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2 - Epidemiology of carotid artery atherosclerosis

from Background

Published online by Cambridge University Press:  03 December 2009

By
Christopher J. O'Donnell
Edited by
Jonathan Gillard ,
Martin Graves ,
Thomas Hatsukami  and
Chun Yuan
Christopher J. O'Donnell
Affiliation:
National Heart, Lung and Blood Institute and its Framingham Heart Study, Bethesda, MD, and Department of Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
Jonathan Gillard
Affiliation:
University of Cambridge
Martin Graves
Affiliation:
University of Cambridge
Thomas Hatsukami
Affiliation:
University of Washington
Chun Yuan
Affiliation:
University of Washington
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Summary

Introduction

Cardiovascular disease, including stroke and myocardial infarction, is the leading cause of death and disability in the Western world (Thom et al., 2006). When considered separately from other cardiovascular diseases, stroke is a leading cause of mortality, ranked third behind diseases of the heart and cancer (Thom et al., 2006). There are estimated to be 500 000 newly diagnosed cases of stroke in the USA annually, the majority of which are ischemic in nature (Thom et al., 2006). The age-adjusted incidence rate of stroke is substantially greater in Blacks than Whites (White et al., 2005).

Atherosclerotic cardiovascular disease in general, and ischemic stroke in particular, is usually preceded by the presence of subclinical atherosclerosis that develops in the carotid arteries and other vessels. The pathological characteristics of carotid artery atherosclerosis are described in elegant detail by Virmani et al. in Chapter 1. Here, we review the epidemiology of carotid artery atherosclerosis, including its distribution, determinants and risks conferred by its presence. The available evidence demonstrates that carotid artery atherosclerosis is common and high risk, and the identification and treatment of carotid artery atherosclerosis may substantially reduce the burden of cardiovascular disease.

Subclinical atherosclerosis precedes clinically apparent disease

From the current pathological evidence, subclinical atherosclerosis appears to be common and to precede most cases of clinically apparent disease. Atherosclerotic lesions of the human aorta, both fatty streaks and fibrous plaques, are commonly noted in autopsy studies of combatant soldiers and other teenage and young adult victims of premature noncoronary death (Solberg and Strong, 1983; Strong, 1995).

Keywords

B-mode imagingcardiovascular diseasecarotid artery atherosclerosiscarotid artery segmentsintimal medial thicknesscarotid stenosis
Type
Chapter
Information
Carotid Disease
The Role of Imaging in Diagnosis and Management
 , pp. 22 - 34
Publisher: Cambridge University Press
Print publication year: 2006

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