early vascular aging

早期血管老化
  • 文章类型: Journal Article
    背景:脉搏波速度(PWV)仍然是评估由动脉僵硬度定义的早期血管老化(EVA)的金标准方法。然而,它的高成本,耗时的过程,以及对合格医务人员的需求表明了确定EVA评估替代方法的重要性。
    目的:为了简化评估患者的过程,我们最近开发了早期血管老化动态评分(EVAA),一个简单的工具来预测EVA的风险。本研究的目的是在独立人群中进行EVAA的外部验证。
    方法:本研究纳入了八百七十九名(占46.3%的男性)患者,他们转诊到我们的高血压ESH卓越中心。平均年龄为46.43±22.87岁。EVA以两种不同的方式进行评估。第一次评估包括c-fPWV值,而第二个包括没有直接测量颈动脉-股动脉PWV的EVAA。
    结果:零假设是,与基于c-fPWV计算的预测相比,基于EVAA的EVA预测没有任何统计学上的显着差异。均方误差(MSE)用于评估零假设,被发现是0.40。结果表明,EVAA显示EVA的概率为0.98的敏感性和0.75的特异性。EVAA呈现95%的阳性预测值和92%的阴性预测值。
    结论:我们的研究表明,在识别EVA患者时,EVAA可以与颈动脉-股PWV一样可靠。因此,我们希望EVAA将成为临床实践中的有用工具。
    BACKGROUND: Pulse Wave Velocity (PWV) remains the gold-standard method to assess Early Vascular Aging (EVA) defined by arterial stiffness. However, its high cost, time-consuming process, and need for qualified medical staff shows the importance of identifying alternative methods for the EVA evaluation.
    OBJECTIVE: In order to simplify the process of assessing patients\' EVA, we recently developed the Early Vascular Aging Ambulatory score (EVAAs), a simple tool to predict the risk of EVA. The aim of the present study was the external validation of EVAAs in an independent population.
    METHODS: Eight hundred seventy-nine (46.3% men) patients who were referred to our Hypertension ESH Excellence Center were included in this study. The mean age was 46.43 ± 22.87 years. EVA was evaluated in two different ways. The first assessment included c-f PWV values, whereas the second one included EVAAs without the direct measurement of carotid-femoral PWV.
    RESULTS: The null hypothesis was that the prediction of EVA based on EVAAs does not present any statistically significant difference compared to the prediction based on the calculation from c-f PWV. Mean squared error (MSE) was used for the assessment of the null hypothesis, which was found to be 0.40. The results revealed that the EVAAs show the probability of EVA with 0.98 sensitivity and 0.75 specificity. The EVAAs present 95% positive predictive value and 92% negative predictive value.
    CONCLUSIONS: Our study revealed that EVAAs could be as reliable as the carotid-femoral PWV to identify patients with EVA. Hence, we hope that EVAAs will be a useful tool in clinical practice.
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  • 文章类型: Journal Article
    OBJECTIVE: The obesity rate among middle-aged and young adults in China is increasing annually, and the incidence of cardiovascular diseases is becoming more prevalent in younger populations. However, it has not yet been reported whether obesity is associated with early vascular aging (EVA). This study aims to explore the correlation between obesity and EVA in middle-aged and young adult health check-up populations, providing a reference for the prevention of cardiovascular diseases.
    METHODS: A total of 15 464 middle-aged and young adults aged 18-59 who completed brachial-ankle pulse wave velocity (baPWV) test in the Third Xiangya Hospital of Central South University from January to December 2020 were included. Among them, 1 965 individuals with normal blood pressure and no cardiovascular risk factors were selected as the healthy population. The baPWV thresholds for determining EVA in each age group for males and females were calculated based on the baPWV values of the healthy population. The number and percentage of individuals meeting the EVA criteria in the middle-aged and young adult health check-up populations were statistically analyzed by age and gender. The differences in obesity indicators [visceral adiposity index (VAI), body mass index (BMI), waist circumference (WC)] between the EVA and non-EVA groups for males and females were compared. Using EVA as the dependent variable, VAI, BMI, and WC were included as independent variables in a Logistic model to analyze the correlation between each obesity indicator and EVA before and after adjusting for other influencing factors. Furthermore, the correlation between each obesity indicator and EVA in each age group was analyzed.
