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Role of copeptin in dual-cardiac marker strategy for patients with chest pain presented to ED.

AbstractOBJECTIVE:
The objective of the study is to evaluate the role of copeptin in the diagnosis of acute coronary syndrome (ACS) and its role in dual-cardiac marker diagnostic strategy with troponin.
DESIGN:
A prospective cohort study was carried out from May 2012 to October 2012.
SETTING:
The study was conducted at the emergency department (ED) of a public hospital in a cluster of Hong Kong.
METHODS:
Patients aged at least 18 years presented with chest pain to ED who have intermediate or high likelihood of ACS were included. All patients had blood taken in the ED for copeptin and troponin I. The adjudicated diagnoses of ACS were made by 2 independent physicians based on the universal definition. Diagnostic characteristics were calculated. Receiver operating characteristic curves were created. Areas under the curves were compared for copeptin, troponin I, and dual-marker strategy with copeptin and troponin I.
RESULTS:
A total of 637 patients were recruited. Seventy-eight had been diagnosed to be ACS. The negative predictive value of copeptin for ACS was 0.881 (0.849-0.907) compared with troponin I, 0.937 (0.913-0.956). The areas under the receiver operating characteristic curves of copeptin, troponin I, and dual-marker strategy were 0.68, 0.859, and 0.880, respectively.
CONCLUSIONS:
Addition of copeptin to troponin does not have significant improvement of the diagnostic accuracy of ACS in patients presented with chest pain.
AuthorsChun Tat Lui, Ho Lam, Koon Ho Cheung, Sze Fai Yip, Kwok Leung Tsui, Chak Wah Kam, Ka Lung Chui, Ping Wa Yam, Beata Morawiec, Damian Kawecki
JournalThe American journal of emergency medicine (Am J Emerg Med) Vol. 33 Issue 12 Pg. 1732-6 (Dec 2015) ISSN: 1532-8171 [Electronic] United States
PMID26341809 (Publication Type: Journal Article)
CopyrightCopyright © 2015 Elsevier Inc. All rights reserved.

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