Abstract P165: Associations of Coronary Artery Calcium Volume and Density With Incident Heart Failure in the Multi-Ethnic Study of Atherosclerosis

Circulation ◽  
2018 ◽  
Vol 137 (suppl_1) ◽  
Author(s):  
Nketi I Forbang ◽  
Erin Michos ◽  
Sonia Ponce ◽  
Isac Thomas ◽  
Matthew Allison ◽  
...  

Background: Coronary artery calcium (CAC) predicts incident heart failure (HF) independent of cardiovascular disease (CVD) risk factors. In MESA, Components of CAC, volume and density, have opposite associations with incident CVD, such that for a given volume of CAC, higher CAC density is inversely associated with events. The relationship between CAC volume and density with HF is unknown. Methods: We studied 6814 participants in a multi-ethnic, community-based cohort, free from clinical CVD at recruitment. CAC volume and density were measured by non-contrast cardiac CT at the baseline exam (2000-2002). Adjudicated HF events were assessed through 2014, and analysis limited to those with imaging confirmation and estimated ejection fraction (EF). Cox proportional hazard was used to estimate independent associations of baseline CAC volume and density with incident HF: HF with reduced (< 50%), and preserved EF (HFrEF & HFpEF respectively). Results: The mean age was 62 + 10 years, 47% were men, 38% identified as European-, 28% as African-, 22% as Hispanic-, and 12% as Chinese-ethnicity. Average time to 189 HF events (119 HFrEF & 70 HFpEF) was 6.6 years. In unadjusted models, higher CAC volume (HR 1.27 [1.02-1.59], p=0.03), but not CAC density (HR 0.87 [0.67-1.13], p=0.29) was significantly associated with incident HF, non-significant associations were observed with HFrEF, or HFpEF, and no significant associations were observed for all three outcomes after adjustments for demographics and CVD risk factors (Table). Also, in unadjusted analyses, stratified by sex (p-value for interaction = 0.13), higher CAC volume was associated with increased risk for HF (HR 1.37 [1.03-1.81], p=0.03) and HFpEF (HR 1.76 [0.99-3.16], p=0.06), in males only. No significant associations were observed after adjustments. Conclusion: In a multi-ethnic cohort, CAC volume and density were not independently associated with HF, the trend for volume was positive while density was inverse. Low frequency of incident HF in our cohort was an important limitation.

Circulation ◽  
2017 ◽  
Vol 135 (suppl_1) ◽  
Author(s):  
Nketi I Forbang ◽  
Erin Michos ◽  
Matthew Allison ◽  
Isac Thomas ◽  
Robyn McClelland ◽  
...  

Coronary artery calcium (CAC) predicts future cardiovascular disease (CVD) events, including heart failure (HF), improves risk stratification beyond traditional CVD risk factors, and is associated with a higher left ventricular mass (LVM), a HF risk factor. Recent findings from the MESA have shown that for a given CAC volume, higher CAC density was inversely associated with incident CVD. It remains uncertain whether CAC volume and density associate differently with LVM. In a multi-ethnic cohort of community dwelling individuals free from clinical CVD at recruitment, we determined the independent cross-sectional associations of baseline CAC volume and density, measured by non-contrast cardiac CT, with LVM, measured by MRI. In 2432 participants with prevalent CAC (density can only be assessed in those with CAC > 0), the mean age was 66 ± 10 years, 59% were men, 50% were European-, 22% were African-, 20% were Hispanic-, and 13% were Chinese-Americans. Median (25-75 th ) CAC volume was 78 (23-259) mm 3 , mean CAC density was 2.7 ± 0.7, and mean LVM was 151 ± 41 grams. CAC density and natural log ( ln ) CAC volume were correlated (correlation coefficient=0.60, P-value < 0.01). Multivariable linear regression models investigated associations of ln (CAC volume) and CAC density with LVM. Model 1 adjusted for demographics (age, sex, and ethnicity) and body surface area. Model 2 included Model 1 plus CVD risk factors (smoking status, fasting glucose, total and HDL cholesterol, systolic blood pressure, and use of medications for hypertension, diabetes, and abnormal lipids). In fully adjusted models one log unit increase in CAC volume as associated with 1.7 gram increase in LVM (Beta = 1.7, 95% CI: 0.7 to 2.6, P < 0.01). In contrast, a unit increase in CAC density was associated with 1.9 gram decrease in LVM (Beta = -1.9, 95% CI: -3.9 to 0.1, P = 0.07). Higher CAC volume, but not CAC density, was cross-sectionally associated with higher LVM; a risk factor for HF. Higher calcium density of coronary artery plaques may not be a hazard for ischemic heart disease mediated increase in LVM. Future studies should determine independent associations of CAC volume and density with incident HF.