    RESULTS: In the health check-up populations, the detection rate of EVA in different age groups was 1.65%-10.92% for males, and 1.16%-10.50% for females, the detection rate of EVA increased with age in both males and females. Except for the 40-<50 age group, the EVA detection rate was higher in males than in females in all other age groups. Regardless of gender, obesity indicators VAI, BMI, and WC were significantly higher in the EVA group than in the non-EVA group (all P<0.01). Before and after adjusting for other influencing factors, VAI and WC were both correlated with EVA (both P<0.05). BMI was a risk factor for EVA before adjusting for other influencing factors (P<0.01), but after adjustment, the correlation between BMI and EVA was not statistically significant (P=0.05). After adjusting for other influencing factors, the correlation between VAI and EVA was statistically significant in the 18-<40 and 50-<60 age groups (both P<0.05), while the correlation between BMI and WC with EVA was not statistically significant (both P>0.05). In the 40-<50 age group, the correlation between VAI and BMI with EVA was not statistically significant (both P>0.05), but the correlation between WC and EVA was statistically significant (P<0.01).
    CONCLUSIONS: VAI is closely related to the occurrence of EVA in middle-aged and young adults aged 18-<40 and 50-<60 years, while WC is closely related to the occurrence of EVA in those aged 40-<50 years.
    目的: 中国中青年肥胖率逐年升高,心血管疾病的发生呈年轻化趋势。然而,肥胖是否与早发血管老化(early vascular aging,EVA)相关目前尚未见报道。本研究旨在分析中青年健康体检人群肥胖与EVA的相关性,为心血管疾病的预防提供参考。方法: 纳入2020年1至12月在中南大学湘雅三医院完成臂踝脉搏波传导速度(brachial-ankle pulse wave velocity,baPWV)测量的15 464名18~59岁中青年健康体检者,并选择其中血压正常且无心血管风险因素的1 965名受检者作为健康人群。根据健康人群各年龄段男性和女性的baPWV值,计算得到用于判断各年龄段男性和女性EVA的baPWV界值。按照年龄和性别进行分组,统计中青年健康体检人群中符合EVA标准的人数,并计算所占百分比。分别比较男性/女性EVA组和非EVA组之间肥胖指标[内脏脂肪指数(visceral adiposity index,VAI)、体重指数(body mass index,BMI)、腰围(waist circumference,WC)]的差异。以EVA作为因变量,分别将VAI、BMI、WC作为自变量纳入Logistic模型,分别分析校正其他影响因素前后各肥胖指标与EVA的相关性;并进一步分析各年龄段各肥胖指标与EVA的相关性。结果: 在健康体检人群中,不同年龄组男性EVA检出率1.65%~10.92%,女性EVA检出率1.16%~10.50%;随年龄增加,男性、女性EVA检出率均呈上升趋势;且除40~<50岁年龄组,其他年龄组男性EVA检出率均高于女性。不管是男性或女性,EVA组肥胖指标VAI、BMI、WC均明显高于非EVA组(均P<0.01)。在对其他影响因素进行校正前后,VAI、WC均与EVA相关(均P<0.05)。在未校正其他影响因素时,BMI为EVA的危险因素(P<0.01),而在校正其他影响因素后,BMI与EVA的相关性不具有统计学意义(P=0.05)。校正其他影响因素后,18~<40岁、50~<60岁年龄组VAI与EVA的相关性均具有统计学意义(均P<0.05),BMI、WC与EVA的相关性均无统计学意义(均P>0.05);而在40~<50岁年龄组,VAI、BMI与EVA的相关性均无统计学意义(均P>0.05),WC与EVA的相关性有统计学意义(P<0.01)。结论: 18~<40岁、50~<60岁中青年人群VAI与EVA的发生密切相关,40~<50岁中青年人群WC与EVA的发生密切相关。.
