Cardiovascular Risk In Adults Research Articles

Duration and degree of adiposity: effect on cardiovascular risk factors at early adulthood.

The effect of adiposity dynamics throughout adolescence on adult cardiometabolic outcomes is not well known. We aimed to assess the effect of duration and degree of adiposity from adolescence to early adulthood on blood pressure and insulin resistance at 24 years. We used data from 2253 participants evaluated at 13, 17, 21 and 24 years of age in the EPITeen cohort, Porto, Portugal. The area under the curve of body mass index (BMIAUC) was computed to summarize duration and degree of BMI for the 11-year period. Outcomes were systolic blood pressure (SBP) and insulin resistance at 24 years. The homeostasis model assessment of insulin resistance (HOMA-IR) was used as an indicator of insulin resistance and the variable was log-transformed. Associations between BMIAUC and each outcome were estimated by linear regression models. The median BMIAUC was 243.1 (223.9-268.6) kg m-2 in 11 years, corresponding to 22.1 kg m-2 on average per year. In crude analyses, both BMIAUC and BMI at 24 years were positively associated with SBP (β=0.096 mm Hg, 95% confidence interval (CI) 0.077; 0.115 for BMIAUC; β=4.616 mm Hg, 95% CI 3.082; 6.151 for BMI at 24 years) and ln HOMA-IR (β=0.004, 95% CI 0.003; 0.005 for BMIAUC; β=0.047, 95% CI 0.036; 0.057 for BMI at 24 years). After adjustment for confounders and for BMI at 24 years, the magnitude of the association of BMIAUC attenuated for both outcomes, mostly for SBP, but the association remained statistically significant. Results using standardized variables confirmed that both outcomes were more strongly associated with BMI at 24 years than with BMIAUC. In addition to the effect of adult attained BMI, cumulative exposure to higher BMI throughout adolescence, taking into account duration and degree, was also relevant for adult cardiovascular risk factors, mainly for insulin resistance.

Valores de presión arterial obtenidos en población adolescente de la Comunidad de Madrid: Tablas basadas en el estudio MEPAFAC

IntroductionHigh blood pressure (HBP) is a modifiable cardiovascular risk factor and its detection at early ages may allow strategies to be designed to reduce cardiovascular risk in adulthood. ObjectivesTo provide blood pressure (BP) values in a sample of adolescents using an electronic oscillometric device. Material and methodsBP was measured according the European Society of Hypertension guidelines using an oscillometric device. Height and weight were also measured. Four height groups were used in order to associate the 90, 95, and 99 percentiles with systolic BP (pSBP) and diastolic BP percentiles (pDBP) for sex and age: H150 (≤ 150cm), H160(151-160cm), H170(161-170cm), and H180(≥171cm). ResultsData from 2,758 students aged 12-17 years were included in the analysis.BP increases with age, with differences of up to 11mmHg in boys vs. 3mmHg in girls for SBP and 3mmHg vs. 1mmHg for DBP. In high SBP, for the younger adolescents, the difference related to height was 15mmHg in boys vs. 8mmHg in girls, with no significant increase in the older ones in either gender. The high BDP varied depending on the height, 10mmHg in younger boys and 3mmHg in older ones, while in girls the variation was 3mmHg for all ages. ConclusionsSBP/DBP in adolescents increases with age and also with height, giving similar figures in the taller ones, regardless of age.

Prevalence of Elevated Cardiovascular Risks in Young Adults.

Prevalence of Elevated Cardiovascular Risks in Young Adults.

Prevalence of Elevated Cardiovascular Risks in Young Adults: A Cross-sectional Analysis of National Health and Nutrition Examination Surveys.

