scholarly journals Racial differences in the incidence of femoral bypass and abdominal aortic aneurysmectomy in Massachusetts: Relationship to cardiovascular risk factors

1995 ◽  
Vol 21 (3) ◽  
pp. 422-431 ◽  
Author(s):  
Wayne W. LaMorte ◽  
Thayer E. Scott ◽  
James O. Menzoian
2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
F Zhu ◽  
B Arshi ◽  
M Ikram ◽  
R De Knegt ◽  
M Kavousi

Abstract Introduction Abdominal aortic diameter has shown to be a marker of adverse cardiovascular outcomes. Among the non-aneurysmal populations, studies regarding abdominal aortic diameter normal reference values are sparse. Moreover, data regarding the associations between cardiovascular risk factors and aortic diameter among men and women are limited. Purpose To establish age- and sex-specific distribution of the infra-renal abdominal aortic diameters among non-aneurysmal older adults from the general population and to investigate the associations between cardiovascular risk factors and aortic diameters in men and women. Methods From a population-based cohort, 4032 participants (mean age, 67.2 years; 60.4% women) with infra-renal diameter assessment and without history of cardiovascular disease were included. Mean and quantile values of diameters were calculated in different age groups. Multiple linear regression analysis was used to detect the association of cardiovascular risk factors with diameters in men and women. Results The mean crude diameter was larger in men [mean (SD): 19.5 (2.6) mm] compared to women [17.0 (2.4)mm] but after adjustment for body surface area (BSA), the differences were small. There was a non-linear relationship between age and diameter (p<0.001). After 66 years of age, the increase in diameter with increasing age was attenuated. After age 74 years in women and 71 years in men, the relationship between age and infra-renal aortic diameter was no longer statistically significant (Figure). Waist [standardized β (95% CI): 0.02 (0.0–0.04) in women and 0.03 (0.01–0.06) in men] and diastolic blood pressure [0.04 (0.02–0.05) in women and 0.02 (0.0–0.04) in men] were the risk factors for diameters in both sexes. Body mass index [0.02 (0.01–0.09)], systolic blood pressure [−0.01 (−0.02 to −0.01)], smoking status [0.21 (0.02–0.39)], cholesterol [−0.19 (−0.29 to −0.09)], and lipid-lowering medication [−0.47 (−0.71 to −0.23)] were significantly associated with aortic diameter only in women. Conclusion The differences in the crude abdominal aortic diameter between women and men diminished after taking into account the BSA. The abdominal aortic diameter increased steeply with advancing age and up to 66 years of age. However, after 74 years in women and 71 years in men, the diameter values reached a plateau. We also observed sex differences in the associations of cardiovascular risk factors with abdominal aortic diameter. Funding Acknowledgement Type of funding source: Public Institution(s). Main funding source(s): Netherlands Organization for the Health Research and Development (ZonMw); the Research Institute for Diseases in the Elderly (RIDE)


2020 ◽  
Author(s):  
Yu Togashi ◽  
Jun Shirakawa ◽  
Daisuke Miyashita ◽  
Mayu Kyohara ◽  
Tomoko Okuyama ◽  
...  

Abstract Background: Little is known about the association between abdominal aortic calcification (AAC) and the risk of cardiovascular disease (CVD) among patients with diabetes. This study evaluated the cross-sectional association between AAC and CVD morbidity in patients with type 2 diabetes. Methods: This retrospective cross-sectional study enrolled 285 inpatients with type 2 diabetes. The lateral view of an abdominal X-ray image obtained while each subject was in a standing position was examined, and the AAC score and AAC length, corresponding to the area of calcific deposits in the anterior and posterior aortic wall for the L1-4 and L1-5 regions, respectively, were measured. The associations between the AAC scores and lengths and the presence of coronary artery disease (CAD), cerebral infarction (CI), and peripheral artery disease (PAD) were then assessed. The correlation between the AAC grades and other clinical factors were also evaluated. Results: The degree of AAC was significantly correlated with a higher prevalence of CAD and CI but not PAD after adjustments for cardiovascular risk factors. The AAC score was inversely correlated with BMI, and both the AAC score and the AAC length were correlated with the Fib-4 index; these correlations persisted after adjustments for cardiovascular risk factors and BMI, although AAC was not associated with ultrasonography-diagnosed fatty liver. Conclusion: AAC is associated with CAD and CI morbidity in patients with type 2 diabetes. AAC grading also predicts the Fib-4 index, a hepatic fibrosis marker, suggesting a novel potential predictor of liver disease that is independent of cardiovascular risk factors and obesity.


Author(s):  
Wendy Wang ◽  
Faye L. Norby ◽  
Michael J. Zhang ◽  
Jorge L. Reyes ◽  
Amil M. Shah ◽  
...  

Background Black Americans have more atrial fibrillation risk factors but lower atrial fibrillation risk than White Americans. Left atrial (LA) enlargement and/or dysfunction, frequent atrial tachycardia (AT), and premature atrial contractions (PAC) are associated with increased atrial fibrillation risk. Racial differences in these factors may exist that could explain the difference in atrial fibrillation risk. Methods and Results We included 2133 ARIC (Atherosclerosis Risk in Communities) study participants (aged 74±4.5 years[mean±SD], 59% women, 27% Black participants) who had echocardiograms in 2011 to 2013 and wore the Zio XT Patch (a 2‐week continuous heart monitor) in 2016 to 2017. Linear regression was used to analyze (1) differences in AT/day or PAC/hour between Black and White participants, (2) differences in LA measures between Black and White participants, and (3) racial differences in the association of LA measures with AT or PAC frequency. Compared with White participants, Black participants had a higher prevalence of cardiovascular risk factors and disease, lower AT frequency, greater LA size, and lower LA function. After multivariable adjustments, Black participants had 37% (95% CI, 24%–47%) fewer AT runs/day than White participants. No difference in PAC between races was noted. Greater LA size and reduced LA function are associated with more AT and PAC runs; however, no race interaction was present. Conclusions Differences in LA measures are unlikely to explain the difference in atrial fibrillation risk between Black and White individuals. Despite more cardiovascular risk factors and greater atrial remodeling, Black participants have lower AT frequency than White participants. Future research is needed to elucidate the protective mechanisms that confer resilience to atrial arrhythmias in Black individuals.


2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Whye Lian Cheah ◽  
Ching Thon Chang ◽  
Helmy Hazmi ◽  
Wan Manan Wan Muda

Objective. This study aimed to determine whether gender and ethnic differences had an effect on cardiovascular risk factors in overweight and obese rural adults in Sarawak. Design and Setting. This was a cross-sectional study conducted in rural communities in Kuching and Samarahan division, Malaysia. Data was obtained using a set of questionnaire (sociodemographic data and physical activity), measurement of blood pressure, height, weight (body mass index, BMI), body fat percentage, fasting blood sugar, and lipid profile from three ethnic groups—Iban, Malay, and Bidayuh. Analysis of data was done using SPSS version 23.0. Results. A total of 155 respondents participated in the study (81.6% response rate). The levels of physical activity, BMI status, body fat, hypercholesterolemia, and hyperglycemia were similar across the three ethnic groups and both females and males. Iban and Bidayuh had significant higher Atherogenic Index of Plasma (AIP) when compared to the Malay (Bidayuh OR = 0.30, 95% CI 0.12, 0.78; Iban OR = 0.29, 95% CI 0.12, 0.69). Conclusions. The relationship between cardiovascular risk factors varied according to ethnic groups and gender. A better understanding of these differences would help in the design and implementation of intervention programme for the prevention of cardiovascular disease.


Sign in / Sign up

Export Citation Format

Share Document