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  • 文章类型: Systematic Review
    背景:虽然动脉硬化是心血管疾病的已知危险因素,目前尚不清楚急性缺血性卒中(AIS)患者是否存在早期血管老化(EVA).本系统综述和荟萃分析旨在研究AIS患者在卒中发作后不久通过脉搏波传导速度(PWV)测量是否表现出EVA。阐明动脉僵硬度之间的关系,高血压,和中风。
    方法:纳入13项病例对照研究,比较AIS患者和非AIS个体的PWV测量值。进行了荟萃分析以比较PWV水平,年龄,血压,1,711例AIS患者和1,551例对照者中不同心血管危险因素的患病率。
    结果:尽管AIS患者的PWV高于对照组(平均差异:1.72m/s,95%CI:1.05-2.38,p<0.001;I2=88.3%),他们的年龄没有显着差异(95%CI:-0.47-0.94,p=0.519;I2=0%),提示AIS患者存在EVA。此外,AIS患者收缩压和舒张压升高,吸烟的几率更高,高血压,糖尿病,与对照组相比,男性性别。
    结论:这项研究的发现强调了AIS患者中EVA的存在,通过卒中发作后不久PWV测量值的增加可以明显看出。值得注意的是,吸烟,高血压,和糖尿病是导致该人群动脉僵硬加速的重要因素。
    BACKGROUND: While arterial stiffening is a known risk factor for cardiovascular diseases, it remains unclear whether there is an early vascular aging (EVA) in patients who have experienced acute ischemic stroke (AIS). This systematic review and meta-analysis aims to investigate whether patients with AIS exhibit EVA through pulse wave velocity (PWV) measurements shortly after the stroke onset, shedding light on the relationship between arterial stiffness, hypertension, and stroke.
    METHODS: Thirteen case-control studies were included, comparing PWV measurements between AIS patients and non-AIS individuals. A meta-analysis was performed to compare PWV levels, age, blood pressure, and the prevalence of different cardiovascular risk factors among 1711 AIS patients and 1551 controls.
    RESULTS: Despite AIS patients showing higher PWV compared to controls (mean difference: 1.72 m/s, 95 % CI: 1.05-2.38, p < 0.001; I2 = 88.3 %), their age did not significantly differ (95 % CI: -0.47-0.94, p = 0.519; I2 = 0 %), suggesting EVA in AIS patients. Moreover, AIS patients exhibited elevated systolic and diastolic blood pressure and had higher odds of smoking, hypertension, diabetes, and male gender compared to controls.
    CONCLUSIONS: This study\'s findings underscore the presence of EVA in AIS patients, evident through increased PWV measurements shortly after stroke onset. Notably, smoking, hypertension, and diabetes mellitus emerge as substantial factors contributing to accelerated arterial stiffness within this population.
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  • 文章类型: Journal Article
    在今天的工业化社会中,食物消费已经发生了巨大的变化,增加了红肉的摄入量,使用人造甜味剂代替谷物和蔬菜或糖,分别。这些饮食变化通过增加糖尿病和肥胖症等代谢性疾病的发病率来影响公众健康。心肾并发症的风险进一步升高。研究表明,高红肉摄入量和人造甜味剂的摄入可以改变微生物组成和进一步的肠壁屏障通透性,从而增加尿毒症毒素的传播,如硫酸对甲苯酯,硫酸吲哚酚,三甲胺n-氧化物和苯乙酰谷氨酰胺进入血流,引起一系列病理生理作用,特别是作为肾脏的菌株,因为他们负责清除毒素。在这次审查中,我们讨论了西方饮食的负担如何影响肠道微生物组,改变微生物组成和增加尿毒症毒素的肠道通透性,以及其对早期血管老化的不利影响,肾脏本身和血脑屏障,除了对饮食变化/干预措施的潜在影响,以保护未来与慢性病相关的健康问题。
    In today\'s industrialized society food consumption has changed immensely toward heightened red meat intake and use of artificial sweeteners instead of grains and vegetables or sugar, respectively. These dietary changes affect public health in general through an increased incidence of metabolic diseases like diabetes and obesity, with a further elevated risk for cardiorenal complications. Research shows that high red meat intake and artificial sweeteners ingestion can alter the microbial composition and further intestinal wall barrier permeability allowing increased transmission of uremic toxins like p-cresyl sulfate, indoxyl sulfate, trimethylamine n-oxide and phenylacetylglutamine into the blood stream causing an array of pathophysiological effects especially as a strain on the kidneys, since they are responsible for clearing out the toxins. In this review, we address how the burden of the Western diet affects the gut microbiome in altering the microbial composition and increasing the gut permeability for uremic toxins and the detrimental effects thereof on early vascular aging, the kidney per se and the blood-brain barrier, in addition to the potential implications for dietary changes/interventions to preserve the health issues related to chronic diseases in future.
