Comparison of Carotid Intima-Media Thickness in Children and Adults With and Without Obesity: A Hysteresis Model

ObjectiveTo describe a third-degree polynomial function (hysteresis) of the effect size of age, obesity, and insulin sensitivity over the carotid intima-media thickness (c-IMT), in the pediatric and adult groups.MethodsA quasi-experimental study with fixed factor analysis of age (children aged 8-12 years, n = 73; adults aged 21-45 years, n = 82) and obesity (yes, n = 76; no, n = 79) was conducted to analyze the effect on the c-IMT and Matsuda insulin sensitivity index values. This quasi-experimental design was analyzed with robust regression modeling.ResultsThe additive effect of obesity, independent of age, was evident in the case of the c-IMT values. There was no interaction effect, but a significant difference between participants with normal weight and those with obesity was found (P < .0001). The difference between adults and children was also significant, but the effect size was smaller. A model was created based on age, Tanner stage, and obesity using the c-IMT and Matsuda insulin sensitivity index values. A linear function fit as R², and the cubic function estimated parameters like a polynomial model.ConclusionThis practical study design showed that children with obesity displayed the same levels of carotid intima-media abnormalities as adults with obesity. The polynomial shape of the model suggests potentially poor outcomes that resemble the hysteresis process and may predict chronic cardiometabolic events during early adulthood.     

Impact of Body Mass Index on Changes in Common Carotid Artery Wall Thickness

Objective: To examine associations between changes in body mass index (BMI) and changes in carotid artery intima-media thickness (IMT) in a community-based sample. Research Methods and Procedures: Carotid artery IMT and BMI were assessed at baseline (between 1987 and 1990) and in three subsequent examinations at 3-year intervals in participants in the Atherosclerosis Risk in Communities cohort. The 9316 African-American and white men and women in the analysis were 45 to 64 years of age at baseline. Cross-sectional associations between BMI and IMT were assessed using general linear models. Longitudinal associations were examined using mixed models analysis. Results: Cross-sectional associations between BMI and IMT were confirmed. At baseline, a 1-kg/m² increase in BMI was associated with an increase in IMT that ranged from 2.5 to 7.5 μm among the ethnic-gender groups examined. Changes in BMI were not associated with changes in IMT in models that adjusted for aging and other covariates. Results were similar across ethnic-gender groups. Discussion: Among free-living, 45- to 64-year-old adults, changes in common carotid artery IMT associated with changes in BMI are either very small or absent.     

阿托伐他汀钙对无动脉硬化原发性高血压患者血脂和颈动脉内膜中层厚度的影响

目的:研究阿托伐他汀钙对无动脉硬化原发性高血压患者血脂和颈动脉内膜中层厚度(cal MT)的影响。方法:选取2013年7月到2014年7月我院收治的无动脉硬化原发性高血压患者100例,按照随机数字表法将患者分为研究组和对照组,每组50例,对照组给予常规治疗,研究组在对照组的基础上给予阿托伐他汀钙治疗,治疗时间均为6个月。比较治疗前、治疗后两组血脂、血压以及cal MT。结果:研究组治疗后总胆固醇(TC)、低密度脂蛋白胆固醇(LDL-C)显著降低,高密度脂蛋白胆固醇(HDL-C)显著增高,且显著优于对照组治疗后,比较差异具有统计学意义(P0.05);两组治疗后血压均显著低于治疗前,比较差异具有统计学意义(P0.05),且治疗后研究组显著优于对照组,比较差异具有统计学意义(P0.05);治疗后研究组cal MT显著优于治疗前,且优于对照组,比较差异具有统计学意义(P0.05)。结论:阿托伐他汀钙治疗无动脉硬化原发性高血压能显著改善患者血脂水平,降低其cal MT,对预防患者动脉粥样硬化具有重要意义。     

Impact of Multiple Cardiovascular Risk Factors on Carotid Intima-Media Thickness and Elasticity

Background

Carotid intima-media thickness (IMT) and elasticity have been shown to be independent predictors of cardiovascular disease (CVD). Cardiovascular risk factors (CVRFs) includes hypertension, dyslipidemia, diabetes, overweight and smoking. The objective was to investigate whether the clustering of three or more components of CVRFs has a greater impact on carotid IMT and elasticity than individual components of CVRFs.

Methods

One hundred and seventy-three participants without clinical CVD were classified as the multiple CVRFs patients with three or more CVRFs (n  = 55) and control group with two or less CVRFs (n  = 118). Carotid IMT and elastic modulus were measured by B-mode ultrasound and vessel texture matching method (VTMM), respectively.

