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Relationship of dyspnea vs. typical angina to coronary artery disease severity, burden, composition and location on coronary CT angiography.

Rine Nakanishi, Jamal S Rana, Alan Rozanski, Victor Y Cheng, Heidi Gransar, Louise E J Thomson, Romalisa Miranda-Peats, Sean W Hayes, John D Friedman, Daniel S Berman, James K Min

Department of Imaging, Cedars-Sinai Heart Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA; Department of Medicine, Cedars-Sinai Heart Institute, Cedars Sinai Medical Center, Los Angeles, CA, USA.

Atherosclerosis 2013 Sep


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  • angiography (1)
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    Symptom presentations suspicious for coronary artery disease (CAD) vary widely. While dyspnea is associated with worse prognosis than typical angina (TypAng) for patients referred for non-invasive CAD imaging, the relation of dyspnea vs. TypAng to adverse measures of CAD prognosis-including severity, burden, composition, and myocardium at risk-has not been examined. We studied 1443 consecutive individuals without known CAD (mean 61 ± 13 years, 61.6% men) undergoing coronary computed tomographic angiography (CCTA) who presented with dyspnea (n = 170), TypAng (n = 249) or no dyspnea or TypAng (n = 1024). Multivariable logistic regression was performed to evaluate the association of dyspnea or TypAng to obstructive CAD (≥70% stenosis), plaque burden (total segments with plaque), composition (noncalcified, partially calcified) and location (proximal, mid, or distal location in a coronary artery). By multivariable logistic regression, both dyspnea (OR1.9, 95% CI 1.1-3.3, p = 0.02) and TypAng (OR1.9, 95% CI 1.2-3.1, p = 0.01) were associated with obstructive CAD as compared to individuals without dyspnea or TypAng, while dyspnea (OR1.8, 95% CI 1.1-3.1, p = 0.02), but not TypAng (OR1.1, 95% CI 0.7-1.6, p = 0.76) was associated with plaque in the proximal portions of coronary arteries. Neither symptom type was associated with differences in plaque burden nor composition. Both dyspnea and TypAng are associated with higher rates of obstructive CAD compared to those without dyspnea or TypAng, but only dyspnea is associated with coronary plaque in proximal vessel portions. Copyright © 2013 Elsevier Ireland Ltd. All rights reserved.

    Citation

    Rine Nakanishi, Jamal S Rana, Alan Rozanski, Victor Y Cheng, Heidi Gransar, Louise E J Thomson, Romalisa Miranda-Peats, Sean W Hayes, John D Friedman, Daniel S Berman, James K Min. Relationship of dyspnea vs. typical angina to coronary artery disease severity, burden, composition and location on coronary CT angiography. Atherosclerosis. 2013 Sep;230(1):61-6


    PMID: 23958253

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