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  • 文章类型: Journal Article
    背景:心血管疾病(CVDs)仍然是全球主要的健康问题,需要超越传统因素的高级风险评估。早期血管老化(EVA),以加速的血管变化为特征,在心血管风险评估中获得了重要性。
    方法:西班牙的EVasCu研究使用非侵入性测量检查了390名健康参与者。四个变量的构造(脉压,脉搏波速度,糖化血红蛋白,高级糖基化终产物)用于聚类。主成分分析的K均值聚类揭示了两个聚类,健康血管老化(HVA)和早期血管老化(EVA)。外部验证变量包括社会人口统计学,肥胖,血糖,炎症,血脂谱,血管,和血压因素。
    结果:EVA集群参与者年龄较大,肥胖程度较高,血糖控制较差,血脂异常,改变了血管特性,和更高的血压。观察到年龄的显着差异,吸烟状况,身体质量指数,腰围,脂肪百分比,葡萄糖,胰岛素,C反应蛋白,糖尿病患病率,脂质分布,动脉僵硬度,和血压水平。这些发现证明了传统心血管危险因素与EVA之间的关联。
    结论:本研究验证了EVA的聚类模型,并强调了其与既定风险因素的关联。EVA评估可以融入临床实践,允许早期干预和个性化心血管风险管理。
    Cardiovascular diseases (CVDs) remain a major global health concern, necessitating advanced risk assessment beyond traditional factors. Early vascular aging (EVA), characterized by accelerated vascular changes, has gained importance in cardiovascular risk assessment.
    The EVasCu study in Spain examined 390 healthy participants using noninvasive measurements. A construct of four variables (Pulse Pressure, Pulse Wave Velocity, Glycated Hemoglobin, Advanced Glycation End Products) was used for clustering. K-means clustering with principal component analysis revealed two clusters, healthy vascular aging (HVA) and early vascular aging (EVA). External validation variables included sociodemographic, adiposity, glycemic, inflammatory, lipid profile, vascular, and blood pressure factors.
    EVA cluster participants were older and exhibited higher adiposity, poorer glycemic control, dyslipidemia, altered vascular properties, and higher blood pressure. Significant differences were observed for age, smoking status, body mass index, waist circumference, fat percentage, glucose, insulin, C-reactive protein, diabetes prevalence, lipid profiles, arterial stiffness, and blood pressure levels. These findings demonstrate the association between traditional cardiovascular risk factors and EVA.
    This study validates a clustering model for EVA and highlights its association with established risk factors. EVA assessment can be integrated into clinical practice, allowing early intervention and personalized cardiovascular risk management.
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  • 文章类型: Observational Study
    目的:动脉僵硬度被认为是具有独立预后价值的中间指标。这项研究的目的是评估与社区药房患者的SCORE相比,动脉僵硬度的估计是否可以改善CV风险分层。
    方法:观察性前瞻性流行病学研究,其中连续进入参与社区药房的个体通过振荡法自愿测量血压并估计脉搏波速度(AGEDIO,IEM®)根据SCORE对其CV风险进行分层,与使用动脉僵硬度进行比较。
    结果:经过9个月的招聘,数据来自923名患者(570名女性,收集了353名男子)。16/122(13.1%)40岁以下患者和72/364(19.8%)65岁以上的患者出现病理僵硬,可以归类为高风险,即使超出了得分的年龄范围。在437名(47.3%)容易计算SCORE的患者中,42/437例患者(9.6%)表现为病理性动脉僵硬度。281例患者有胆固醇值(64.3%)。其中,根据SCORE,只有6人(2.1%)属于高风险类别。
    结论:随机进入社区药房的受试者中有一半以上的年龄使得无法通过SCORE计算CV风险。其中,18.1%的患者检测到动脉损伤。另一半,9.6%表现为动脉损伤,因此,高CV风险,当SCORE仅在2.1%中检测到它。因此,与SCORE相比,在社区药房估计动脉僵硬度显着改善了对高CV风险的检测.
    Arterial stiffness is considered to be an intermediate marker with independent prognostic value. The objective of this study is to assess whether the estimation of arterial stiffness can improve CV risk stratification compared to SCORE in patients at community pharmacies.
    Observational prospective epidemiological study in which consecutive individuals entering a participating Community Pharmacy are offered a voluntary measurement of blood pressure and estimation of pulse wave velocity by oscillometry (AGEDIO, IEM®) to stratify their CV risk according to SCORE compared to the use of arterial stiffness.
