Faculty Collaboration Database

Distinct heritable patterns of angiographic coronary artery disease in families with myocardial infarction. Circulation 2005 Feb 22;111(7):855-62

Date

02/16/2005

Pubmed ID

15710764

DOI

10.1161/01.CIR.0000155611.41961.BB

Scopus ID

2-s2.0-20044382611 (requires institutional sign-in at Scopus site)   149 Citations

Abstract

BACKGROUND: Coronary artery disease (CAD) and myocardial infarction (MI) are significantly determined by genetic background. Whether distinct angiographic features of CAD are affected by inherited factors has never been investigated. Thus, we analyzed comprehensively the extent to which various aspects of CAD, including disease severity, distribution of lesions, presence of coronary calcification, morphology of stenoses, and anatomic characteristics, are under genetic control.

METHODS AND RESULTS: We retrospectively studied the coronary angiograms of 882 siblings with CAD from 401 families. These families were ascertained through index patients defined by MI before the age of 60 years and at least 1 sibling with MI or coronary revascularization procedures. Heritability calculations were performed with variance-component analysis. Additionally, recurrence risks to siblings were analyzed. Traditional cardiovascular risk factors and age at the first coronary event displayed significant heritable components. After adjustment for age and sex, significant heritabilities were identified for proximal stenoses, in particular, left main CAD (h2=0.49+/-0.12; P=0.01), coronary calcification (h2=0.51+/-0.17; P=0.001), and ectatic coronary lesions (h2=0.52+/-0.07; P=0.001). In contrast, no heritability was found for distal disease (h2=0.05+/-0.19; NS), the pattern of coronary arterial blood supply, or the number of diseased vessels. Calculation of recurrence risks in siblings largely confirmed the heritability estimates.

CONCLUSIONS: Distinct morphological characteristics associated with CAD show different degrees of heritability. Notably, the most hazardous localizations, like left main or proximal disease, display a high heritability. In contrast, some features of coronary morphology, such as distal disease, do not appear to be markedly influenced by heritable factors.

Author List

Fischer M, Broeckel U, Holmer S, Baessler A, Hengstenberg C, Mayer B, Erdmann J, Klein G, Riegger G, Jacob HJ, Schunkert H

Author

Ulrich Broeckel MD Chief, Center Associate Director, Professor in the Pediatrics department at Medical College of Wisconsin

MESH terms used to index this publication - Major topics in bold

Analysis of Variance
Calcinosis
Coronary Angiography
Coronary Artery Disease
Coronary Circulation
Coronary Stenosis
Family Health
Female
Humans
Inheritance Patterns
Male
Middle Aged
Myocardial Infarction
Recurrence
Retrospective Studies
Risk Factors
Siblings