心血管疾病危险人群中微量白蛋白尿与颈动脉粥样硬化及外周动脉疾病的关系

目的评价存在心血管疾病危险因素但无明确心脑血管疾病的患者中,微量白蛋白尿(MA)与颈动脉粥样硬化(AS)及外周动脉疾病(PAD)的关系。方法采用横断面研究,277例住院有心血管疾病危险因素但无明确心脑血管疾病的患者,根据其尿白蛋白/肌酐(UACR)水平分为两组:微量白蛋白尿组(MA组,男:17 mg/g≤UACR≤250 mg/g;女:25 mg/g≤UACR≤355 mg/g)及不伴微量白蛋白尿组(NMA组,男:00.05)。结论心血管疾病高危患者中,伴MA者颈总动脉AS和PAD的危险性均增加,MA与颈总动脉AS的关系较与PAD的关系更加明显。     

心血管病危险因素与10年后颈动脉粥样硬化的关系

目的探讨基线心血管病危险因素水平及变化与10年后颈动脉粥样硬化患病率的关系。方法1992年和2002年对北京大学社区1323人进行了心血管病危险因素调查,并于2002年进行了颈动脉超声检查;以颈动脉内中膜（IMT）增厚和粥样斑块形成作为评价指标。结果（1）随着基线心血管病危险因素水平的上升,10年后颈动脉粥样硬化患病率持续上升;年龄、吸烟、高血压和高胆固醇血症是颈动脉粥样硬化的独立影响因素;（2）10年后颈动脉粥样硬化患病率随着基线危险因素聚集个数的增加而升高（P〈0．001）;（3）1992年和2002年均有危险因素者的颈动脉IMT增厚和粥样斑块患病率分别为67．1％和42．6％,其患病危险分别是2次调查均无危险因素者的1．7倍和3．1倍。结论传统危险因素对心血管病和颈动脉粥样硬化均产生影响,但强度不同,颈动脉粥样硬化可作为动脉粥样硬化性疾病发病危险的早期评价指标。     

Sex‐specific risk factors of carotid atherosclerosis progression in a high‐risk population of cardiovascular disease

BackgroundThe progression of carotid intima‐media thickness (cIMT) and plaques are associated with cardiovascular health, especially for high‐risk population of cardiovascular disease (CVD).HypothesisRisk factors for atherosclerosis may vary by sex. This study aimed to investigate the sex‐specific risk factors of cIMT and plaque progression.MethodsWe selected subjects who were identified as high‐risk population of CVD, and collected their carotid ultrasound data and baseline characteristics. Linear regression and logistic regression analyses were used to identify risk factors for cIMT and plaque progression. Sex‐specific risk factors were identified respectively.ResultsA total of 7908 participants were included. The mean age was 57.75 ± 9.45 years and 61.51% were female. During mean follow‐up of 1.92 ± 0.89 years, the median annual cIMT change rate was −7.25 μm/year. Seven hundred and fifteen subjects free from plaques at baseline developed plaque. Age, smoking, hypertension, and diabetes were common risk factors for carotid atherosclerosis progression in all participants. Smoking and alcohol drinking were significantly associated with increased cIMT change in women, while hypertension and antihypertensive medication were significant in men. Increased total cholesterol and diabetes were significantly associated with new plaque presence in women, while smoking, increased triglyceride, and dyslipidemia were significant in men (p ˂ .05 for all cases). The association of baseline cIMT and smoking with annual cIMT change rate and increased total cholesterol with new plaque presence were significantly differentiated between both sexes (p for interaction ˂ .05).ConclusionsThe risk factors for cIMT and plaque progression differed by sex.     

Traditional and nontraditional cardiovascular risk factors are associated with atherosclerosis in rheumatoid arthritis

