 0.87-0.91 at admission (p=ns) and 0.96-0.97 3h after admission (p=ns). The negative predictive values (NPV) at admission were 95% ((92-97%, 95% CI) for Minicare cTnI and increased to 99% (97-100%) at 2-4h, and similar to Architect hs-cTnI (98%, 96-100%), but higher than I-Stat cTnI (95%, 92-97%; p<0.01). Negative likelihood ratios (LR-) after 2-4h were 0.06 (0.02-0.17, 95% CI) for Minicare cTnI, 0.11 (0.05-0.24) for Architect hs-cTnI (p=0.02) and 0.28 (0.18-0.43) for I-Stat cTnI (p<0.0001). The clinical concordances between Minicare cTnI and Architect hs-cTnI were 92% (admission) and 95% (2-4h), with lower concordances between Minicare cTnI and I-Stat cTnI (83% and 78%, respectively; p=0.007). Conclusions: The Minicare cTnI POC assay may become useful for prompt and safe ruling-out of AMI in ED patients with suspected AMI using a guideline supported 0/3h sampling protocol. | ||
| 650 | 4 | |a Acute myocardial infarction | |
| 650 | 4 | |a Cardiac troponin I | |
| 650 | 4 | |a Emergency medicine | |
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