Heart ◽  
2017 ◽  
Vol 104 (2) ◽  
pp. 135-143 ◽  
Author(s):  
Isac C Thomas ◽  
Brandon Shiau ◽  
Julie O Denenberg ◽  
Robyn L McClelland ◽  
Philip Greenland ◽  
...  

ObjectivesRecently, the density score of coronary artery calcium (CAC) has been shown to be associated with a lower risk of cardiovascular disease (CVD) events at any level of CAC volume. Whether risk factors for CAC volume and CAC density are similar or distinct is unknown. We sought to evaluate the associations of CVD risk factors with CAC volume and CAC density scores.MethodsBaseline measurements from 6814 participants free of clinical CVD were collected for the Multi-Ethnic Study of Atherosclerosis. Participants with detectable CAC (n=3398) were evaluated for this study. Multivariable linear regression models were used to evaluate independent associations of CVD risk factors with CAC volume and CAC density scores.ResultsWhereas most CVD risk factors were associated with higher CAC volume scores, many risk factors were associated with lower CAC density scores. For example, diabetes was associated with a higher natural logarithm (ln) transformed CAC volume score (standardised β=0.44 (95% CI 0.31 to 0.58) ln-units) but a lower CAC density score (β=−0.07 (−0.12 to −0.02) density units). Chinese, African-American and Hispanic race/ethnicity were each associated with lower ln CAC volume scores (β=−0.62 (−0.83to −0.41), −0.52 (−0.64 to −0.39) and −0.40 (−0.55 to −0.26) ln-units, respectively) and higher CAC density scores (β= 0.41 (0.34 to 0.47), 0.18 (0.12 to 0.23) and 0.21 (0.15 to 0.26) density units, respectively) relative to non-Hispanic White.ConclusionsIn a cohort free of clinical CVD, CVD risk factors are differentially associated with CAC volume and density scores, with many CVD risk factors inversely associated with the CAC density score after controlling for the CAC volume score. These findings suggest complex associations between CVD risk factors and these components of CAC.


Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Ron C Li ◽  
Cheeling Chan ◽  
Allan Sniderman ◽  
Kiang Liu ◽  
Donald Lloyd-Jones ◽  
...  

Introduction: High ApoB has been shown to predict cardiovascular disease (CVD) in adults even in the context of low LDL-C. It is not known, however, if high ApoB and high ApoB, low LDL-C discordance in young adults are associated with coronary artery calcium (CAC) in mid-life. Methods: Data were derived from CARDIA, a multicenter study of the development and determinants of CVD risk factors in young adults recruited at ages 18 to 30. All participants with complete baseline CVD risk factor data, ApoB, and year-25 CAC score were included in this study. Baseline lipid fractions and ApoB were measured by standard assays. Year-25 CAC was assessed using two consecutive CT scans with presence of CAC defined as having a positive, non-zero Agatston score using the average of two scans. Baseline ApoB values were divided into tertiles. Four mutually exclusive concordant/discordant groups were created based on median ApoB and LDL-C. Logistic regression was performed for unadjusted and adjusted models. Results: 3496 participants were included [mean age=25±3.6, BMI=24.5±5Kg/m2, 44.4% male, and the following mean lipid values (mg/dL): total cholesterol=177.3±33.1, LDL-C=109.9±31.1, HDL-C=53±12.8, ApoB=90.7±24, median triglycerides=61(IQR 46-83)]. Compared with the lowest ApoB tertile, the middle [OR=1.55 (95% CI 1.22-1.95)] and high [OR=2.35 (95% CI 1.87-2.97)] tertiles exhibited increased odds of developing year-25 CAC in traditional risk factor-adjusted models. High ApoB, low LDL-C discordance was also associated with year-25 CAC in adjusted models [OR=1.57 (95% CI 1.12-2.20)]. Conclusions: These data suggest a dose-response association between ApoB in young adults and presence of mid-life CAC independent of baseline traditional CVD risk factors. High ApoB, low LDL-C discordance was also associated with year-25 CAC, suggesting that ApoB in young adults may help identify individuals with modest LDL-C levels who are at increased risk for subclinical atherosclerosis in mid-life.


