BACKGROUND: Early detection of atherosclerosis in elderly people is important because of high cardiovascular mortality. However, only few studies have evaluated the prevalence of subclinical atherosclerosis in Asian elderly people. We evaluated subclinical atherosclerosis using various methods in a population-based cohort study, the Korean Longitudinal Study on Health and Aging (KLoSHA). METHODS: Subjects aged over 65 years without symptomatic chest pain were recruited for the KLoSHA in 2006 by random stratified sampling (439 men and 561 women). Anthropometrics, biochemical parameters, body composition, and abdominal fat by computed tomography (CT) were measured. Multidetector-row cardiac CT for coronary artery calcium score (CACS) and severity of stenosis, and carotid sonography for intima-media thickness (IMT) were used to detect subclinical atherosclerosis. Pulse wave velocity (PWV) and ankle-brachial index (ABI) were also measured. RESULTS: The prevalence of subclinical atherosclerosis defined by coronary stenosis >50%, CACS >100, PWV >9m/s, carotid-IMT >0.8mm, or ABI <0.9 was 17.6%, 28.1%, 37.9%, 39.2%, and 29.6%, respectively. There were significant, but modest correlations among parameters. Although male sex, diabetes mellitus, hypertension, abnormal BMI, and higher insulin resistance were associated with subclinical atherosclerosis, older age was found to be the most robust predictor after controlling for multiple factors. CONCLUSION: Our results suggest that proactive screening with multiple measurements in elderly subjects, particularly in men and those with diabetes mellitus or hypertension, may help to identify asymptomatic patient with atherosclerosis. Further studies exploring the predictive value of diagnostic tools can determine the most appropriate measurement for predicting future cardiovascular events.
BACKGROUND: Early detection of atherosclerosis in elderly people is important because of high cardiovascular mortality. However, only few studies have evaluated the prevalence of subclinical atherosclerosis in Asian elderly people. We evaluated subclinical atherosclerosis using various methods in a population-based cohort study, the Korean Longitudinal Study on Health and Aging (KLoSHA). METHODS: Subjects aged over 65 years without symptomatic chest pain were recruited for the KLoSHA in 2006 by random stratified sampling (439 men and 561 women). Anthropometrics, biochemical parameters, body composition, and abdominal fat by computed tomography (CT) were measured. Multidetector-row cardiac CT for coronary artery calcium score (CACS) and severity of stenosis, and carotid sonography for intima-media thickness (IMT) were used to detect subclinical atherosclerosis. Pulse wave velocity (PWV) and ankle-brachial index (ABI) were also measured. RESULTS: The prevalence of subclinical atherosclerosis defined by coronary stenosis >50%, CACS >100, PWV >9m/s, carotid-IMT >0.8mm, or ABI <0.9 was 17.6%, 28.1%, 37.9%, 39.2%, and 29.6%, respectively. There were significant, but modest correlations among parameters. Although male sex, diabetes mellitus, hypertension, abnormal BMI, and higher insulin resistance were associated with subclinical atherosclerosis, older age was found to be the most robust predictor after controlling for multiple factors. CONCLUSION: Our results suggest that proactive screening with multiple measurements in elderly subjects, particularly in men and those with diabetes mellitus or hypertension, may help to identify asymptomatic patient with atherosclerosis. Further studies exploring the predictive value of diagnostic tools can determine the most appropriate measurement for predicting future cardiovascular events.
Authors: Tobias A Fuchs; Michael Fiechter; Cathérine Gebhard; Julia Stehli; Jelena R Ghadri; Egle Kazakauskaite; Bernhard A Herzog; Lars Husmann; Oliver Gaemperli; Philipp A Kaufmann Journal: Int J Cardiovasc Imaging Date: 2012-10-02 Impact factor: 2.357
Authors: P Arner; J Bäckdahl; P Hemmingsson; P Stenvinkel; D Eriksson-Hogling; E Näslund; A Thorell; D P Andersson; K Caidahl; M Rydén Journal: Int J Obes (Lond) Date: 2014-07-08 Impact factor: 5.095
Authors: Ei Ei Khaing Nang; Rob M van Dam; Chuen Seng Tan; Falk Mueller-Riemenschneider; Yi Ting Lim; Kai Zhi Ong; Siqing Ee; Jeannette Lee; E Shyong Tai Journal: PLoS One Date: 2015-07-01 Impact factor: 3.240
Authors: Sun Joon Moon; Eun Ju Chun; Yeonyee E Yoon; Kyong Soo Park; Hak Chul Jang; Soo Lim Journal: J Am Heart Assoc Date: 2019-11-22 Impact factor: 5.501