    After nine months of recruitment, data from 923 patients (570 women, 353 men) were collected. 16/122 (13.1%) patients under 40 years and 72/364 (19.8%) over 65 years of age presented pathological stiffness and could be classified as high-risk, even though being out of the age-range of SCORE. Of the 437 (47.3%) patients who were susceptible to calculating SCORE, 42/437 patients (9.6%) presented pathological arterial stiffness. Cholesterol values were available in 281 patients (64.3%). Among them, according to SCORE, only 6 (2.1%) fell into the high-risk category.
    More than half of the subjects who randomly enter a community pharmacy had ages that make it impossible to calculate the CV risk by SCORE. Among them, arterial damage was detected in 18.1%. Of the other half, 9.6% presented arterial damage and, therefore, high CV risk, when SCORE only detected it in 2.1%. Therefore, estimating arterial stiffness in community pharmacies markedly improves detection of high CV risk compared to SCORE.
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  • 文章类型: Journal Article
    动脉僵硬度增加与早期血管老化有关,是心血管疾病和死亡率的独立预测因素。动脉僵硬度增加的分子机制在很大程度上尚未被探索,尤其是在蛋白质组水平。我们旨在探讨脉搏波传导速度与尿液蛋白质组学之间的关系。我们纳入了来自非洲预测研究的20至30年间919名明显健康(无慢性疾病)的黑人和白人男性和女性(平均分布)。毛细管电泳飞行时间质谱用于分析尿蛋白质组。我们测量了颈动脉-股动脉脉搏波速度以估计动脉僵硬度。在总组中,脉搏波速度与胶原衍生肽(包括I型胶原)呈正相关,II,III,IV,V,和IX以及与XI型胶原蛋白相反(调整平均动脉压)。关于非胶原衍生的肽,脉搏波速度与聚合免疫球蛋白受体肽呈正相关(n=2)(所有q值≤0.05)。在多变量调整分析中,脉搏波速度与7种尿肽呈正相关且独立相关(I型胶原蛋白,n=5)(所有p值≤0.05)。我们发现脉搏波传导速度与I型胶原衍生肽之间存在显著的正相关和独立相关,提示细胞外基质支架中I型胶原的失调可能导致动脉僵硬度的早期发作。
    Increased arterial stiffness is related to early vascular aging and is an independent predictor for cardiovascular disease and mortality. Molecular mechanisms underlying increased arterial stiffness are largely unexplored, especially at the proteome level. We aimed to explore the relationship between pulse wave velocity and urinary proteomics. We included 919 apparently healthy (no chronic illnesses) Black and White men and women (equally distributed) between 20 and 30 years from the African-PREDICT study. Capillary electrophoresis time-of-flight mass spectrometry was used to analyze the urinary proteome. We measured the carotid-femoral pulse wave velocity to estimate arterial stiffness. In the total group, pulse wave velocity correlated positively with collagen-derived peptides including collagen types I, II, III, IV, V, and IX and inversely with collagen type XI (adjusted for mean arterial pressure). Regarding noncollagen-derived peptides, pulse wave velocity positively correlated with polymeric immunoglobulin receptor peptides (n = 2) (all q-value ≤0.05). In multivariable adjusted analyses, pulse wave velocity associated positively and independently with seven urinary peptides (collagen type I, n = 5) (all p-value ≤0.05). We found significant positive and independent associations between pulse wave velocity and the collagen type I-derived peptides, suggesting that dysregulation of collagen type I in the extracellular matrix scaffold could lead to early onset of increased arterial stiffness.
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  • 文章类型: Journal Article
    背景:早期血管老化(EVA)的概念代表了未来研究心血管疾病早期表现的病理生理机制的潜在有益模型。出于这个原因,本研究的目的是通过验证性因素分析验证EVA在基于血管的单因素上的概念,健康成人人群的临床和生化参数,并开发一个统计模型,从数据集中收集的变量中估计EVA指数,以将患者分为不同的心血管风险组:健康血管老化(HVA)和EVA。
    方法:EVasCu研究,一项横断面研究,基于390名健康成年人的数据。为了检验测量加速血管老化的单因素模型的构造有效性,不同的模型,包括血管,检查了临床和生化参数。此外,无监督聚类技术(使用K均值和分层方法)用于识别在分析变量方面具有相似特征的患者组,以将患者分为不同的心血管风险组:HVA和EVA.