OBJECTIVE: To determine the association between cardiovascular (CV) risk factors and atherosclerosis in patients with rheumatoid arthritis (RA). METHODS: The common carotid artery intima-media thickness (IMT) and plaque were evaluated by high resolution B-mode ultrasound in 74 consecutive patients with RA. Patients with an IMT > or = 0.60 mm and plaque were considered to have atherosclerosis and advanced atherosclerosis, respectively. Traditional risk factors as well as an extensive range of other clinical and laboratory variables were recorded. Methods used to analyze the data included logistic regression, classification and regression tree (CART), and factor analyses. RESULTS: Fifty-three (72%) patients had atherosclerosis, 23 (31%) had plaque, and 21 (28%) were free of atherosclerosis. In multivariable analysis, age and hypertension were independently associated with atherosclerosis and plaque (p < or = 0.04). Radiographic scores and polymorphonuclear cell counts were also strongly associated with plaque (p < or = 0.008). Uric acid concentrations were associated with atherosclerosis, and hypothyroidism was associated with plaque, both with borderline significance (p = 0.078 and 0.052, respectively). In CART analysis, age, polymorphonuclear cell counts, and joint space narrowing in the hands were considered to be the most important determinants of plaque, and 62% of patients could be classified correctly after cross-validation. Factor analysis (varimax rotation) revealed that age and uric acid levels were related to low glomerular filtration rates, polymorphonuclear cell counts to disease activity, and radiographic scores to disease duration, and hypertension was associated with high cholesterol levels. The 10-year risk for a coronary event estimated using the Framingham risk equation (calculated from traditional risk factors) was only 7% in patients with plaque. CONCLUSION: Atherosclerosis in RA is associated with the traditional CV risk factors age and hypertension, as well as nontraditional risk factors comprising current inflammation as reflected by polymorphonuclear cell counts, cumulative inflammation as disclosed by radiographic scores, and, to a lesser extent, with uric acid levels and hypothyroidism. Multiple risk factor assessment equations that are based on traditional risk factors only are likely to be insufficient to capture CV risk extent in RA.     

Magnesium, cardiovascular risk factors and atherosclerosis

Magnesium plays essential roles in fundamental cellular reaction and physiological regulation of vascularture, nervous system, and organs. Accumulating findings have revealed that magnesium deficiency relates cardiovascular risk factors including elevated blood pressure, insulin resistance, dyslipidemia, platelet aggregation, and inflammatory reaction, and leads to atherosclerosis.     

老年高血压颈动脉粥样硬化与心血管危险因素的相关性研究分析

目的研究老年高血压患者颈动脉粥样硬化、斑块形成与心血管危险因素以及脑卒中发生之间的相关性。方法随机调查204例老年高血压患者,用颈动脉超声检查分析颈动脉硬化、斑块形成与心血管病危险因素及脑卒中的相关性。结果颈动脉硬化、斑块形成与收缩压、脉压呈正相关(r=0.21、0.26,P<0.01),与高血压病程、糖化血红蛋白(HbA1c)亦呈正相关(r=0.17、0.30,P<0.05),与尿酸、胆红素、高密度脂蛋白胆固醇(HDL-C)及脑卒中均有关。结论上述心血管危险因素在老年人颈动脉粥样硬化、斑块形成的发生、发展中起到一定的作用,控制这些危险因素有益于减少脑卒中发生。     

Effect of carotid atherosclerosis screening on risk stratification during primary cardiovascular disease prevention

We investigated the effect that carotid plaque area (CPA) and intima media thickness (IMT) measurements have on risk stratification in 95 patients with intermediate Framingham scores (6% to 19%). The risk status of each patient was adjusted to be low, intermediate, or high based on the results of carotid ultrasound. After carotid testing, 44% (IMT) and 45% (CPA) of the intermediate-risk patients were stratified as low risk, and 22% (IMT) and 40% (CPA) were stratified as high risk. Using the threshold values derived from our laboratory, 28% (IMT) and 45% (CPA) of patients were stratified as low risk, and 35% (IMT) and 27% (CPA) were identified as high risk. These tests adjust the risk strata of >/=63% of patients deemed as having intermediate risk by Framingham scores.     

中老年人群颈动脉粥样硬化分布特点及影响因素分析

目的 探讨我国中老年人群颈动脉粥样硬化性病变的分布特点以及与心血管病危险因素的关系.方法 对中美协作研究队列中的石景山人群和多省市队列中的北京大学社区人群2007年9至10月期间的心血管病危险因素以及颈动脉超声的横断面复查结果进行分析.参加调查人数共计2681名,年龄43～81岁.结果 (1)颈动脉内中膜36点厚度平均值为0.68 mm,最大值为1.07 mm.(2)颈动脉斑块检出率为60.3%.男女两性颈动脉膨大部斑块检出率分别为61.2%和51.6%(x~2=23.44,P<0.01).颈内动脉斑块检出率分别为24.7%和12.2%(x~2=69.57,P<0.01).颈总动脉斑块检出率分别为20.9%和13.8%(x~2=23.18,P<0.01).(3)多因素分析:男女两性颈动脉内中膜厚度平均值和最大值随着收缩压、血糖及低密度脂蛋白胆固醇水平的增加而增加.与无危险因素者比较,高血压、糖尿病、吸烟和高低密度脂蛋白胆固醇血症者颈动脉斑块检出率较高(P<0.05).结论 我国中老年人群颈动脉粥样硬化普遍存在,且与多个心血管病危险因素有关联.     

