4.7 Article

Epicardial adipose tissue volume and myocardial ischemia in asymptomatic people living with diabetes: a cross-sectional study

期刊

CARDIOVASCULAR DIABETOLOGY
卷 20, 期 1, 页码 -

出版社

BMC
DOI: 10.1186/s12933-021-01420-5

关键词

Computed tomography; Coronary artery calcification; Diabetes; Epicardial adipose tissue; Epicardial fat tissue; Myocardial ischemia; Visceral fat

资金

  1. Assistance Publique-Hopitaux de Paris and Paris 13 University

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Epicardial adipose tissue (EAT) is considered a novel diagnostic marker for cardiometabolic disease. This study found that EAT volume is positively correlated with age, body mass index, and triglyceridemia, but negatively correlated with HbA1c, HDL- and LDL-cholesterol levels in asymptomatic people living with diabetes. While EAT may play a role in coronary atherosclerosis and coronary circulation in patients with diabetes, it is not a better marker for discriminating the risk of asymptomatic myocardial ischemia than classic clinical data.
Background Epicardial adipose tissue (EAT) is considered a novel diagnostic marker for cardiometabolic disease. This study aimed to evaluate whether EAT volume was associated with stress-induced myocardial ischemia in asymptomatic people living with diabetes-independently of confounding factors-and whether it could predict this condition. Methods We included asymptomatic patients with diabetes and no coronary history, who had undergone both a stress a myocardial scintigraphy to diagnose myocardial ischemia, and a computed tomography to measure their coronary artery calcium (CAC) score. EAT volume was retrospectively measured from computed tomography imaging. Determinants of EAT volume and asymptomatic myocardial ischemia were evaluated. Results The study population comprised 274 individuals, including 153 men. Mean (+/- standard deviation) age was 62 +/- 9 years, and 243, 23 and 8 had type 2, type 1, or another type of diabetes, respectively. Mean body mass index was 30 +/- 6 kg/m(2), and mean EAT volume 96 +/- 36 cm(3). Myocardial ischemia was detected in 32 patients (11.7%). EAT volume was positively correlated with age, body mass index and triglyceridemia, but negatively correlated with HbA1c, HDL- and LDL-cholesterol levels. Furthermore, EAT volume was lower in people with retinopathy, but higher in men, in current smokers, in patients with nephropathy, those with a CAC score > 100 Agatston units, and finally in individuals with myocardial ischemia (110 +/- 37 cm(3) vs 94 +/- 37 cm(3) in those without myocardial ischemia, p < 0.05). The association between EAT volume and myocardial ischemia remained significant after adjustment for gender, diabetes duration, peripheral macrovascular disease and CAC score. We also found that area under the ROC curve analysis showed that EAT volume (AROC: 0.771 [95% confidence interval 0.683-0.858]) did not provide improved discrimination of myocardial ischemia over the following classic factors: gender, diabetes duration, peripheral macrovascular disease, retinopathy, nephropathy, smoking, atherogenic dyslipidemia, and CAC score (AROC 0.773 [0.683-0.862]). Conclusions EAT may play a role in coronary atherosclerosis and coronary circulation in patients with diabetes. However, considering EAT volume is not a better marker for discriminating the risk of asymptomatic myocardial ischemia than classic clinical data.

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