    结果:我们的数据表明,包括脉压在内的单因素模型,糖化血红蛋白A1c,脉搏波传导速度和糖基化终产物对EVA指标的结构效度最好。风险组对单独患者的最优值是K=2(HVA和EVA)。
    结论:EVA指数被证明是将患者分为不同心血管风险组的适当模型,这在指导未来的预防和治疗干预方面可能是有价值的。
    The concept of early vascular aging (EVA) represents a potentially beneficial model for future research into the pathophysiological mechanisms underlying the early manifestations of cardiovascular disease. For this reason, the aims of this study were to verify by confirmatory factor analysis the concept of EVA on a single factor based on vascular, clinical and biochemical parameters in a healthy adult population and to develop a statistical model to estimate the EVA index from variables collected in a dataset to classify patients into different cardiovascular risk groups: healthy vascular aging (HVA) and EVA.
    The EVasCu study, a cross-sectional study, was based on data obtained from 390 healthy adults. To examine the construct validity of a single-factor model to measure accelerated vascular aging, different models including vascular, clinical and biochemical parameters were examined. In addition, unsupervised clustering techniques (using both K-means and hierarchical methods) were used to identify groups of patients sharing similar characteristics in terms of the analysed variables to classify patients into different cardiovascular risk groups: HVA and EVA.
    Our data show that a single-factor model including pulse pressure, glycated hemoglobin A1c, pulse wave velocity and advanced glycation end products shows the best construct validity for the EVA index. The optimal value of the risk groups to separate patients is K = 2 (HVA and EVA).
    The EVA index proved to be an adequate model to classify patients into different cardiovascular risk groups, which could be valuable in guiding future preventive and therapeutic interventions.
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  • 文章类型: Journal Article
    背景动脉瘤大小对于胸主动脉瘤(TAA)患者来说是一个不完善的风险评估工具。评估动脉年龄可能有助于TAA风险分层,因为它更好地反映主动脉健康。我们试图评估动脉年龄作为TAA增长更快的预测指标,与实际年龄无关。方法和结果我们检查了137例TAA患者。动脉年龄根据经验证的方程估计,使用患者的血压和颈动脉股动脉脉搏波速度。从现有的影像学研究中前瞻性地确定动脉瘤的生长。多变量线性回归评估了实际年龄和动脉年龄与TAA生长的关系,多变量逻辑回归评估了时间和动脉年龄与动脉瘤生长加速(定义为生长>样本中的中位数)的相关性。平均±SD年龄和动脉年龄分别为62.2±11.3和54.2±24.5岁,分别。平均基线TAA大小和随访时间为45.9±4.0mm和4.5±1.9年,分别。TAA增长的中位数(四分位距)为0.31(0.14-0.52)毫米/年。年龄较大的动脉(β±SE1年:0.004±0.001,P<0.0001)与较快的TAA生长独立相关,而实际年龄则没有(P=0.083)。在逻辑回归中,动脉年龄每增加5年,TAA加速增长的几率增加23%(95%CI,1.085~1.394;P=0.001).结论动脉年龄与动脉瘤扩张加速独立相关,而实际年龄不是。我们的结果强调,与当前的临床标准(实际年龄)相比,对动脉年龄进行非侵入性且廉价的评估可能对TAA风险分层和疾病监测有用。
    Background Aneurysm size is an imperfect risk assessment tool for those with thoracic aortic aneurysm (TAA). Assessing arterial age may help TAA risk stratification, as it better reflects aortic health. We sought to evaluate arterial age as a predictor of faster TAA growth, independently of chronological age. Methods and Results We examined 137 patients with TAA. Arterial age was estimated according to validated equations, using patients\' blood pressure and carotid-femoral pulse wave velocity. Aneurysm growth was determined prospectively from available imaging studies. Multivariable linear regression assessed the association of chronological age and arterial age with TAA growth, and multivariable logistic regression assessed associations of chronological and arterial age with the presence of accelerated aneurysm growth (defined as growth>median in the sample). Mean±SD chronological and arterial ages were 62.2±11.3 and 54.2±24.5 years, respectively. Mean baseline TAA size and follow-up time were 45.9±4.0 mm and 4.5±1.9 years, respectively. Median (interquartile range) TAA growth was 0.31 (0.14-0.52) mm/year. Older arterial age (ß±SE for 1 year: 0.004±0.001, P<0.0001) was independently associated with faster TAA growth, while chronological age was not (P=0.083). In logistic regression, each 5-year increase in arterial age was associated with a 23% increase in the odds of accelerated TAA growth (95% CI, 1.085-1.394; P=0.001). Conclusions Arterial age is independently associated with accelerated aneurysm expansion, while chronological age is not. Our results highlight that a noninvasive and inexpensive assessment of arterial age can potentially be useful for TAA risk stratification and disease monitoring as compared with the current clinical standard (chronological age).