Results

The multiple CVRFs conferred a disproportionate increase in carotid IMT (43%, p<0.0001) and elastic modulus (60%, p<0.0001), compared with control group. Multiple regression models, which included age, gender, as well as each individual component of CVRFs as continuous variables, showed that multiple CVRFs was an independent determinant of both IMT (p  = 0.042) and elasticity (p  = 0.008). In the analysis of variance adjusted with age, subjects with single, double, and multiple CVRFs, increased by 8.1%, 42.2%, and 66% for IMT, 54.6%, 94.3%, and 125.2% for elastic modulus, respectively, compared to subjects without CVRFs.

Conclusions

The clustering of multiple CVRFs has a greater impact on carotid IMT and elasticity than individual components of CVRFs. This suggests that the components of CVRFs interact to synergistically impact carotid IMT and elasticity.     

Oxidative Damage Markers Are Significantly Associated with the Carotid Artery Intima-Media Thickness after Controlling for Conventional Risk Factors of Atherosclerosis in Men

Background

This study aimed to assess the association between oxidative damage markers and carotid artery intima-media thickness (CIMT) after controlling for conventional risk factors of atherosclerosis in multiple logistic regression models.

Methods and Findings

Fifty-one case male participants (CIMT ≥ 0.9 mm) were enrolled during their visits to Korean Genomic Rural Cohort Study of Wonju centers between May 1 and August 31, 2011, along with 51 control participants (CIMT < 0.9 mm) selected using frequency matching by age group. The levels of oxidative damage markers, 8-hydroxy-2′-deoxyquuanosine (8-OHdG), malondialdehyde (MDA), and 8-iso-prostaglandin F2α (Isoprostane), were measured. Conditional logistic regression models were used to evaluate relative relationships between the oxidative damage markers and the risk of high CIMT.

Results

The markers of oxidative lipid (Isoprostane and MDA) and DNA (8-OHdG) damage were associated with CIMT after controlling for the conventional risk factors, including age, low density lipoprotein, body mass index, smoking history, alcohol consumption, and metabolic syndrome (ORs [95% CI] for Isoprostane: 3^rd tertile, 8.47 [2.59-27.67]; for MDA: 3^rd tertile, 8.47 [2.59-27.67]; for 8-OHdG: 3^rd tertile, 5.58 [1.79-17.33]). When all the oxidative damage markers were incorporated in the same logistic regression model, only Isoprostanewas significantly related to CIMT (OR [95% CI]: 4.22 [1.31-13.53] in 2^nd tertile and 14.21 [3.34-60.56] in 3^rd tertile).

Conclusions

In this nested case-control study, the oxidative damage markers of lipid and DNA were associated with CIMT even after controlling for the conventional risk factors of cardiovascular diseases.     

2型糖尿病患者糖化血红蛋白水平与颈动脉内-中膜厚度的相关性

目的:分析2型糖尿病(T2DM)患者糖化血红蛋白(Hb A1c)水平与颈动脉内-中膜厚度(CIMT)的相关性。方法:选择在我院内分泌科住院的T2DM患者328名,对入组患者进行Hb A1c、血生化指标检测以及CIMT测量等。根据CIMT值分为CIMT正常组(0.9 mm)和CIMT增厚组(0.9 mm),并对CIMT的相关危险因素进行多因素Logistic回归分析。结果:(1)328名T2DM患者中,CIMT正常154例,CIMT增厚174例;(2)Pearson相关分析显示,总胆固醇(TC)、Hb A1c水平与IMT值呈正相关(P0.05)。(3)单因素分析示,CIMT正常组和CIMT增厚组两组间年龄(t=4.132,P=0.041)、收缩压(t=8.456,P0.01)、Hb A1c≥9.0%(x~2=9.912,P0.01)、总胆固醇(t=5.549,P=0.018)、甘油三酯(t=6.592,P=0.008)、尿酸(t=9.618,P0.01)、空腹血糖(t=4.592,P=0.037)间差异有统计学意义;(4)多因素Logistic回归分析示,年龄、Hb A1c≥9%、收缩压、总胆固醇是T2DM患者CIMT增厚的独立危险因素(P0.05)。结论:Hb A1c与CIMT增厚明显相关;且Hb A1c≥9%是CIMT增厚的独立危险因素。     