The 2013 cholesterol management guidelines from the American College of Cardiology and American Heart Association (ACC/AHA) recommend lipid screening in all adults older than 20 years to identify those at increased risk for atherosclerotic cardiovascular disease (ASCVD). Statins may be considered for patients with elevated 10-year risk (>5%) or a low-density lipoprotein cholesterol (LDL-C) level of 4.92 mmol/L (190 mg/dL) or greater. To describe the prevalence of elevated ASCVD risk among nondiabetic adults younger than 50 years. Cross-sectional. NHANES (National Health and Nutrition Examination Survey), 1999 to 2000 through 2011 to 2012. Adults aged 30 to 49 years without known ASCVD or diabetes. 10-year ASCVD risk was estimated by using the 2013 ACC/AHA ASCVD risk calculator. Participants were subdivided by age, sex, and history of smoking and hypertension. The percentages of adults in each subgroup with a 10-year ASCVD risk greater than 5% and of those with an LDL-C level of 4.92 mmol/L (190 mg/dL) or greater were estimated. Low-prevalence subgroups were defined as those in which a greater than 1% prevalence of elevated cardiovascular risk could be ruled out (that is, the upper 95% confidence bound for prevalence was ≤1%). Overall, 9608 NHANES participants representing 67.9 million adults were included, with approximately half (47.12%, representing 32 million adults) in low-prevalence subgroups. In the absence of smoking or hypertension, 0.09% (95% CI, 0.02% to 0.35%) of adult men younger than 40 years and 0.04% (CI, 0.0% to 0.26%) of adult women younger than 50 years had an elevated risk. Among other subgroups, 0% to 75.9% of participants had an increased risk. Overall, 2.9% (CI, 2.3% to 3.5%) had an LDL-C level of 4.92 mmol/L (190 mg/dL) or greater. No information was available regarding cardiovascular outcomes. In the absence of risk factors, the prevalence of increased ASCVD risk is low among women younger than 50 and men younger than 40 years. None.

Greater Aortic Hemodynamic Responses to Muscle Metaboreflex Activation In Older Adults with Prediabetes than Diabetes

PURPOSE: Wave reflection measures (augmentation pressure [AP] and index [AIx]) are similarly increased in adults with type 2 diabetes (T2D) and prediabetes (PRET2D) suggesting high cardiovascular risk. An exaggerated blood pressure (BP) response to muscle metaboreflex activation induced via post-exercise muscle ischemia (PEMI) following isometric handgrip exercise has been reported in patients with T2D. The purpose of this study was to examine the wave reflection responses to PEMI in adults with PRET2D and T2D. METHODS: Aortic hemodynamics were obtained using pulse wave analysis at rest and during PEMI following isometric handgrip at 30% of maximal voluntary contraction in adults (age, 59.7 ± 6.3 y) with PRET2D (n= 12) and T2D (n= 12). RESULTS: Vascular parameters were similar at rest. Aortic systolic BP (PRET2D Δ42 ± 13 mmHg vs. T2D Δ31 ± 10 mmHg, P < 0.001 for both), pulse pressure (PRET2D Δ22± 9 mmHg vs. T2D Δ13 ± 10 mmHg, P < 0.001 and P < 0.01, respectively) and AP (PRET2D Δ13 ± 5 mmHg vs. T2D Δ9 ± 5 mmHg, P < 0.001 for both) responses to PEMI were greater (P < 0.05) in PRET2D compared with T2D patients. The aortic diastolic BP, AIx, AIx adjusted at 75 bpm, and time to reflection responses to PEMI were similar in PRET2D and T2D. CONCLUSIONS: Our findings show that aortic hemodynamic responses to exercise-related metabolites are exaggerated in PRET2D. These findings suggest that an increased left ventricular afterload during muscle metaboreflex activation may contribute to augment cardiovascular risk in adults with PRET2D.

The changing paradigm of dyslipidaemia management

&lt;p&gt;The 2013 American College of Cardiology (ACC)/American Heart Association (AHA) guideline on the treatment of blood cholesterol to reduce atherosclerotic cardiovascular risk in adults,(1) effected a change in the paradigm of dyslipidaemia management, in that it no longer advocated a target based therapy but instead posited a primary clinical basis for initiation of statin therapy. The intensity of statin therapy too was guided by clinical risk criteria rather than by absolute values of the lipid profile.&lt;/p&gt;

Minor variant of rs 16827043 in the iron regulator hemojuvelin gene (HJV) contributes to hypertension: The TAMRISK study.

