Wei-Ting Wang1,2, Pai-Feng Hsu1,3,2, Chung-Chi Lin1,2, Yuan-Jen Wang1,2, Yaw-Zon Ding1,2, Teh-Ling Liou1,2, Ying-Wen Wang1,2, Shao-Sung Huang1,3,2, Tse-Min Lu1,3,2, Po-Hsun Huang1,2,4, Jaw-Wen Chen3,5,6,7, Wan-Leong Chan1,3,2, Shing-Jong Lin1,3,6,4, Hsin-Bang Leu1,3,2,6,4. 1. Division of Cardiology, Department of Medicine, Taipei Veterans General Hospital. 2. School of Medicine, National Yang-Ming University. 3. Healthcare and Management Center, Taipei Veterans General Hospital. 4. Institute of Clinical Medicine, National Yang-Ming University. 5. Department of Medical Research, Taipei Veterans General Hospital. 6. Cardiovascular Research Center, National Yang-Ming University. 7. Institute of Pharmacology, National Yang-Ming University.
Abstract
AIM: Coronary atherosclerotic plaques can be detected in asymptomatic subjects and are related to low-density lipoprotein cholesterol (LDL) levels in patients with coronary artery disease. However, researchers have not yet determined the associations between various plaque characteristics and other lipid parameters, such as HDL-C and TG levels, in low-risk populations. METHODS: One thousand sixty-four non-diabetic subjects (age, 57.86±9.73 years; 752 males) who underwent coronary computed tomography angiography (CCTA) were enrolled and the severity and patterns of atherosclerotic plaques were analyzed. RESULTS: Statin use was reported by 25% of the study population, and subjects with greater coronary plaque involvement (segment involvement score, SIS) were older and had a higher body mass index (BMI), blood pressure, unfavorable lipid profiles and comorbidities. After adjusting for comorbidities, only age (β=0.085, p＜0.001), the male gender (β=1.384, p＜0.001), BMI (β=0.055, p=0.019) and HbA1C levels (β=0.894, p＜0.001) were independent factors predicting the greater coronary plaque involvement in non-diabetic subjects. In the analysis of significantly different (＞50%) stenosis plaque patterns, age (OR: 1.082, 95% CI: 10.47-1.118) and a former smoking status (OR: 2.061, 95% CI: 1.013-4.193) were independently associated with calcified plaques. For partial calcified (mixed type) plaques, only age (OR: 1.085, 95% CI: 1.052-1.119), the male gender (OR: 7.082, 95% CI: 2.638-19.018), HbA1C levels (OR: 2.074, 95% CI: 1.036-4.151), and current smoking status (OR: 1.848, 95% CI: 1.089-3.138) were independently associated with the risk of the presence of significant stenosis in mixed plaques. CONCLUSIONS: A higher HbA1c levels is independently associated with the presence and severity of coronary artery atherosclerosis in non-diabetic subjects, even when LDL-C levels are tightly controlled.
AIM: Coronary atherosclerotic plaques can be detected in asymptomatic subjects and are related to low-density lipoprotein cholesterol (LDL) levels in patients with coronary artery disease. However, researchers have not yet determined the associations between various plaque characteristics and other lipid parameters, such as HDL-C and TG levels, in low-risk populations. METHODS: One thousand sixty-four non-diabetic subjects (age, 57.86±9.73 years; 752 males) who underwent coronary computed tomography angiography (CCTA) were enrolled and the severity and patterns of atherosclerotic plaques were analyzed. RESULTS: Statin use was reported by 25% of the study population, and subjects with greater coronary plaque involvement (segment involvement score, SIS) were older and had a higher body mass index (BMI), blood pressure, unfavorable lipid profiles and comorbidities. After adjusting for comorbidities, only age (β=0.085, p＜0.001), the male gender (β=1.384, p＜0.001), BMI (β=0.055, p=0.019) and HbA1C levels (β=0.894, p＜0.001) were independent factors predicting the greater coronary plaque involvement in non-diabetic subjects. In the analysis of significantly different (＞50%) stenosis plaque patterns, age (OR: 1.082, 95% CI: 10.47-1.118) and a former smoking status (OR: 2.061, 95% CI: 1.013-4.193) were independently associated with calcified plaques. For partial calcified (mixed type) plaques, only age (OR: 1.085, 95% CI: 1.052-1.119), the male gender (OR: 7.082, 95% CI: 2.638-19.018), HbA1C levels (OR: 2.074, 95% CI: 1.036-4.151), and current smoking status (OR: 1.848, 95% CI: 1.089-3.138) were independently associated with the risk of the presence of significant stenosis in mixed plaques. CONCLUSIONS: A higher HbA1c levels is independently associated with the presence and severity of coronary artery atherosclerosis in non-diabetic subjects, even when LDL-C levels are tightly controlled.
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