血管内皮功能和颈动脉内膜中膜厚度变化在糖尿病肢动脉闭塞症中的表达意义

目的:研究血管内皮功能与颈动脉内膜中膜厚度在监测和评估糖尿病肢动脉闭塞症病情变化中的作用及临床意义。方法:将2012年10月至2013年10月入院的75例糖尿病肢体动脉闭塞症患者为研究对象,按照病程分为一、二和三期组,各25例,并纳入25例健康者为对照组。测定其体内一氧化氮、内皮素1、6-酮-前列腺素F1a和血栓素B2水平变化,并运用高分辨率超声对患者及对照组颈动脉内膜中膜厚度(IMT)、内皮依赖性舒张功能(EDD)及非内皮依赖性舒张功能(EID)进行检测,分析比较各组间差异性。结果:随着病程变化,健康对照组与三组糖尿病肢体动脉闭塞症患者相比较高,一、二和三期患者的EDD逐渐降低,且差异有统计学意义(P0.01)。三期患者的EID值较健康组、一期及二期患者低,差异有统计学意义(P0.01)。二期与三期患者IMT与对照组相比逐渐升高,差异有统计学意义(P0.01)。各病程糖尿病肢体动脉闭塞症患者的总胆固醇水平、空腹血糖水平、收缩压及舒张压均高于健康对照组(P0.05),而各组间差异无统计学意义。结论:血管内皮功能及颈动脉内膜中膜厚度的变化可反映糖尿病肢体动脉闭塞症的病程发展,可作为这临床诊断与监测的参考指标。     

Urinary miR-29 Correlates with Albuminuria and Carotid Intima-Media Thickness in Type 2 Diabetes Patients

Background

Cell-free microRNAs stably and abundantly exist in body fluids and emerging evidence suggests cell-free microRNAs as novel and non-invasive disease biomarker. Deregulation of miR-29 is involved in the pathogenesis of diabetic nephropathy and insulin resistance thus may be implicated in diabetic vascular complication. Therefore, we investigated the possibility of urinary miR-29 as biomarker for diabetic nephropathy and atherosclerosis in patients with type 2 diabetes.

Methods

83 patients with type 2 diabetes were enrolled in this study, miR-29a, miR-29b and miR-29c levels in urine supernatant was determined by TaqMan qRT-PCR, and a synthetic cel-miR-39 was added to the urine as a spike-in control before miRNAs extraction. Urinary albumin excretion rate and urine albumin/creatinine ratio, funduscopy and carotid ultrasound were used for evaluation of diabetic vascular complication. The laboratory parameters indicating blood glucose level, renal function and serum lipids were also collected.

Results

Patients with albuminuria (n = 42, age 60.62±12.00yrs) showed significantly higher comorbidity of diabetic retinopathy (p = 0.015) and higher levels of urinary miR-29a (p = 0.035) compared with those with normoalbuminuria (n = 41, age 58.54±14.40yrs). There was no significant difference in urinary miR-29b (p = 0.148) or miR-29c level (p = 0.321) between groups. Urinary albumin excretion rate significantly correlated with urinary miR-29a level (r = 0.286, p = 0.016), while urinary miR-29b significantly correlated with carotid intima-media thickness (cIMT) (r = 0.286, p = 0.046).

Conclusion

Urinary miR-29a correlated with albuminuria while urinary miR-29b correlated with carotid intima-media thickness (cIMT) in patients with type 2 diabetes. Therefore, they may have the potential to serve as alternative biomarker for diabetic nephropathy and atherosclerosis in type 2 diabetes.     

Inverse Association of Serum Vitamin D in Relation to Carotid Intima-Media Thickness in Chinese Postmenopausal Women

Objective

This study aimed to investigate the relationship between serum vitamin D level and carotid intima-media thickness (C-IMT) in Chinese postmenopausal women.

Methods

Nine hundred and twenty six Chinese postmenopausal women without carotid artery plaque or history of cardiovascular disease were selected for analysis. Measurements of serum 25 hydroxyvitamin D₃ (25(OH)D₃) concentration and C-IMT were made by electrochemiluminescence immunoassay and B-mode ultrasound, respectively. Trend analysis was conducted according to tertiles of C-IMT.