It is known that iron overload may lead to an increased risk for many diseases. According to GWAS studies, iron regulatory protein HFE gene variant H63D (rs1799945) was associated with hypertension, an observation which we were able to confirm also in our TAMRISK cohort. Thus, it is possible that abnormalities in iron homeostasis may predispose to hypertension. This prompted us to study whether there is an association between hypertension and another iron overload-associated gene, hemojuvelin (HJV), which has 2 common polymorphic sites (rs 16827043, rs7536827).The study included 336 hypertensive cases and 480 controls. All participants were 50- year-old Finnish men and women, and the data was collected from the Tampere adult population cardiovascular risk study (TAMRISK). Genotypes were determined using Competitive Allelic Specific PCR (KASP).We found that the minor variant of the HJV polymorphic site rs16827043 (G-allele) is a statistically significant factor associated with hypertension among 50 year-old individuals compared with the AA genotype carriers (OR = 1.66, 95% CI: 1.06 – 2.60, P = 0.03). The risk was even higher when overweight subjects (BMI>30) were excluded from the analyses. For the other polymorphic variant rs7536827, association with hypertension was found only among normal or slightly overweight A-allele carriers.In conclusion, HJV genetic variants were associated with essential hypertension in Finnish subjects from the TAMRISK cohort. Previous studies together with the present one indicate that individuals with possible dysregulation of iron metabolism may have higher risk for hypertension than those with normal iron homeostasis.

Waist Circumference is Associated with Blood Pressure in Children with Normal Body Mass Index: A Cross-Sectional Analysis of 3,417 School Children.

BackgroundThe prevalence of childhood obesity and associated conditions, such as hypertension, has become a major problem of public health. Although waist circumference (WC) is a marker of cardiovascular risk in adults, it is unclear whether this index is associated with cardiovascular risk factors in children.ObjectiveOur aim was to evaluate the association between increased WC and elevated blood pressure (BP) in children with normal body mass index (BMI) ranges.MethodsCross-sectional evaluation of students between 6 and 11 years with normal BMI. WC was categorized by quartile for each age group. Normal BP was defined as values < 90th percentile, and levels above this range were considered elevated. Values of p < 0.05 were considered statistically significant.ResultsOf the 5,037 children initially assessed, 404 (8%) were excluded for being underweight and 1,216 (24.1%) were excluded for being overweight or obese. A final sample of 3,417 children was evaluated. The prevalence of elevated BP was 10.7%. In children with WC in the lowest quartile, the prevalence of elevated BP was 8.1%. This prevalence increased in upper quartiles: 10.6% in the second, 12.4% in third and 12.1% in the upper quartile. So, in this group, being in the highest WC quartile was associated with a 57% higher likelihood to present elevated BP when compared to those in the lowest quartile (Q4 vs Q1; OR 1.57 - 95%CI 1.14 - 2.17).ConclusionIn children aged 6 to 11 years, increased waist circumference is associated with elevated BP even when BMI is normal.

Persistence of Cardiac Remodeling in Preadolescents With Fetal Growth Restriction.

