Serum YKL-40 predicts long-term mortality in patients with stable coronary disease: a prognostic study within the

Marina Harutyunyan1, Jens P Gøtze, Per Winkel

  • 1Department of Medicine B, The Heart Centre, Rigshospitalet, Copenhagen University Hospital and Faculty of Health Sciences, Copenhagen, Denmark. marinah@dadlnet.dk

Immunobiology
|January 9, 2013
PubMed

Insights

The inflammatory biomarker YKL-40 improves long-term mortality prediction in stable coronary artery disease (CAD) patients. It offers prognostic value independent of traditional risk factors and other biomarkers like hs-CRP and NT-proBNP.

Area of Science:

  • Cardiology
  • Biomarkers
  • Prognostics

Background:

  • Stable coronary artery disease (CAD) patients managed in general practice require prognostic biomarkers.
  • Elevated serum YKL-40 is a known short-term predictor of adverse outcomes in stable CAD.
  • Current risk stratification may benefit from additional predictive markers.

Purpose of the Study:

  • To evaluate if the inflammatory biomarker YKL-40 enhances long-term mortality prediction in stable CAD patients.
  • To assess YKL-40's predictive power beyond established risk factors, high-sensitivity C-reactive protein (hs-CRP), and N-terminal-pro-B natriuretic peptide (NT-proBNP).

Main Methods:

  • Serum YKL-40, hs-CRP, and NT-proBNP levels were measured in 4265 patients with stable CAD.
  • A 6-year follow-up period was used to register all-cause mortality.
  • Statistical analysis involved adjusting for clinical risk factors, medical treatments, and other biomarkers.

Main Results:

  • During 6 years, 923 (21.1%) patients died.
  • Serum YKL-40 was significantly associated with all-cause mortality after adjusting for risk factors (HR=1.55).
  • YKL-40 remained a significant predictor even after additional adjustment for hs-CRP and NT-proBNP (HR=1.38).

Conclusions:

  • Serum YKL-40 independently predicts long-term mortality in stable CAD patients.
  • YKL-40 provides prognostic information beyond common risk factors, hs-CRP, and NT-proBNP.
  • YKL-40 is a valuable biomarker for prognostication in stable CAD.
Abstract

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