Results

The median serum 25(OH)D₃ level was 11.03 ng/mL, with an interquartile range of 8.22–14.70. A decreasing trend of serum 25(OH)D₃ level was accompanied by increased C-IMT tertiles (P for trend = 0.001). Correlation analysis found an inverse relationship between serum 25(OH)D₃ level and C-IMT (r = –0.113, P = 0.001). After adjustment for confounding factors, multiple regression analysis showed that serum 25(OH)D₃ level independently and negatively associated with C-IMT (Standard β = –0.112, P < 0.001). Moreover, the inverse correlation of serum 25(OH)D₃ with C-IMT was also found in a subgroup of women with normal glucose tolerance, blood pressure and body mass index, and without undergoing lipid-lowering therapy (standard β = –0.140, P = 0.018).

Conclusions

Serum 25(OH)D₃ level was inversely correlated with C-IMT in Chinese postmenopausal women.     

Auxin Does Not Alter the Permeability of Pea Segments to Tritium-labeled Water

The possibility of an auxin effect on the permeability of pea (Pisum sativum L. ev. Alaska) segments to tritium-labeled water has been investigated by three separate laboratories, and the combined results are presented. We were unable to obtain any indication of a rapid effect of indoleacetic acid on the efflux of ³HHO when pea segments previously “loaded” for 90 minutes with ³HHO were transferred to unlabeled aqueous medium with indoleacetic acid. We were able to confirm that segments pretreated with ³HHO plus indoleacetic acid for 60 to 90 minutes can show an enhanced ³HHO release as compared with minus indoleacetic acid controls. However, this phenomenon appears to be due to an increased uptake of ³HHO during the prolonged indoleacetic acid pretreatment, and therefore we conclude that auxin does not alter the permeability of pea segments to ³HHO in either short term or long term tests. We confirm previous reports that the uptake of ³HHO in pea segments proceeds largely through the cut surfaces, and that the cuticle is a potent barrier to ³HHO flux.     

Associations between Blood Glucose and Carotid Intima-Media Thickness Disappear after Adjustment for Shared Risk Factors: The KORA F4 Study

Objective

The association between blood glucose and carotid intima-media thickness (CIMT) is considered to be established knowledge. We aimed to assess whether associations between different measures of glycaemia and CIMT are actually independent of anthropometric variables and metabolic risk factors. Moreover, we checked published studies for the adjustment for shared risk factors of blood glucose and CIMT.

Methods

Fasting glucose, 2-hour glucose, HbA1c, and CIMT were measured in 31-81-years-old participants of the population-based Cooperative Health Research in the Region of Augsburg (KORA) F4 study in Southern Germany (n = 2,663). CIMT was assessed according to the Rotterdam protocol. Linear and logistic regression models with adjustment for age, sex, anthropometric measures, hypertension, and dyslipidaemia were fitted to assess the association between continuous measures of glycaemia, and categories of glucose regulation, respectively, with CIMT.

Results

We found a 0.10 mm increase (95%-confidence interval: 0.08–0.12) in CIMT in subjects with compared to subjects without diabetes in crude analysis. This increase was not significant in age-sex adjusted models (p = 0.17). Likewise, neither impaired fasting glucose (p = 0.22) nor impaired glucose tolerance (p = 0.93) were associated with CIMT after adjustment for age, sex, and waist circumference. In multivariable adjusted models, age, sex, hypertension, waist circumference, HDL and LDL cholesterol, but neither fasting glucose nor 2-hour glucose nor HbA1c were associated with elevated CIMT. Literature findings are inconclusive regarding an independent association of glucose levels and CIMT.

Conclusion

CIMT is highly dependent on traditional cardiovascular risk factors, but no relationships between blood glucose and CIMT were found after adjustment for age, sex, and anthropometric variables.     

老年高血压患者颈动脉内膜中膜厚度与动态血压参数的相关性

目的:探究老年高血压患者颈动脉内膜中膜厚度(IMT)与动态血压参数间的相关关系,为老年高血压患者的临床治疗提供理论基础。方法:选取2015年1月至2016年1月在我院接受治疗的老年高血压患者204例,根据超声检查结果分为A、B、C三组,每组68例。24 h无创检测患者动态血压参数,包括24h平均收缩压(24h SBP),24 h平均舒张压(24h DBP)、白天平均收缩压(d SBP)、白天平均舒张压(d DBP)、夜间平均收缩压(n SBP)、夜间平均舒张压(n DBP),24h脉压(24h PP)及白天脉压(d PP)、夜间脉压(n PP),记录冠心病的发生率、杓型与非杓型高血压比例,利用Person相关性分析IMT与冠心病发生率及动态血压参数的相关性。结果:收缩压和脉压比较差异均有统计学意义(P0.05),其中B组、C组高于A组,C组高于B组,差异具有统计学意义(P0.05)。非杓型高血压在A组占54.41%,B组占60.29%,C组占79.41%,各组间差异有统计学意义(P0.05);A组、B组、C组冠心病发病率分别为41.18%、54.41%和91.18%,组间比较差异有统计学意义(P0.05)。IMT同冠心病发生率和24h SBP、d SBP、n SBP、24h PP、d PP、n PP呈正相关(r=0.876,0.448,0.378,0.476,0.443,0.491,0.438,P0.05)。结论:老年高血压患者收缩压,脉压升高以及非杓型高血压是造成颈动脉内膜中膜厚度增加的主要原因,同时,IMT与冠心病发病率和动态血压参数间呈正相关关系。     