Fetal growth restriction (FGR) affects 5% to 10% of newborns and is associated with increased cardiovascular mortality in adulthood. We evaluated whether prenatal cardiovascular changes previously demonstrated in FGR persist into preadolescence. A cohort study of 58 FGR (defined as birth weight below 10th centile) and 94 normally grown fetuses identified in utero and followed-up into preadolescence (8-12 years of age) by echocardiography and 3-dimensional shape computational analysis. Compared with controls, FGR preadolescents had a different cardiac shape, with more spherical and smaller hearts. Left ventricular ejection fraction was similar among groups, whereas FGR had decreased longitudinal motion (decreased mitral annular systolic peak velocities: control median, 0.11 m/s [interquartile range, 0.09-0.12] versus FGR median 0.09 m/s [interquartile range, 0.09-0.10]; P<0.01) and impaired relaxation (isovolumic relaxation time: control, 0.21 ms [interquartile range, 0.12-0.35] versus FGR, 0.35 ms [interquartile range, 0.20-0.46]; P=0.04). Global longitudinal strain was decreased (control mean, -22.4% [SD, 1.37] versus FGR mean, -21.5% [SD, 1.16]; P<0.001) compensated by an increased circumferential strain and with a higher prevalence of postsystolic shortening in FGR as compared with controls. These differences persisted after adjustment for parental ethnicity and smoking, prenatal glucocorticoid administration, preeclampsia, gestational age at delivery, days in intensive care unit, sex, age, and body surface area at evaluation. This study provides evidence that cardiac remodeling induced by FGR persists until preadolescence with findings similar to those reported in their prenatal life and childhood. The findings support the hypothesis of primary cardiac programming in FGR for explaining the association between low birth weight and cardiovascular risk in adulthood.

Suplementos nutricionales como modificadores del riesgo cardiovascular en componentes del síndrome metabólico en adultos

ObjectiveTo analyze dietary supplements with long chain fatty acids, micronutrients and antioxidants in adult population as possible modifiers of cardiovascular risk in patients diagnosed with metabolic syndrome or any of its components. MethodsLiterature review of databases Medline and Embase using terms “Metabolic Syndrome” AND “Dietary supplements” and ‘Metabolic Syndrome’/exp AND ‘Dietary supplement’/exp, respectively, on the role of dietary supplements in modifying cardiovascular risk in adults with metabolic syndrome or any of its components. ResultsOut of 475 articles, the 37 selected studied the possible benefit of dietary supplements in metabolic syndrome. Some studies reveal a potential in long chain fatty acids and antioxidants (vitamin D, vitamin E) in reducing cardiovascular risk of patients with metabolic syndrome, evidenced in the decrease of parameters such as total cholesterol, blood sugar, body mass index and abdominal perimeter. ConclusionThe use of dietary supplements with long chain fatty acids and antioxidants could have beneficial effects in reducing cardiovascular risk in patients diagnosed with metabolic syndrome or any of its components. The use of supplements with other components must be studied more deeply to make further recommendations.

Body Weights in Adults With Congenital Heart Disease and the Obesity Frequency

Obesity may associate with greater cardiovascular risk in adults with congenital heart disease (ACHD) than in the general population. As ACHD often have exercise limitations, they may be uniquely predisposed to obesity. Nevertheless, obesity prevalence in ACHD, compared with the general population, has not been quantified in a large US cohort. Hence, we sought to determine the prevalence of obesity (30 ≤ body mass index <40) and morbid obesity (body mass index ≥40), in a large cohort of ACHD, compared with matched controls. Retrospective analysis was thus performed on all ACHD seen in an academic system in 2013. CHD severity was classified as simple, complex, or unclassified, using recently published criteria. A control group without CHD was randomly generated matching for age, gender, and race/ethnicity; 1,451 ACHD met inclusion criteria; 59.5% of ACHD were overweight to morbidly obese. Compared with controls, ACHD had similar prevalence of overweight (odds ratio [OR] 1.04, 95% confidence interval [CI] 0.89 to 1.22, p= 0.63) and obesity (OR 0.96, 95% CI 0.81 to 1.15, p= 0.69) but lower prevalence of morbid obesity (OR 0.24, 95% CI 0.16 to 0.34, p <0.001). These relationships were not attenuated by adjustment for CHD severity. In conclusion, ACHD are at equal risk as their matched peers to be overweight and obese. This is the largest study of obesity in US ACHD and the highest reported obesity prevalence in ACHD to date. As obesity is associated with significant cardiovascular risk, our findings indicate a need for improved lifestyle counseling in patients with CHD of all ages.

