Impact of location of epicardial adipose tissue, measured by coronary artery calcium-scoring computed tomography on obstructive coronary artery disease

Fu Zong Wu, Yi Luan Huang, Yen Chi Wang, Huey Shyan Lin, Chien Shung Chen, Yu Jen Ju, Kuan Rau Chiou, Chin Chang Cheng, Ming Ting Wu

研究成果: 雜誌貢獻文章

17 引文 斯高帕斯(Scopus)

摘要

Epicardial adipose tissue (EAT) is considered to play a role in the pathogenesis of coronary atherosclerosis. However, whether total EAT volume or location-specific EAT thickness may be a better predictor of obstructive coronary artery disease (CAD) is inconclusive. We investigated whether the total volume or location-specific thickness of EAT measured on computed tomography (CT) could be a useful marker of CAD on top of clinical risk factors and Agatston score. Two hundred eight consecutive subjects with clinical suspicion of CAD receiving coronary arterial calcium (CAC)-scoring CT and CT coronary angiography were retrospectively divided into 2 groups: an obstructive CAD group (n = 97) and a nonobstructive CAD group (n = 111). Total EAT volume and EAT thicknesses at different locations were measured on CAC-scoring CT. Left atrioventricular groove (AVG) EAT thickness was the sole EAT measurement that showed association with increasing number of vessels exhibiting ≥50% stenosis (p for trend <0.001). Logistic regression showed that left AVG EAT thickness was the most important EAT predictor of obstructive CAD (odds ratio 1.16, 95% confidence interval 1.04 to 1.29, p = 0.006; optimal threshold ≥15 mm, odds ratio 4.62, 95% confidence interval 2.24 to 9.56, p <0.001). Adding left AVG EAT thickness on top of clinical risk factors plus Agatston score improved prediction of obstructive CAD (area under the curve from 0.848 to 0.912, p = 0.002). In conclusion, excessive left AVG EAT adiposity is an important risk factor for obstructive CAD, independent of clinical risk factors and Agatston score. However, further trials are needed in investigation of combined assessment of location-specific EAT thickness and Agatston score on CAC scan as to whether this biomarker could improve CAD risk stratification in the general population.
原文英語
頁(從 - 到)943-949
頁數7
期刊American Journal of Cardiology
112
發行號7
DOIs
出版狀態已發佈 - 十月 1 2013
對外發佈Yes

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ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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