颈动脉内-中膜厚度对冠状动脉病变的预测价值

目的:探讨颈动脉内-中膜厚度对冠状动脉病变的预测价值。方法:根据冠状动脉造影结果,将183例行冠状动脉造影的患者分为3组:正常组59例为冠状动脉造影阴性;A组54例冠状动脉狭窄率50%;B组70例冠状动脉狭窄率≥50%。根据冠状动脉病变数量将124例冠状动脉狭窄的患者进一步分为单支病变组40例,双支病变组38例和多支病变组46例。所有患者行颈动脉超声检查,测量颈动脉内-中膜厚度。结果:A组、B组的颈动脉内-中膜厚度和冠脉积分(Gensini评分)均明显高于正常对照组,且B组颈动脉内-中膜厚度和Gensini评分均较A组明显增加,差异均有统计学意义(P0.05)。随着冠状动脉狭窄程度的加重,颈动脉内-中膜厚度和Gensini评分逐渐增加。多支病变组、双支病变组IMT值和Gensini评分均显著高于单支病变组(P0.05),而双支病变组与多支病变组比较差异均无统计学意义(P0.05)。颈动脉IMT厚度与冠状动脉病变数量相关性不大,与Gensini评分呈显著性正相关(P0.01)。结论:颈动脉内-中膜厚度能较好地预测冠状动脉病变程度,但不能预测冠状动脉病变范围。     

Impact of Cardiovascular Risk Factors on Carotid Intima-Media Thickness and Degree of Severity: A Cross-Sectional Study

Objective

Age, hypertension, dyslipidemia and diabetes are common cardiovascular risk factors (CVRFs) that contribute to the development of atherosclerosis in cardiovascular system including carotid artery disease. However, the impact of these risk factors on the increased carotid intima-media thickness (cIMT) and degree of carotid severity remains to be further clarified. This study aims to evaluate the relationship between CVRFs and degree of carotid severity and cIMT in high-risk subjects.

Methods

Four thousand and three hundred ninety-four subjects with one or more risk factors were retrospectively reviewed in this study. Patients were divided into different groups based on age, the type and quantity of CVRFs. cIMT and degree of carotid artery stenosis were measured and analyzed based on carotid ultrasound imaging with findings compared to the CVRFs to determine the correlation between these variables.

Results

Aging was significantly associated with degree of severity (P < 0.05) and cIMT was significantly increased with age (P < 0.05). Individual CVRF analysis shows that hypertension was more related to the degree of severity than dyslipidemia and diabetes with corresponding abnormal cIMT rates being 79.39%, 72.98% and 32.37%, respectively. The prevalence of carotid atherosclerosis were 20.06%, 22.88% and 28.63%, respectively corresponding to patients with zero, one and more than one chronic diseases. The percentage of abnormal cIMT in hypertensive patient group with dyslipidemia is significantly higher than the other groups (P< 0.05).

Conclusions

This study shows a direct correlation between the degree of carotid severity and cIMT and cardiovascular risk factors, especially with age and hypertension. Carotid atherosclerosis is closely related to the number of cardiovascular risk factors.     

Both Serum Apolipoprotein B and the Apolipoprotein B/Apolipoprotein A-I Ratio Are Associated with Carotid Intima-Media Thickness

Background

Previous studies indicated that apolipoprotein measurements predicted cardiovascular disease (CVD) risk; however, associations between apolipoproteins and carotid intima-media thickness (CIMT) were less explored.