Weight Gain and Height Growth during Infancy, Childhood, and Adolescence as Predictors of Adult Cardiovascular Risk

ObjectivesTo investigate independent relationships of childhood linear growth (height gain) and relative weight gain to adult cardiovascular disease (CVD) risk traits in Asian Indians.Study designData from 2218 adults from the Vellore Birth Cohort were examined for associations of cross-sectional height and body mass index (BMI) and longitudinal growth (independent conditional measures of height and weight gain) in infancy, childhood, adolescence, and adulthood with adult waist circumference (WC), blood pressure (BP), insulin resistance (homeostatic model assessment-insulin resistance [HOMA-IR]), and plasma glucose and lipid concentrations.ResultsHigher BMI/greater conditional relative weight gain at all ages was associated with higher adult WC, after 3 months with higher adult BP, HOMA-IR, and lipids, and after 15 years with higher glucose concentrations. Taller adult height was associated with higher WC (men β = 2.32 cm per SD, women β = 1.63, both P < .001), BP (men β = 2.10 mm Hg per SD, women β = 1.21, both P ≤ .001), and HOMA-IR (men β = 0.08 log units per SD, women β = 0.12, both P ≤ .05) but lower glucose concentrations (women β = −0.03 log mmol/L per SD P = .003). Greater height or height gain at all earlier ages were associated with higher adult CVD risk traits. These positive associations were attenuated when adjusted for adult BMI and height. Shorter length and lower BMI at birth were associated with higher glucose concentration in women.ConclusionsGreater height or weight gain relative to height during childhood or adolescence was associated with a more adverse adult CVD risk marker profile, and this was mostly attributable to larger adult size.

Cost Effectiveness of Achieving Targets of Low-Density Lipoprotein Particle Number Versus Low-Density Lipoprotein Cholesterol Level

A recent analysis of a commercially insured US population found fewer cardiovascular disease (CVD) events in high-risk patients attaining low levels of low-density lipoprotein (LDL), as measured by LDL particle number (LDL-P) versus low LDL cholesterol (LDL-C). Here, we investigated the cost effectiveness of LDL-lowering therapy guided by LDL-P. Patients were selected from the HealthCore Integrated Research Database and followed for 12 to 36months. Patients who achieved LDL-P <1,000nmol/l were placed into the LDL-P cohort, whereas those without LDL-P tests, but who achieved LDL-C <100mg/dl, were placed into the LDL-C cohort. CVD-related costs included all health plan paid amounts related to CVD events or lipid management. Cost effectiveness was assessed through incremental cost-effectiveness ratios, defined as difference in total costs across the cohorts divided by difference in CVD events, measured over follow-up. Each cohort included 2,094, 1,242, and 705 patients over 12-, 24-, and 36-month follow-up. Patients in the LDL-P cohort received more aggressive lipid-lowering therapy and had fewer CVD events during follow-up compared to patients in the LDL-C cohort. This led to greater pharmacy costs and lower medical costs over time. Incremental cost-effectiveness ratio estimates ranged from $23,131 per CVD event avoided at 12months to $3,439 and-$4,555 at 24- and 36-month follow-up, suggesting a high likelihood that achieving LDL-P <1,000nmol/l is cost effective. In conclusion, LDL-lowering therapy guided by LDL-P was demonstrated to be cost effective, with greater clinical and economic benefit seen over longer time horizons and with the increased use of generic statins.

Glucuronic Acid Epimerase (GLCE) Variant rs3865014 (A>G) Is Associated with BMI, Blood Hemoglobin, Hypertension, and Cerebrovascular Events, the TAMRISK Study.