2021 ◽  
Vol 22 (Supplement_1) ◽  
Author(s):  
T Heseltine ◽  
SW Murray ◽  
RL Jones ◽  
M Fisher ◽  
B Ruzsics

Abstract Funding Acknowledgements Type of funding sources: None. onbehalf Liverpool Multiparametric Imaging Collaboration Background Coronary artery calcium (CAC) score is a well-established technique for stratifying an individual’s cardiovascular disease (CVD) risk. Several well-established registries have incorporated CAC scoring into CVD risk prediction models to enhance accuracy. Hepatosteatosis (HS) has been shown to be an independent predictor of CVD events and can be measured on non-contrast computed tomography (CT). We sought to undertake a contemporary, comprehensive assessment of the influence of HS on CAC score alongside traditional CVD risk factors. In patients with HS it may be beneficial to offer routine CAC screening to evaluate CVD risk to enhance opportunities for earlier primary prevention strategies. Methods We performed a retrospective, observational analysis at a high-volume cardiac CT centre analysing consecutive CT coronary angiography (CTCA) studies. All patients referred for investigation of chest pain over a 28-month period (June 2014 to November 2016) were included. Patients with established CVD were excluded. The cardiac findings were reported by a cardiologist and retrospectively analysed by two independent radiologists for the presence of HS. Those with CAC of zero and those with CAC greater than zero were compared for demographic and cardiac risks. A multivariate analysis comparing the risk factors was performed to adjust for the presence of established risk factors. A binomial logistic regression model was developed to assess the association between the presence of HS and increasing strata of CAC. Results In total there were 1499 patients referred for CTCA without prior evidence of CVD. The assessment of HS was completed in 1195 (79.7%) and CAC score was performed in 1103 (92.3%). There were 466 with CVD and 637 without CVD. The prevalence of HS was significantly higher in those with CVD versus those without CVD on CTCA (51.3% versus 39.9%, p = 0.007). Male sex (50.7% versus 36.1% p= &lt;0.001), age (59.4 ± 13.7 versus 48.1 ± 13.6, p= &lt;0.001) and diabetes (12.4% versus 6.9%, p = 0.04) were also significantly higher in the CAC group compared to the CAC score of zero. HS was associated with increasing strata of CAC score compared with CAC of zero (CAC score 1-100 OR1.47, p = 0.01, CAC score 101-400 OR:1.68, p = 0.02, CAC score &gt;400 OR 1.42, p = 0.14). This association became non-significant in the highest strata of CAC score. Conclusion We found a significant association between the increasing age, male sex, diabetes and HS with the presence of CAC. HS was also associated with a more severe phenotype of CVD based on the multinomial logistic regression model. Although the association reduced for the highest strata of CAC (CAC score &gt;400) this likely reflects the overall low numbers of patients within this group and is likely a type II error. Based on these findings it may be appropriate to offer routine CVD risk stratification techniques in all those diagnosed with HS.


Circulation ◽  
2013 ◽  
Vol 127 (suppl_12) ◽  
Author(s):  
Lisa B VanWagner ◽  
Christina M Shay ◽  
Hongyan Ning ◽  
John Wilkins ◽  
Cora E Lewis ◽  
...  

Background: Nonalcoholic Fatty Liver Disease (NAFLD) and excess visceral adipose tissue (VAT) are associated with cardiovascular disease (CVD). Recent studies suggest that NAFLD and coronary artery calcification (CAC) are related independent of VAT. In a population-based cross-sectional sample of black and white adults free from prevalent liver or heart disease, we tested the hypothesis that NAFLD is associated with the presence of CAC and abdominal aortoiliac calcification (AAC) independent of VAT and other CVD risk factors. Methods: Participants from the Coronary Artery Risk Development in Young Adults study (Y25 exam) with concurrent computed tomography quantification of liver fat, CAC and AAC were included (n=2,163). NAFLD was defined as liver attenuation ≤ 40 Hounsfield Units after exclusion of other causes of liver fat (medication/alcohol use). Using the Agatston method, CAC/AAC presence was defined as a score > 0. Logistic regression models were used to calculate odds ratios and 95% confidence intervals. Results: Participant age was 49.9 (3.7) years and the sample was equally distributed by sex (55.6% female) and race (50.1% black). Mean BMI was 30.6 (7.1). The CAC and AAC prevalence was 26.5% and 49.6%. NAFLD prevalence was 9.6%. NAFLD participants were 50.1 (3.7) years old and more likely to be male (59.8% vs. 51.7%, p<0.0001), white (56.5% vs. 49.3%, p<0.05) and have the metabolic syndrome (70.1% vs. 22.6%, p<0.0001) than those with no NAFLD. They were also more likely to have CAC (37.2%) and AAC (60.9%) than those with no NAFLD (25.4% and 49.4%, respectively). In multivariable analyses adjusted for demographics and health behaviors, NAFLD was associated with the presence of CAC and AAC (Table 1). This association was attenuated after adjustment for CVD risk factors and VAT. Effect modification by race and sex was not statistically significant. Conclusion: In contrast to prior studies, our results suggest that the relationship between NAFLD and subclinical CVD is mediated by the presence of other CVD risk factors.


