Prognostic value of undetectable hs troponin T in suspected acute coronary syndrome

Background - The search for improved strategies for safe and early discharge of patients with suspected acute coronary syndrome in emergency departments is ongoing. This Biomarkers in Cardiology (BIC)-8 biomarker substudy evaluated the usefulness of high-sensitivity troponin T (hsTnT) below or above...

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Hauptverfasser: Vafaie, Mehrshad (VerfasserIn) , Slagman, Anna (VerfasserIn) , Möckel, Martin (VerfasserIn) , Hamm, Christian (VerfasserIn) , Huber, Kurt (VerfasserIn) , Müller, Christian (VerfasserIn) , Vollert, Jörn O. (VerfasserIn) , Blankenberg, Stefan (VerfasserIn) , Katus, Hugo (VerfasserIn) , Liebetrau, Christoph (VerfasserIn) , Giannitsis, Evangelos (VerfasserIn) , Searle, Julia (VerfasserIn)
Dokumenttyp: Article (Journal)
Sprache:Englisch
Veröffentlicht: [2016]
In: The American journal of medicine
Year: 2016, Jahrgang: 129, Heft: 3, Pages: 274-282, 282.e1-282.e2
ISSN:1555-7162
DOI:10.1016/j.amjmed.2015.10.016
Online-Zugang:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.amjmed.2015.10.016
Verlag, lizenzpflichtig, Volltext: http://www.sciencedirect.com/science/article/pii/S0002934315010207
Volltext
Verfasserangaben:Mehrshad Vafaie, Anna Slagman, Martin Möckel, Christian Hamm, Kurt Huber, Christian Müller, Jörn O. Vollert, Stefan Blankenberg, Hugo A. Katus, Christoph Liebetrau, Evangelos Giannitsis, Julia Searle

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520 |a Background - The search for improved strategies for safe and early discharge of patients with suspected acute coronary syndrome in emergency departments is ongoing. This Biomarkers in Cardiology (BIC)-8 biomarker substudy evaluated the usefulness of high-sensitivity troponin T (hsTnT) below or above the limit of detection (LoD) in low-to-intermediate-risk patients with suspected acute coronary syndrome in the emergency department. - Methods - Patients were categorized into hsTnT ≥ the 99th percentile, between the 99th percentile and LoD, or undetectable hsTnT (<LoD). HsTnT and copeptin were measured at admission, using a copeptin cut-off of 10 pmol/L. The primary endpoint was death and myocardial infarction within 90 days after admission. - Results - Of 882 patients with all biomarker results, 577 (65.4%) had detectable hsTnT levels (≥LoD). Among the 305 patients (34.6%) with undetectable hsTnT, no myocardial infarctions or deaths occurred within 90 days. In patients with detectable hsTnT at admission (≥LoD but ≤99th percentile), the combined endpoint occurred in 1.5% (6/410) of the copeptin-negative patients and in 6.3% (6/96) of copeptin-positive patients within 90 days (hazard ratio 4.39; 95% confidence interval, 1.42-13.61; P = .01). In patients with an initially elevated hsTnT (≥14 ng/L), 9.7% (3/31) of the copeptin-negative patients and 15.4% (4/26) of the copeptin-positive patients experienced the combined endpoint (hazard ratio 1.61; 95% confidence interval, 0.36-7.17; P = .536). - Conclusions - In low-to-intermediate-risk patients with suspected acute coronary syndrome, undetectable hsTnT values at admission allow a safe discharge without occurrence of death or myocardial infarction within 90 days. 
650 4 |a Acute coronary syndrome (ACS) 
650 4 |a Acute myocardial infarction (AMI) 
650 4 |a Copeptin 
650 4 |a High-sensitivity troponin T (hsTnT) 
650 4 |a Limit of detection (LoD) 
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