Heparan sulfate proteoglycans modulate many physiological systems, and genes responsible for proteoglycan assembly and disassembly may affect their interaction. We sought to determine whether polymorphisms of the glucuronic acid epimerase (GLCE) rs3865014 and sulfatase-2 (SULF2) rs2281279, genes coding for enzymes participating in heparan sulfate side chain activity, associate with hypertension, selected cardiometabolic risk factors and cardiovascular events in the Tampere adult population cardiovascular risk study. A Finnish cohort of 339 subjects with diagnosed hypertension and 441 controls was analyzed. Samples were genotyped for GLCE rs3865014 (A>G) and SULF2 rs2281279 (T>C) polymorphisms using competitive allele-specific PCR (KASP) technique. Prevalence of ischemic heart diseases (I20-I25) and incidence of cerebrovascular diseases (I60-I69) and transient cerebral ischemic attacks (TIA) (G45) were followed up until the subjects were on the average 60 years old. GLCE rs3865014 G allele showed negative association with hypertension (p = 0.022), waist circumference (p = 0.032), BMI (p = 0.048), and positive association with hemoglobin (p = 0.029), low-density lipoprotein cholesterol (p = 0.031), and frequency of cerebrovascular events (p = 0.011). SULF2 rs2281279 showed no association with the studied parameters. The GLCE gene polymorphism rs3865014 appears to have biological relevance in human pathophysiology.

Trajectories of total and central adiposity throughout adolescence and cardiometabolic factors in early adulthood.

Our aim was to identify trajectories of total and central adiposity from 13 to 21 years, and to investigate how adiposity changes at different phases of adolescence relate to adulthood cardiovascular risk factors. This study included participants from a population-based cohort (EPITeen), Portugal. Body mass index (BMI) and waist circumference (WC) were measured at 13, 17 and 21 years, and sex- and age-specific z-scores were calculated. Adiposity trajectories were identified using mixture growth models (BMI, n=2901; WC, n=2898). Cardiovascular risk factors were evaluated at 21 years (n=1763): systolic (SBP) and diastolic blood pressure (DBP), insulin resistance (HOMA-IR), triglycerides and cholesterol. Association of trajectory, and changes in adiposity z-scores with each cardiovascular risk factor was estimated by linear regression models. 'Normal', 'high, declining' and 'high, increasing' trajectories were identified in both sexes. 'High, increasing' BMI trajectory was associated with less favorable cardiovascular risk profile at 21 years in both sexes, whereas 'high, declining' presented a more favorable profile, similar to 'normal' trajectory in females. In addition, BMI increases between 13-17 years and 17-21 years were associated with increases in systolic and diastolic blood pressure, and insulin resistance, but more strongly for the later period. For every standard deviation (s.d.) increase in BMI between 17-21 years, mean SBP increased by 1.99 mmHg (95% confidence interval (CI): 1.01; 2.97) for females and 3.83 mmHg (2.67; 4.98) for males; the respective increase was 1.56 mmHg (0.72; 2.40) and 2.80 mmHg (1.97; 3.64) for DBP and 0.27 (0.21; 0.32) and 0.30 (0.24; 0.36) for HOMA-IR (log-transformed). Similar results were found for WC. Increases in adiposity, particularly from late adolescence-to-young adulthood, were associated with unfavorable cardiovascular profile in early adulthood. A benefit on the cardiovascular risk profile for participants in the declining adiposity trajectory was observed.

Aortic Elastic Properties in Preschool Children Born Preterm.

Preterm birth predisposes children to the development of cardiovascular diseases in adulthood. The aim of this study was to characterize elastic properties of the aorta at preschool age and test the hypothesis that prematurity is associated with decreased aortic distensibility and increased stiffness, both of which are predictors of increased cardiovascular risk. In an observational study of 76 five- to seven-year-old children born at a gestational age <32 weeks and 79 term-born controls, elastic parameters of the ascending and descending abdominal aorta were determined noninvasively by means of M mode echocardiographic tracings and calculated using computerized wall contour analysis. Compared with children born at term, the preterm group showed significantly reduced distensibility and increased stiffness of the descending abdominal aorta. These results remained significant under multivariable adjustment for birth weight z score, maternal smoking in pregnancy, maternal education, family history of cardiovascular disease, breastfeeding, childhood nutrition, and current body mass index z score (multivariable odds ratios and 95% confidence intervals 5.1, 1.7-15.9; P=0.005 and 2.8, 1.0-7.9; P=0.046, respectively). Further adjustment for intravenous lipid therapy attenuated the strength of association. Elastic properties of the ascending aorta did not differ between the 2 study groups. Children born preterm are characterized by decreased elastic properties of the descending abdominal aorta potentially attributable to impaired viscoelastic properties of and lipid damage to the aorta. Clinical follow-up of preterm infants with a focus on aortic elastic properties may be useful for tailoring early prevention programs and counteracting cardiovascular risk in adulthood.

