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The International Journal of Cardiovascular Imaging

Published in:

01-06-2017 | Original Paper

Subclinical atherosclerosis detected by coronary computed tomographic angiography in Qatar: a comparison between Qataris and south Asian migrants

Authors: Joshua Schulman-Marcus, Ran Heo, Heidi Gransar, Jassim Al Suwaidi, Maryam Alkuwari, Kimberly Elmore, Mille J. Gomez, Amin Jayyousi, Mahmoud Zirie, James K. Min, Jessica M. Peña

Published in: The International Journal of Cardiovascular Imaging | Issue 6/2017

Abstract

Purpose

There are limited data regarding subclinical atherosclerosis in Middle Eastern countries. We aimed to describe and compare coronary computed tomographic angiography (CCTA) findings in Qatari native and South Asian migrants at increased risk of coronary artery disease (CAD).

Methods

We performed CCTA in 251 consecutive volunteers (126 South Asian, 125 Qatari, mean age 50.0 ± 7.3 years, 27.1% female) at increased risk of cardiovascular disease. Given differences in baseline risk factors, we employed propensity score matching to create a cohort of 162 subjects for comparative analyses. We compared CAD severity, extent, plaque morphology, adverse plaque characteristics, and quantitative measures of atherosclerotic burden in both subgroups.

Results

After matching, no CAD was seen in 58.0% of South Asians and 49.4% of Qataris (p = 0.3), while obstructive CAD (≥50% luminal stenosis) was present in 40.7% of South Asians and 49.4% of Qataris (p = 0.3). There was a high prevalence of adverse plaque characteristics in both ethnicities, particularly positive remodeling. South Asians had significantly smaller vessel and lumen volumes, but the percent aggregate plaque volumes were not significantly different (2.9 ± 6.3% vs. 3.8 ± 8.0%, p = 0.4).

Conclusions

In this first study of CCTA findings performed in a Middle Eastern country, we observed a high prevalence of obstructive CAD in a middle-aged cohort. There were no significant differences in CCTA findings between Qataris and South Asians after adjustment for clinical risk factors. Future studies are needed to identify patterns of coronary atherosclerosis by CCTA in non-European populations where cardiovascular disease is increasingly prevalent.

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Title: Subclinical atherosclerosis detected by coronary computed tomographic angiography in Qatar: a comparison between Qataris and south Asian migrants
Authors: Joshua Schulman-Marcus
Ran Heo
Heidi Gransar
Jassim Al Suwaidi
Maryam Alkuwari
Kimberly Elmore
Mille J. Gomez
Amin Jayyousi
Mahmoud Zirie
James K. Min
Jessica M. Peña
Publication date: 01-06-2017
Publisher: Springer Netherlands
Published in: The International Journal of Cardiovascular Imaging / Issue 6/2017
Print ISSN: 1569-5794
Electronic ISSN: 1875-8312
DOI: https://doi.org/10.1007/s10554-017-1073-7

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Subclinical atherosclerosis detected by coronary computed tomographic angiography in Qatar: a comparison between Qataris and south Asian migrants

Abstract

Purpose

Methods

Results

Conclusions

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Abstract

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