Format

Send to

Choose Destination
See comment in PubMed Commons below
Eur J Heart Fail. 2011 Jul;13(7):726-33. doi: 10.1093/eurjhf/hfr049. Epub 2011 May 26.

Complementary role of copeptin and high-sensitivity troponin in predicting outcome in patients with stable chronic heart failure.

Author information

1
3rd Department of Medicine, Cardiology and Emergency Medicine, Wilhelminen Hospital, Montleartstrasse 37, Vienna, Austria. i_tentzeris@gmx.net

Abstract

AIMS:

Copeptin, the C-terminal part of the vasopressin pro-hormone, is elevated after myocardial infarction and predicts adverse outcome. In the present study we investigated whether the complementary role of copeptin and cardiac troponin T (cTnT) could be used for identification of high-risk patients with chronic stable heart failure.

METHODS AND RESULTS:

We measured copeptin and high-sensitivity cTnT (hs-cTnT) levels in 172 consecutive patients with stable chronic heart failure. Patients were followed for all-cause mortality and hospitalization due to heart failure for a median of 1301 days (interquartile range: 707-1636). In univariate analysis, plasma copeptin showed a moderate but significant correlation with hs-cTnT (r= 0.40 P< 0.001), age (r= 0.36 P< 0.001), creatinine (r= 0.52 P< 0.001), and amino-terminal pro-B type natriuretic peptide (NT-proBNP; r= 0.42 P< 0.001). Both copeptin (P= 0.002) and hs-cTnT (P= 0.005) concentrations were significantly increased in patients with higher New York Heart Association classes. While 109 (58%) patients had hs-cTnT concentrations above normal (>14 pg/mL) 104 patients (55%) had copeptin concentrations above normal (16.4 pmol/L). In survival analysis, both elevated copeptin and hs-cTnT concentrations were significant predictors of outcome (P< 0.001 for both). The combination of both markers showed a graded and highly significant association with impaired clinical outcome, which was independent of plasma NT-proBNP levels (adjusted hazard ratios 1.40, 95% CI, 1.20-1.70; P< 0.001). Adding copeptin concentrations to a prediction model with NT-proBNP and hs-cTnT resulted in significant improvement in model performance (net reclassification improvement 0.208; P< 0.05).

CONCLUSION:

Our data suggest that the combined use of hs-cTnT and copeptin might predict clinical outcome of patients with chronic stable heart failure.

PMID:
21616953
DOI:
10.1093/eurjhf/hfr049
[Indexed for MEDLINE]
Free full text
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Wiley
    Loading ...
    Support Center