Cardiovascular Risk Assessment: A Systematic Review of Guidelines.

Many guidelines exist for screening and risk assessment for the primary prevention of cardiovascular disease in apparently healthy persons. To systematically review current primary prevention guidelines on adult cardiovascular risk assessment and highlight the similarities and differences to aid clinician decision making. Publications in MEDLINE and CINAHL between 3 May 2009 and 30 June 2016 were identified. On 30 June 2016, the Guidelines International Network International Guideline Library, National Guideline Clearinghouse, National Library for Health Guidelines Finder, Canadian Medical Association Clinical Practice Guidelines Infobase, and Web sites of organizations responsible for guideline development were searched. 2 reviewers screened titles and abstracts to identify guidelines from Western countries containing recommendations for cardiovascular risk assessment for healthy adults. 2 reviewers independently assessed rigor of guideline development using the Appraisal of Guidelines for Research and Evaluation II instrument, and 1 extracted the recommendations. Of the 21 guidelines, 17 showed considerable rigor of development. These recommendations address assessment of total cardiovascular risk (5 guidelines), dysglycemia (7 guidelines), dyslipidemia (2 guidelines), and hypertension (3 guidelines). All but 1 recommendation advocates for screening, and most include prediction models integrating several relatively simple risk factors for either deciding on further screening or guiding subsequent management. No consensus on the strategy for screening, recommended target population, screening tests, or treatment thresholds exists. Only guidelines developed by Western national or international medical organizations were included. Considerable discrepancies in cardiovascular screening guidelines still exist, with no consensus on optimum screening strategies or treatment threshold. Barts Charity.

Gender-Related Cardiovascular Risk in Healthy Middle-Aged Adults

Men tend to develop cardiovascular disease (CVD) earlier in life than women. Whether this difference is attributable only to gender is a matter of debate. The purpose of this study was to evaluate gender differences in cardiovascular risk in a large cohort of asymptomatic men and women and explore gender-related risk in prespecified risk factor subgroups. We investigated 14,966 asymptomatic men and women free of diabetes, hypertension, or ischemic heart disease who were annually screened. The primary end point of the present study was the occurrence of ischemic or cerebrovascular disease as composite end point. Multivariate Cox proportional hazards regression modeling was used to assess the gender difference regarding CVD and to examine the association between CVD risk factors andgender. Mean age of the study population was 47 ± 10 years and 30% were women. Kaplan-Meier survival analysis showed that at 6.2 ± 3.9years' follow-up, the rate of CVD events was 6.1% among men compared with 1.8% among women (log-rank p <0.001). Consistently, multivariate analysis demonstrated that male gender was independently associated with a significant threefold increased risk for development of CVD events (hazard ratio 3.05, CI 2.25 to 4.14). The CVD risk associated with male gender was consistent in each risk subset analyzed, including older age, low high-density lipoprotein, impaired fasting glucose, and positive family history for ischemic heart disease (all p values for gender-by-risk factor interactions <0.05). Higher performance on treadmill test had a protective effect regarding CVD development in both men and women. In conclusions, healthy middle-aged men experienced increased risk for the development of CVD events compared with women independently of traditional CVD risk factors. However, better exercise capacity is associated with a protective effect.

Impact of the 2013 Cholesterol Guideline on Patterns of Lipid-Lowering Treatment in Patients with Atherosclerotic Cardiovascular Disease or Diabetes After 1 Year.