ESC CardioMed ◽  
2018 ◽  
pp. 2887-2892
Author(s):  
Nizal Sarrafzadegan ◽  
Farzad Masoudkabir

Significant variation is evident among different ethnicities regarding the prevalence, awareness, severity, treatment, and complications of major cardiovascular disease (CVD) risk factors. Relative to white Europeans, stroke mortality is almost doubled in South Asians and Afro-Caribbeans; however, when coronary artery disease mortality is considered, it is high in South Asians and low in Afro-Caribbeans. Hypertension is more common, severe, and is associated with higher rates of morbidity and mortality in black people than white people. Diabetes is more prevalent and less controlled in South Asians which leads to a nearly fourfold higher cardiovascular mortality in South Asians than other ethnic groups. Furthermore, South Asians suffer from a highly atherogenic lipid profile. In contrast, black people are generally known for their higher high-density lipoprotein and lower triglyceride levels than white people which seem to play a major role in protecting them from coronary artery disease. For a given waist circumference, Asian, black, and Caucasian people show different levels of intra-abdominal adiposity and CVD risk. Hence, the joint definition from five major organizations in 2009 of the metabolic syndrome set ethnic-specific values of waist circumference to define central obesity. Black Caribbean men have the highest rates of current smoking among all ethnic groups in the United Kingdom while nearly all South Asian and black African women are never-smokers. Varied genetic and lifestyle-related risk factors and their interactions seem to be responsible for the ethnic differences in CVD risk factors. There is a clear need for ethnic-specific guidelines for diagnosis and treatment of major CVD risk factors to maximize the outcomes of preventive strategies.


Circulation ◽  
2020 ◽  
Vol 141 (7) ◽  
pp. 592-599 ◽  
Author(s):  
Anandita Agarwala ◽  
Erin D. Michos ◽  
Zainab Samad ◽  
Christie M. Ballantyne ◽  
Salim S. Virani

Cardiovascular disease (CVD) is the leading cause of death among women in the United States. As compared with men, women are less likely to be diagnosed appropriately, receive preventive care, or be treated aggressively for CVD. Sex differences between men and women have allowed for the identification of CVD risk factors and risk markers that are unique to women. The 2018 American Heart Association/American College of Cardiology Multi-Society cholesterol guideline and 2019 American College of Cardiology/American Heart Association guideline on the primary prevention of CVD introduced the concept of risk-enhancing factors that are specific to women and are associated with an increased risk of incident atherosclerotic CVD in women. These factors, if present, would favor more intensified lifestyle interventions and consideration of initiation or intensification of statin therapy for primary prevention to mitigate the increased risk. In this primer, we highlight sex-specific CVD risk factors in women, stress the importance of eliciting a thorough obstetrical and gynecological history during cardiovascular risk assessment, and provide a framework for how to initiate appropriate preventive measures when sex-specific risk factors are present.


2020 ◽  
pp. bjophthalmol-2019-315333
Author(s):  
Juan E Grunwald ◽  
Maxwell Pistilli ◽  
Gui-Shuang Ying ◽  
Maureen G Maguire ◽  
Ebenezer Daniel ◽  
...  