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  • 文章类型: Journal Article
    早期血管老化(EVA)与心血管不良事件的高风险相关,可以通过评估动脉血流动力学进行非侵入性评估。有先兆子痫病史的女性患心血管疾病的风险增加,但是潜在的机制还没有完全理解。我们假设有先兆子痫病史的女性在产后期间表现出持续的动脉异常和EVA。方法和结果我们进行了全面的,对有先兆子痫病史的女性(n=40)和既往血压正常妊娠的年龄匹配对照组(n=40)进行无创动脉血流动力学评估.我们使用了经过验证的方法,将压平张力测量法与经胸超声心动图相结合,以获得主动脉僵硬度的测量,稳定和脉动的动脉负荷,中枢血压,和动脉波反射。EVA的存在被定义为主动脉硬度高于基于参与者年龄和血压的参考值所预测的值。先兆子痫与动脉血流动力学变量的相关性用多变量线性回归评估,重度子痫前期与EVA的相关性采用多变量logistic回归分析,针对混杂因素进行了调整。我们发现有先兆子痫病史的女性有更大的主动脉僵硬度,稳定的动脉负荷,中枢血压,与对照组相比,动脉波反射。我们观察到了剂量-反应关系,在严重的亚组中观察到最大的异常,早产,或复发性先兆子痫。与对照组相比,重度先兆子痫妇女出现EVA的几率是对照组的9.23倍(95%CI,1.67-51.06,P=0.011),与非重度先兆子痫妇女相比,出现EVA的几率是对照组的7.87倍(95%CI,1.29-47.77,P=0.025)。结论我们的研究全面表征了先兆子痫后动脉血流动力学异常,并表明有先兆子痫病史的女性的特定亚组表现出与动脉健康相关的更大的动脉血流动力学改变。我们的发现对于理解先兆子痫和心血管事件之间的潜在联系具有重要意义。并建议患有严重疾病的女性,早产,或复发性先兆子痫作为亚组,可能值得加强预防和早期发现心血管疾病的努力。
    Background Early vascular aging (EVA) is associated with higher risk of adverse cardiovascular events and can be estimated noninvasively by assessing arterial hemodynamics. Women with a history of preeclampsia have increased risk of cardiovascular disease, but underlying mechanisms are incompletely understood. We hypothesized that women with a history of preeclampsia display persistent arterial abnormalities and EVA in the postpartum period. Methods and Results We performed a comprehensive, noninvasive arterial hemodynamic evaluation in women with a history of preeclampsia (n=40) and age-matched controls with previous normotensive pregnancies (n=40). We used validated methods integrating applanation tonometry with transthoracic echocardiography to obtain measures of aortic stiffness, steady and pulsatile arterial load, central blood pressure, and arterial wave reflections. Presence of EVA was defined as aortic stiffness higher than that predicted from reference values based on the participant\'s age and blood pressure. The association of preeclampsia with arterial hemodynamic variables was assessed with multivariable linear regression, and the association of severe preeclampsia with EVA was assessed with multivariable logistic regression, adjusted for confounders. We found that women with a history of preeclampsia had greater aortic stiffness, steady arterial load, central blood pressure, and arterial wave reflections when compared with controls. We observed a dose-response relationship, with the greatest abnormalities observed in subgroups with severe, preterm, or recurrent preeclampsia. Women with severe preeclampsia had 9.23 times greater odds of having EVA as compared with controls (95% CI, 1.67-51.06, P=0.011) and 7.87 greater odds of EVA as compared with women with nonsevere preeclampsia (95% CI, 1.29-47.77, P=0.025). Conclusions Our study comprehensively characterizes arterial hemodynamic abnormalities after preeclampsia and suggests that specific subgroups of women with a history of preeclampsia exhibit greater alterations in arterial hemodynamics related to arterial health. Our findings have important implications for understanding potential links between preeclampsia and cardiovascular events, and suggest women with severe, preterm, or recurrent preeclampsia as subgroups who may deserve intensification of efforts for prevention and early detection of cardiovascular disease.
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