中老年人群颈动脉粥样硬化分布特点及影响因素分析

目的 探讨我国中老年人群颈动脉粥样硬化性病变的分布特点以及与心血管病危险因素的关系.方法 对中美协作研究队列中的石景山人群和多省市队列中的北京大学社区人群2007年9至10月期间的心血管病危险因素以及颈动脉超声的横断面复查结果进行分析.参加调查人数共计2681名,年龄43～81岁.结果 (1)颈动脉内中膜36点厚度平均值为0.68 mm,最大值为1.07 mm.(2)颈动脉斑块检出率为60.3%.男女两性颈动脉膨大部斑块检出率分别为61.2%和51.6%(x~2=23.44,P<0.01).颈内动脉斑块检出率分别为24.7%和12.2%(x~2=69.57,P<0.01).颈总动脉斑块检出率分别为20.9%和13.8%(x~2=23.18,P<0.01).(3)多因素分析:男女两性颈动脉内中膜厚度平均值和最大值随着收缩压、血糖及低密度脂蛋白胆固醇水平的增加而增加.与无危险因素者比较,高血压、糖尿病、吸烟和高低密度脂蛋白胆固醇血症者颈动脉斑块检出率较高(P<0.05).结论 我国中老年人群颈动脉粥样硬化普遍存在,且与多个心血管病危险因素有关联.     

中老年人群颈动脉粥样硬化分布特点及影响因素分析

目的 探讨我国中老年人群颈动脉粥样硬化性病变的分布特点以及与心血管病危险因素的关系.方法 对中美协作研究队列中的石景山人群和多省市队列中的北京大学社区人群2007年9至10月期间的心血管病危险因素以及颈动脉超声的横断面复查结果进行分析.参加调查人数共计2681名,年龄43～81岁.结果 (1)颈动脉内中膜36点厚度平均值为0.68 mm,最大值为1.07 mm.(2)颈动脉斑块检出率为60.3%.男女两性颈动脉膨大部斑块检出率分别为61.2%和51.6%(x~2=23.44,P<0.01).颈内动脉斑块检出率分别为24.7%和12.2%(x~2=69.57,P<0.01).颈总动脉斑块检出率分别为20.9%和13.8%(x~2=23.18,P<0.01).(3)多因素分析:男女两性颈动脉内中膜厚度平均值和最大值随着收缩压、血糖及低密度脂蛋白胆固醇水平的增加而增加.与无危险因素者比较,高血压、糖尿病、吸烟和高低密度脂蛋白胆固醇血症者颈动脉斑块检出率较高(P<0.05).结论 我国中老年人群颈动脉粥样硬化普遍存在,且与多个心血管病危险因素有关联.     

2型糖尿病合并颈动脉血管病患者的危险因素分析

目的:探讨C肽与2型糖尿病颈动脉血管并发症的关系及2型糖尿病患者颈动脉血管病变的危险因素。方法:对2型糖尿病患者100例颈动脉进行检测,将血管病变组50例与非颈血管病变组50例进行对照,记录患者年龄、病程、吸烟状况、血压、空腹、餐后血耱、糖化血红蛋白、血脂及空腹餐后c肽。结果:糖尿病颈血管病变组患者年龄大、吸烟多、病程长、低密度脂蛋白胆固醇(LDL-C)明显升高、空腹及餐后C肽明显降低。结论:年龄、吸烟、病程、高血糖、高血脂、高血压及低C肽水平是糖尿病颈动脉血管病变的危险因素。     

老年人颈动脉斑块形态学特点与心血管危险因素的相关性研究

目的 探讨老年人颈动脉狭窄程度及颈动脉斑块的形态学特点与心血管危险因素间的相关性.方法 选择我院行脑血管造影检查的老年患者321例,年龄60～83岁,参考颈动脉彩色超声检查结果,分为颈动脉粥样硬化组(斑块组)和颈动脉正常对照组,分析与年龄、性别、总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、尿酸、C-反应蛋白(CRP)、同型半胱氨酸(HCY)、高血压、糖尿病、吸烟、饮酒等心血管病危险因素的相关性.斑块组按颈动脉狭窄程度、斑块表面光顺度等与心血管危险因素进行相关性分析.并随访1年,前瞻性分析各亚组患者心、脑血管事件发生情况.结果 斑块组256例,对照组65例,斑块组TC、LDL-C、尿酸、CRP、吸烟、饮酒、高血压、糖尿病等心血管危险因素均高于对照组;在亚组分析中,年龄、吸烟和糖尿病与颈动脉狭窄程度呈正相关,而CRP、LDL-C、吸烟、糖尿病与颈动脉斑块表面光顺度相关.斑块组46例(18.0%)发生脑血管事件,32例(12.5%)发生心血管事件,颈动脉狭窄程度与脑血管事件呈正相关,而与心血管事件发生差异无统计学意义.颈动脉斑块表面光顺度与心、脑血管事件均呈正相关.结论 老年人颈动脉粥样硬化斑块的发生、发展与心血管危险因素关系密切,颈动脉斑块表面光顺度形态学特点在一定程度上较狭窄程度更能反应老年人动脉粥样硬化水平,并与心、脑血管事件的发生密切相关.     