PurposeChronic kidney disease (CKD) patients often develop cardiovascular disease (CVD) and retinopathy. The purpose of this study was to assess the association between progression of retinopathy and concurrent incidence of CVD events in participants with CKD.DesignWe assessed 1051 out of 1936 participants in the Chronic Renal Insufficiency Cohort Study that were invited to have fundus photographs obtained at two timepoints separated by 3.5 years, on average.MethodsUsing standard protocols, presence and severity of retinopathy (diabetic, hypertensive or other) and vessel diameter calibre were assessed at a retinal image reading centre by trained graders masked to study participants’ information. Participants with a self-reported history of CVD were excluded. Incident CVD events were physician adjudicated using medical records and standardised criteria. Kidney function and proteinuria measurements along with CVD risk factors were obtained at study visits.ResultsWorsening of retinopathy by two or more steps in the EDTRS retinopathy grading scale was observed in 9.8% of participants, and was associated with increased risk of incidence of any CVD in analysis adjusting for other CVD and CKD risk factors (OR 2.56, 95% CI 1.25 to 5.22, p<0.01). After imputation of missing data, these values were OR=1.66 (0.87 to 3.16), p=0.12.ConclusionProgression of retinopathy is associated with higher incidence of CVD events, and retinal-vascular pathology may be indicative of macrovascular disease even after adjustment for kidney diseases and CVD risk factors. Assessment of retinal morphology may provide important information when assessing CVD in patients with CKD.


2017 ◽  
Vol 42 (3) ◽  
pp. 326-332 ◽  
Author(s):  
Parvin Mirmiran ◽  
Zahra Bahadoran ◽  
Azita Zadeh Vakili ◽  
Fereidoun Azizi

Limited data are available regarding the association of major dietary patterns and risk of cardiovascular disease (CVD) in Middle Eastern countries. We aimed to evaluate the association of major dietary patterns, using factor analysis, with the risk of CVD. Participants without CVD (n = 2284) were recruited from the Tehran Lipid and Glucose Study and were followed for a mean of 4.7 years. Dietary intake of participants was assessed at baseline (2006–2008); biochemical variables were evaluated at baseline and follow-up examination. Multivariate Cox proportional hazard regression models, adjusted for potential confounders, were used to estimate risk of CVD across tertiles of dietary pattern scores. Linear regression models were used to indicate association of dietary pattern scores with changes of CVD risk factors over the study period. Two major dietary patterns, Western and traditional, were identified. During a mean 4.7 ± 1.4 years of follow-up, 57 participants experienced CVD-related events. In the fully adjusted model, we observed an increased risk of CVD-related events in the highest compared to the lowest tertile category of Western dietary pattern score (HR = 2.07, 95% CI = 1.03–4.18, P for trend = 0.01). Traditional dietary pattern was not associated with incidence of CVD or CVD risk factors. A significant association was observed between the Western dietary pattern and changes in serum insulin (β = 5.88, 95% CI = 0.34–11.4). Our findings confirm that the Western dietary pattern, characterized by higher loads of processed meats, salty snacks, sweets, and soft drinks, is a dietary risk factor for CVD in the Iranian population.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
C Van Der Aalst ◽  
S.J.A.M Denissen ◽  
M Vonder ◽  
J.-W.C Gratema ◽  
H.J Adriaansen ◽  
...  

Abstract Aims Screening for a high cardiovascular disease (CVD) risk followed by preventive treatment can potentially reduce coronary heart disease (CHD)-related morbidity and mortality. ROBINSCA (Risk Or Benefit IN Screening for CArdiovascular disease) is a population-based randomized controlled screening trial that investigates the effectiveness of CVD screening in asymptomatic participants using the Systematic COronary Risk Evaluation (SCORE) model or Coronary Artery Calcium (CAC) scoring. This study describes the distributions in risk and treatment in the ROBINSCA trial. Methods and results Individuals at expected elevated CVD risk were randomized (1:1:1) into the control arm (n=14,519; usual care); screening arm A (n=14,478; SCORE, 10-year fatal and non-fatal risk); or screening arm B (n=14,450; CAC scoring). Preventive treatment was largely advised according to current Dutch guidelines. Risk and treatment differences between the screening arms were analysed. 12,185 participants (84.2%) in arm A and 12,950 (89.6%) in arm B were screened. 48.7% were women, and median age was 62 (InterQuartile Range 10) years. SCORE screening identified 45.1% at low risk (SCORE&lt;10%), 26.5% at intermediate risk (SCORE 10–20%), and 28.4% at high risk (SCORE≥20%). According to CAC screening, 76.0% were at low risk (Agatston&lt;100), 15.1% at high risk (Agatston 100–399), and 8.9% at very high risk (Agatston≥400). CAC scoring significantly reduced the number of individuals indicated for preventive treatment compared to SCORE (relative reduction women: 37.2%; men: 28.8%). Conclusion We showed that compared to risk stratification based on SCORE, CAC scoring classified significantly fewer men and women at increased risk, and less preventive treatment was indicated. ROBINSCA flowchart Funding Acknowledgement Type of funding source: Public grant(s) – EU funding. Main funding source(s): Advanced Research Grant


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