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KMID : 1141520230380050568
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Endocrinology and Metabolism
2023 Volume.38 No. 5 p.568 ~ p.577
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Coronary Artery Calcium Score as a Sensitive Indicator of Cardiovascular Disease in Patients with Type 2 Diabetes Mellitus: A Long-Term Cohort Study
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Koo Dae-Jeong
Lee Mi-Yeon
Moon Sun-Joon
Kwon Hye-Mi
Lee Sang-Min
Park Se-Eun
Park Cheol-Young
Lee Won-Young
Lee Eun-Ji
Cho Sung-Rae
Jeong Young-Hoon
Rhee Eun-Jung
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Abstract
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Background : Coronary artery calcium score (CACS) has become an important tool for evaluating cardiovascular disease (CVD). This study evaluated the significance of CACS for future CVD through more than 10 years of follow-up in asymptomatic Korean populations with type 2 diabetes mellitus (T2DM) known to have a relatively low CACS burden.
Methods : We enrolled 981 asymptomatic T2DM patients without CVD at baseline who underwent CACS evaluation using multidetector computed tomography between January 2008 and December 2014. They were grouped into five predefined CACS categories based on Agatston scores and followed up by August 2020. The primary endpoint was incident CVD events, including coronary, cerebrovascular, and peripheral arterial disease.
Results : The relative risk of CVD was significantly higher in patients with CACS ≥10, and the significance persisted after adjustment for known confounders. A higher CACS category indicated a higher incidence of future CVD: hazard ratio (95% confidence interval) 4.09 (1.79 to 9.36), 12.00 (5.61 to 25.69), and 38.79 (16.43 to 91.59) for 10≤ CACS <100, 100≤ CACS <400, and CACS ≥400, respectively. During the 12-year follow-up period, the difference in event-free survival more than doubled as the category increased. Patients with CACS below 10 had very low CVD incidence throughout the follow-up. The receiver operating characteristic analysis showed better area under curve when the CACS cutoff was 10 than 100.
Conclusion : CACS can be a sensitive marker of CVD risk. Specifically, CACS above 10 is an indicator of CVD high-risk
requiring more intensive medical treatment in Koreans with T2DM.
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KEYWORD
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Coronary artery calcium score, Diabetes mellitus, type 2, Cardiovascular diseases, Atherosclerosis, Cohort studies
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