老年人颈动脉斑块形态学特点与心血管危险因素的相关性研究

目的 探讨老年人颈动脉狭窄程度及颈动脉斑块的形态学特点与心血管危险因素间的相关性.方法 选择我院行脑血管造影检查的老年患者321例,年龄60～83岁,参考颈动脉彩色超声检查结果,分为颈动脉粥样硬化组(斑块组)和颈动脉正常对照组,分析与年龄、性别、总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、尿酸、C-反应蛋白(CRP)、同型半胱氨酸(HCY)、高血压、糖尿病、吸烟、饮酒等心血管病危险因素的相关性.斑块组按颈动脉狭窄程度、斑块表面光顺度等与心血管危险因素进行相关性分析.并随访1年,前瞻性分析各亚组患者心、脑血管事件发生情况.结果 斑块组256例,对照组65例,斑块组TC、LDL-C、尿酸、CRP、吸烟、饮酒、高血压、糖尿病等心血管危险因素均高于对照组;在亚组分析中,年龄、吸烟和糖尿病与颈动脉狭窄程度呈正相关,而CRP、LDL-C、吸烟、糖尿病与颈动脉斑块表面光顺度相关.斑块组46例(18.0%)发生脑血管事件,32例(12.5%)发生心血管事件,颈动脉狭窄程度与脑血管事件呈正相关,而与心血管事件发生差异无统计学意义.颈动脉斑块表面光顺度与心、脑血管事件均呈正相关.结论 老年人颈动脉粥样硬化斑块的发生、发展与心血管危险因素关系密切,颈动脉斑块表面光顺度形态学特点在一定程度上较狭窄程度更能反应老年人动脉粥样硬化水平,并与心、脑血管事件的发生密切相关.     

老年人颈动脉斑块形态学特点与心血管危险因素的相关性研究

目的 探讨老年人颈动脉狭窄程度及颈动脉斑块的形态学特点与心血管危险因素间的相关性.方法 选择我院行脑血管造影检查的老年患者321例,年龄60～83岁,参考颈动脉彩色超声检查结果,分为颈动脉粥样硬化组(斑块组)和颈动脉正常对照组,分析与年龄、性别、总胆固醇(TC)、三酰甘油(TG)、高密度脂蛋白胆固醇(HDL-C)、低密...     

颈动脉粥样硬化与缺血性脑血管病的关系

1对象与方法1.1研究对象选择2003年10月至2005年6月,在山东省生建八三医院住院的缺血性脑血管病患者130例,其中男78例,女52例。年龄为32~80岁,平均(64±6)岁,分为脑梗死组96例(大面积梗死42例,基底核腔隙性梗死51例,脑干及小脑梗死3例),短暂性脑缺血发作(TIA)组34例(颈动脉系统25例,椎-基底动脉系6例,并存发生3例)。所有患者均经头部CT或MRI证实,脑梗死和TIA的诊断均符合1995年第四届全国脑血管疾病学术会议修订的诊断标准[1]。对照组选择同期住院的无缺血性脑血管病危险因素及经动脉超声检查无斑块者89例,其中,男61例,女28例。年龄为3…     

Cardiovascular risk factors and carotid atherosclerosis detected by ultrasonography

OBJECTIVES: To assess the frequency of carotid atherosclerosis and its relation to cardiovascular risk factors in a general elderly population of Mexico City. MATERIAL AND METHODS: B-mode ultrasonography was performed to investigate carotid atherosclerosis in 145 CUPA (a research project) participants, between July 1993 and January 1996. The outcome was then related to cardiovascular risk factors. RESULTS: Prevalence of ultrasound-detected carotid atherosclerosis was 64.8%. Intimal-medial thickening was detected in 64 subjects (44.1%) and carotid plaques in 82 (56.5%); Fifty-two subjects had both intimal-medial thickening and plaques. However, only 8 subjects had carotid plaques with severe stenosis (5.5%). There were no significant differences in the prevalence of atherosclerotic lesions (male 61.9%, female 66.0%). Carotid atherosclerosis was significantly associated with age (p < 0.0001), high blood pressure (p < 0.001), isolated systolic hypertension (p = 0.01), hypercholesterolemia (p = 0.04), and diabetes mellitus (p = 0.06). Prevalence of carotid atherosclerosis increased progressively with the number of vascular risk factors. CONCLUSIONS: There was a high prevalence of carotid atherosclerosis in this general elderly population of Mexico City, and was almost equal to that reported in developed western countries. Age, hypertension, hypercholesterolemia, and diabetes were the strongest predictors of atherosclerosis.