Coronary artery atherosclerosis is related to reduced regional left ventricular function in individuals without history of clinical cardiovascular disease - The Multiethnic Study of Atherosclerosis

被引:57
作者
Edvardsen, T
Detrano, R
Rosen, BD
Carr, JJ
Liu, K
Lai, SH
Shea, S
Pan, L
Bluemke, DA
Lima, JAC
机构
[1] Johns Hopkins Univ, Div Cardiol, Baltimore, MD USA
[2] Johns Hopkins Univ, Dept Epidemiol, Baltimore, MD USA
[3] Johns Hopkins Univ, Dept Radiol, Baltimore, MD USA
[4] Univ Calif Los Angeles, Sch Med, Div Cardiol, Torrance, CA 90509 USA
[5] Wake Forest Univ, Sch Med, Dept Radiol, Winston Salem, NC USA
[6] Northwestern Univ, Feinberg Sch Med, Dept Prevent Med, Chicago, IL 60611 USA
[7] Columbia Univ, Dept Med & Epidemiol, Sch Med, New York, NY USA
[8] Columbia Univ, Dept Med & Epidemiol, Sch Publ Hlth, New York, NY USA
关键词
atherosclerosis; coronary circulation; calcification; MRI; myocardial function;
D O I
10.1161/01.ATV.0000194077.23234.ae
中图分类号
R5 [内科学];
学科分类号
1002 ; 100201 ;
摘要
Objective: We investigated whether regional coronary calcium score by computed tomography is related to regional leftventricular systolic function measured by MRI tagging in participants of the Multiethnic Study of Atherosclerosis. Methods and Results: The Multiethnic Study of Atherosclerosis is a prospective observational study of men and women without a history of previous heart disease from 4 ethnic groups. Calcium scores were measured separately for the left anterior descendent (LAD), left circumflex (LCX), and right (RCA) coronary arteries. Left ventricular strain and strain rate were determined by tagged MRI in the corresponding vascular territories of the coronary vessels in 509 participants. Greater coronary calcification in the LAD, LCX, and right RCA coronary arteries were related to worse function in their respective perfusion. Anterior wall strain rate was -1.37 +/- 0.41 when LAD calcium was zero versus -1.17 +/- 0.24 1/s in the highest quartile of calcium score (P < 0.001). Similar relationships were evident in the LCX and RCA regions. Participants with 1- and 2-vessel coronary artery calcium had better myocardial function in the remote area compared with the territory supplied by the diseased artery. Conclusions: High-local calcium score is related to regional dysfunction in the corresponding coronary territory among individuals without a history of previous heart disease. These results indicate a link between atherosclerosis and subclinical regional left ventricular dysfunction.
引用
收藏
页码:206 / 211
页数:6
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