Methodology and Principal Findings

The cross-sectional study included 6069 participants aged 40 years or older with NGT from Shanghai, China. Serum fasting traditional lipids (total cholesterol [TC], low-density lipoprotein cholesterol [LDL-C], high-density lipoprotein cholesterol [HDL-C] and triglycerides [TG]), apoA-I and apoB were assessed. A high-resolution B-mode ultrasonography was performed to measure CIMT. We found CIMT increased progressively across the quartiles of serum apoB (p for trend <0.0001). In logistic regression, concentrations of apoB (odds ratio [OR] 1.27, 95% confidence interval [CI] 1.18–1.36), TC (OR 1.23, 95% CI 1.14–1.32), LDL-C (OR 1.25, 95% CI 1.16–1.34) and TG (OR 1.11, 95% CI 1.04–1.20) were significantly related to elevated CIMT after adjusted for age and sex. Meanwhile, the apoB/apoA-I ratio (OR 1.25, 95% CI 1.17–1.34) related to elevated CIMT. ApoB (OR 1.23, 95% CI 1.00–1.51) and the apoB/apoA-I ratio (OR 1.19, 95% CI 1.04–1.36) remained significantly associated with elevated CIMT, after adjusted for the traditional CVD risk factors including traditional lipids.

Conclusions and Significance

There were significant associations between serum apoB, the apoB/apoA-I ratio and elevated CIMT. Serum apoB and the apoB/apoA-I ratio might be independent predictors of early atherosclerosis in NGT.     

Bilateral Common Carotid Artery Ligation Transiently Changes Brain Lipid Metabolism in Rats

Brain lipid metabolism was studied in rats following permanent bilateral common carotid artery ligation (BCCL), a model for chronic cerebral hypoperfusion. Unesterified (free) fatty acids (uFA) and acyl-CoA concentrations were measured 6 h, 24 h, and 7 days after BCCL or sham surgery, in high energy-microwaved brain. In BCCL compared to sham rats, cytosolic phospholipase A(2) (cPLA(2)) immunoreactivity in piriform cortex, and concentrations of total uFA and arachidonoyl-CoA, an intermediate for arachidonic acid reincorporation into phospholipids, were increased only at 6 h. At 24 h, immunoreactivity for secretory phospholipase A(2) (sPLA(2)), which may regulate blood flow, was increased near cortical and hippocampal blood vessels. BCCL did not affect levels of brain IB(4)+ microglia, glial fibrillary acidic protein (GFAP)+ astrocytes, cyclooxygenase-2 (COX-2) immunoreactivity at any time, but increased cPLA(2) immunoreactivity in one region at 6 h. Thus, BCCL affected brain lipid metabolism transiently, likely because of compensatory sPLA(2)-mediated vasodilation, without producing evidence of neuroinflammation.     

由左颈总动脉导管经肾动脉的大鼠肾脏无创伤给药法探讨

目的建立一种大鼠肾脏无创伤性局部血管给药的新方法,并对其给药后成活率和损伤性进行观察。方法 16只Wistar大鼠,用PE10导管经大鼠左侧颈总动脉-降主动脉-胸主动脉-腹主动脉,抵达肾动脉直接给药。统计其成活率并对给药的肾动脉血管行病理学观察。结果大鼠成活率可达87.5%,且不会造成肾动脉血栓或血管内皮损伤。结论该法可以成功的实现大鼠肾动脉远距离插管,零距离无创伤性局部血管给药,同时还可以推广用于腹腔的某些其它脏器甚至更远的后肢。     

血管内超声评价川崎病晚期患儿颈动脉功能、颈动脉内膜-中膜厚度和组织特征的临床研究

摘要 目的：探究血管内超声评价川崎病晚期患儿颈动脉功能、颈动脉内膜-中膜厚度和组织特征的临床价值。方法：选取81例川崎病晚期患儿作为本研究的川崎病组,同时选择同一时期的81例健康体检者作为本研究的对照组。所有受试者均通过血管内超声检查,对比分析两组一般临床资料、颈动脉功能、颈动脉内膜-中膜厚度、组织特征、颈动脉血流动力学和血管内皮功能。结果：川崎病组和对照组儿童的一般临床资料比较,差异均无统计学意义（P>0.05）。川崎病组患儿颈动脉血管僵硬度、脉搏波传导速度、颈动脉内膜-中膜厚度、血管的压力-应变弹性系数、硬度指数、颈动脉阻力指数和颈动脉僵硬度均显著高于对照组,而血管顺应性、血管径向应变率、动脉最大剪切率、颈动脉最小剪切率、颈动脉搏动指数和血管内皮依赖性舒张功能则显著小于对照组（P<0.05）。结论：血管内超声可有效评价川崎病晚期患儿颈动脉功能、颈动脉内膜-中膜厚度和组织特征,能够为后续疾病的治疗及预后提供重要参考,值得推广使用。