Thoracic aortic calcification and coronary heart disease events: The multi-ethnic study of atherosclerosis (MESA)

被引:146
|
作者
Budoff, Matthew J. [2 ]
Nasir, Khurram [1 ,2 ]
Katz, Ronit [3 ]
Takasu, Junichiro [2 ]
Carr, J. Jeffery [4 ]
Wong, Nathan D. [5 ]
Allison, Matthew [6 ]
Lima, Joao A. C. [7 ,8 ,9 ]
Detrano, Robert [2 ]
Blumenthal, Roger S. [1 ]
Kronmal, Richard [3 ]
机构
[1] Johns Hopkins Univ, Johns Hopkins Ciccarone Prevent Cardiol Ctr, Baltimore, MD 21218 USA
[2] Univ Calif Los Angeles, Los Angeles Biomed Res Inst Harbor, Div Cardiol, Torrance, CA USA
[3] Univ Washington, Dept Biostat, Seattle, WA 98195 USA
[4] Wake Forest Sch Med, Dept Radiol Cardiol & Publ Hlth Sci, Winston Salem, NC USA
[5] Univ Calif Irvine, Div Cardiol, Irvine, CA USA
[6] Univ Calif San Diego, San Diego, CA 92103 USA
[7] Johns Hopkins Univ, Dept Med, Baltimore, MD USA
[8] Johns Hopkins Univ, Dept Radiol, Baltimore, MD USA
[9] Johns Hopkins Univ, Dept Epidemiol, Baltimore, MD USA
关键词
Atherosclerosis; Cardiac CT; Coronary calcium; Multi-detector CT; Prognosis; Thoracic atherosclerosis; COMPUTED-TOMOGRAPHY; ARTERY-DISEASE; RISK-FACTORS; CARDIOVASCULAR-DISEASE; WALL CALCIFICATION; PREDICTOR; CALCIUM; LESIONS; CT; ASSOCIATION;
D O I
10.1016/j.atherosclerosis.2010.11.017
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Background: The presence and extent of coronary artery calcium (CAC) is an independent predictor of coronary heart disease (CHD) morbidity and mortality. Few studies have evaluated interactions or independent incremental risk for coronary and thoracic aortic calcification (TAC). The independent predictive value of TAC for CHD events is not well-established. Methods: This study used risk factor and computed tomography scan data from 6807 participants in the multi-ethnic study of atherosclerosis (MESA). Using the same images for each participant, TAC and CAC were each computed using the Agatston method. The study subjects were free of incident CHD at entry into the study. Results: The mean age of the study population (n = 6807) was 62 perpendicular to 10 years (47% males). At baseline, the prevalence of TAC and CAC was 28% (1904/6809) and 50% (3393/6809), respectively. Over 4.5 +/- 0.9 years, a total of 232 participants (3.41%) had CHD events, of which 132 (1.94%) had a hard event (myocardial infarction, resuscitated cardiac arrest, or CHD death). There was a significant interaction between gender and TAC for CHD events (p < 0.05). Specifically, in women, the risk of all CHD event was nearly 3-fold greater among those with any TAC (hazard ratio: 3.04, 95% CI: 1.60-5.76). After further adjustment for increasing CAC score, this risk was attenuated but remained robust (HR: 2.15, 95% CI: 1.10-4.17). Conversely, there was no significant association between TAC and incident CHD in men. In women, the likelihood ratio chi square statistics indicate that the addition of TAC contributed significantly to predicting incident CHD event above that provided by traditional risk factors alone (chi square = 12.44, p = 0.0004) as well as risk factors + CAC scores (chi square = 5.33, p = 0.02). On the other hand, addition of TAC only contributed in the prediction of hard CHD events to traditional risk factors (chi-square = 4.33, p = 0.04) in women, without contributing to the model containing both risk factors and CAC scores (chi square = 1.55, p = 0.21). Conclusion: Our study indicates that TAC is a significant predictor of future coronary events only in women, independent of CAC. On studies obtained for either cardiac or lung applications, determination of TAC may provide modest supplementary prognostic information in women with no extra cost or radiation. (C) 2010 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:196 / 202
页数:7
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