The 2013 ACC/AHA Guideline on the Treatment of Blood Cholesterol to Reduce Atherosclerotic Cardiovascular Risk in Adults emphasizes evidence-based treatment with moderate- to high-dose statins for patients at high risk for atherosclerotic cardiovascular disease (ASCVD). Whether this new guideline influenced patterns of treatment 1 year after its dissemination is unknown. To compare patterns of lipid-lowering treatment before and 1 year after the release of the 2013 cholesterol guideline in 2 high-risk groups: patients with ASCVD and patients with diabetes mellitus. Using pharmacy and medical claims from a large U.S. health insurance organization, 610,535 patients with ASCVD (n = 301,440) or diabetes mellitus (n = 309,095) were identified, and statin treatment rates and statin intensity were examined before and 1 year after the dissemination of the 2013 cholesterol guideline. A standardized difference of at least 10% was required to declare the effect size meaningful. Overall, there was no change in statin treatment rates for patients with ASCVD (48.0% before guideline vs. 47.3% after, standardized difference 1.4%) or diabetes (50% vs. 51.5% after, standardized difference 2.4%). Statin initiation rates among patients not on statins before the 2013 guideline were 10.1% in patients with ASCVD and 14.3% in patients with diabetes, but these gains were offset by 13.0% and 12.2% statin discontinuation rates among ASCVD and diabetes patients, respectively. Among patients taking statins 1 year after the guideline was issued, 80% of patients with ASCVD and aged ≤ 75 years were not on guideline-recommended high-intensity statin therapy, whereas most patients with ASCVD and aged > 75 years or patients with diabetes were on moderate- or high-intensity statin treatment. One year after dissemination of the 2013 cholesterol guideline, overall treatment rates with statins among patients with ASCVD and diabetes did not change appreciably, and many patients remained either untreated or undertreated. No outside funding supported this research. Chan is supported by grants from the National Heart Lung and Blood Institute (1R01HL123980 and K23HL102224). Tran, Stockl, Lew, and Solow are employed by Optum. Kao and Caglar were employed by Optum when this study was conducted. Chan serves as an advisor and consultant to OptumRx but received no compensation for work on this manuscript. Stockl is also employed by the Journal of Managed Care & Specialty Pharmacy. Spertus reports personal fees from United Healthcare and grants from Lilly, outside of the submitted work. None of the authors have any other financial conflicts of interest to report. Tran and Chan supervised this study, had full access to all of the data in the study, and take responsibility for the integrity of the data and the accuracy of the data analysis. Study design and concept were contributed by Tran and Chan. Tran and Kao collected the data, with analysis and interpretation performed by all the authors. Statistical analysis was performed by Caglar and Kao, and Tran and Chan drafted the manuscript. All authors were involved in the critical revision of the manuscript.

Exposure to high-fat diet since post-weaning induces cardiometabolic damage in adult rats

AimsThis study sought to investigate the metabolic, hemodynamic and autonomic responses in adult rats exposed to high-fat diet since post-weaning. Main methodsYoung male Wistar rats were assigned into groups fed with standard normal diet (3% lipids; ND, n=8) or high-fat diet (30% lipids; HD, n=8) during 8weeks. Body composition, food intake, serum triglycerides, total cholesterol, insulin, leptin and adiponectin concentrations were determined. Hemodynamic and autonomic evaluations were performed. Renin angiotensin system and nitric oxide were also studied by pharmacological blockades. Key findingsHD group showed no difference in body weight, total cholesterol, food intake in calories and insulin concentration, but visceral fat pads weight, triglycerides and leptin were higher in HD group. Moreover, HD group decreased adiponectin level, increased 12% of mean arterial pressure (MAP) and 6% of heart rate compared with ND group. Spectral analyses showed an increase in cardiovascular sympathetic modulation in HD compared with ND group. Depressor responses after losartan were higher in HD compared with ND group: −9±0.7 vs.−3±1.6mmHg. Pressor responses after l-NAME were higher in HD compared with ND: 45±8 vs. 32±5mmHg. SignificanceHigh-fat diet consumption during early period of life can increase WAT mass and MAP. These alterations may be mediated by an augment in sympathetic activity associated with higher leptin and lower adiponectin levels. These cardiometabolic damages can lead to the development of hypertension and increase cardiovascular risk in adulthood.