Title

Influence of 23 coronary artery disease variants on recurrent myocardial infarction or cardiac death: the GRACE Genetics Study

UMMS Affiliation

Center for Outcomes Research

Date

11-20-2012

Document Type

Article

Medical Subject Headings

Acute Coronary Syndrome; Myocardial Infarction; Death, Sudden, Cardiac; Coronary Artery Disease; Genetic Association Studies

Disciplines

Cardiology | Cardiovascular Diseases | Medical Genetics

Abstract

Aims: A pooled analysis of 14 genome-wide association studies revealed 23 susceptibility loci for coronary artery disease (CAD), thereby providing the most comprehensive genetic blueprint of CAD susceptibility. Here, we evaluated whether these 23 loci also predispose to recurrent myocardial infarction (MI) or cardiac death following an acute coronary syndrome (ACS).

Methods and results: A total of 2099 ACS patients enrolled in the Global Registry of Acute Coronary Events (GRACE) UK-Belgian study were prospectively followed for a median of 5 years (1668 days). C-allele carriers of the rs579459 variant, which is located upstream of the ABO gene and correlates with blood group A, were independently associated with recurrent MI [multivariable-adjusted hazard ratio (HR) 2.25, CI = 1.37-3.71; P = 0.001] and with recurrent MI or cardiac death [multivariable-adjusted (HR) 1.80, CI = 1.09-2.95; P = 0.021] within 5 years after an index ACS. The association of rs579459 was replicated in 1250 Polish patients with 6 months follow-up after an index ACS [multivariable-adjusted (HR) 2.70, CI = 1.26-5.82; P = 0.011 for recurrent MI]. Addition of rs579459 to a prediction model of 17 clinical risk factors improved risk classification for recurrent MI or cardiac death at 6 months as calculated by the integrated discrimination improvement method (P = 0.037), but not by C-statistics (P = 0.096).

Conclusion: In this observational study, rs579459 was independently associated with adverse cardiac outcome after ACS. A weak improvement in clinical risk prediction was also observed, suggesting that rs579459 should be further tested as a potentially relevant contributor to risk prediction models for adverse outcome following ACS.

Rights and Permissions

Citation: Eur Heart J. 2012 Nov 15. Link to article on publisher's site

Comments

GRACE is supported by an unrestricted educational grant from Sanofi-Aventis to the Center for Outcomes Research, University of Massachusetts Medical School.

Related Resources

Link to Article in PubMed

PubMed ID

23161703