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Cardiovascular Endocrinology:
doi: 10.1097/XCE.0b013e32835bfb42
Original articles

Combined measurement of copeptin, high-sensitivity troponin T, and N-terminal proBNP improves the identification of patients at risk of cardiovascular death

Alehagen, Urbana,b; Dahlström, Ulfa,b; Carstensen, Johnc; Rehfeld, Jens F.d; Goetze, Jens P.d

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Abstract

Objectives: A multimarker strategy for the handling of patients with heart failure has been suggested in the literature. Therefore, the potential prognostic relevance of combined copeptin, high-sensitivity troponin T (HS-TnT), and N-terminal proBNP (NT-proBNP) measurement in plasma from elderly patients with symptoms of heart failure was evaluated.

Methods: This study included 470 elderly patients (mean age 73 years) from a rural municipality with symptoms of heart failure. Clinical examination, echocardiography, and biomarker measurements were performed. All patients were followed for 13 years and all mortality was registered. Cardiovascular mortality was evaluated using Kaplan–Meier plots and multivariate Cox proportional hazard regression analyses.

Results: Copeptin, HS-TnT, and NT-proBNP measurements provided independent prognostic information in a multivariate setting over 5 years (hazard ratio, HR: 3.66; 95% confidence interval, CI 1.27–10.53, HR: 2.52; 95% CI 1.20–5.28, HR: 2.73; 95% CI 1.19–6.26, respectively). Also, the group with all three biomarkers below cut-off values had a low risk for cardiovascular death (1.8% of the patients in this group died in the 5-year follow-up period). In the 13-year follow-up, combined copeptin and HS-TnT measurement did not provide independent prognostic information.

Conclusion: Combined copeptin, HS-TnT, and NT-proBNP plasma measurements provide prognostic information on cardiovascular mortality that is superior to single biomarker use.

© 2012Wolters Kluwer Health Lippincott Williams Wilkins

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