老年患者颈动脉粥样硬化与冠状动脉病变的相关性

目的　评价老年患者颈动脉与冠状动脉粥样硬化的相关性。方法　对 81例接受冠状动脉造影检查的老年患者进行颈动脉超声检测。结果　冠心病患者颈动脉内膜中层厚度 (IMT)值较对照组明显增大。随冠状动脉病变加重 ,斑块的严重程度增加 ,内膜中层厚度呈增厚趋势。颈总动脉IMT与改良Gensini评分呈正相关。结论　老年患者颈动脉与冠脉粥样硬化之间存在较密切的联系     

颈动脉粥样硬化和肱动脉内皮功能与冠状动脉病变的关系

目的 探讨颈动脉不同部位内膜中膜厚度及斑块积分,反应性充血后肱动脉血管内径变化与冠状动脉粥样硬化程度的关系,从而为临床筛查冠状动脉粥样硬化积累新的临床资料与经验.方法 入选对象31例,依冠状动脉积分分为高、中、低三组,对每组对象行超声检测颈动脉不同部位内膜中膜厚度和肱动脉血流介导的血管舒张功能.结果 颈动脉各部位内膜中膜厚度与冠状动脉粥样硬化病变程度呈正相关,且分叉处的内膜中膜厚度与冠心病有更强的相关性(r=0.679,P<0.01);颈动脉粥样斑块积分与冠状动脉粥样硬化病变程度呈正相关,颈动脉分叉处最易形成斑块(P<0.05);肱动脉血管内皮舒张功能与冠状动脉粥样硬化病变程度呈负相关(r=-0.646,P<0.01).硝酸甘油诱导的非内皮依赖性血管舒张功能在三组间虽呈现逐渐减弱的趋势,但未达到统计学差异(P>0.05).结论 颈动脉内膜中膜厚度及肱动脉血流介导的血管舒张功能测定可较好地反映冠状动脉硬化程度.     

Relationship between mitral annular calcification and severity of carotid atherosclerosis in patients with symptomatic ischemic cerebrovascular disease

OBJECTIVES: Many studies have reported the association between mitral annular calcification (MAC) and stroke. MAC has been speculated to be a direct embolic source of stroke. Recently, the association between MAC and atherosclerosis in the coronary artery, aorta, and carotid artery has been reported. This prospective study investigated the association between MAC and severity of carotid atherosclerosis in patients with symptomatic ischemic cerebral disease to evaluate the association between MAC and atherosclerosis as a cause of stroke. METHODS: We studied 377 patients with ischemic cerebral disease (253 men, 124 women, mean age 68 +/- 11 years) who underwent echocardiography to determine the presence of MAC and carotid ultrasonography to determine the severity of carotid atherosclerosis. Plaque score was the sum of the maximum intimamedia thickness in the common carotid region, the bifurcation bulb region, and the internal carotid artery region, including both right and left arteries. RESULTS: MAC was found in 86 patients, and was more frequent in women, the elderly, and patients with diabetes or hyperlipidemia (p < 0.05). Plaque score was higher in patients with than without MAC (8.3 +/- 5.8 vs 5.2 +/- 5.2 mm, p < 0.001). Multivariate regression analysis identified MAC (r = 0.26, p < 0.0001), female sex (r = -0.12, p = 0.03), and age (r = 0.23, p < 0.0001) as independently associated with plaque score. CONCLUSIONS: MAC is independently associated with severity of carotid atherosclerosis in patients with symptomatic ischemic cerebral disease. This association suggests MAC may be indirectly related to cerebrovascular disease as a marker of the presence of progressive arteriosclerosis for thromboemboli causing stroke.     

Interrelation between the extent of atherosclerosis in the thoracic aorta, carotid intima-media thickness and the extent of coronary artery disease

Intima-media thickness (IMT) of the common carotid artery and atherosclerosis of the thoracic aorta have been shown to correlate with coronary artery disease (CAD). This study compares the relation between wall changes in the thoracic aorta and the carotid arteries and the angiographic severity and extent of atherosclerotic lesions in the coronary arteries in patients with verified CAD. Atherosclerotic wall changes in the carotid arteries and the thoracic aorta were measured by B-mode ultrasonography and transesophageal echocardiography (TEE), respectively, in 37 subjects aged 65+/-10 years with angiographically verified CAD. The mean value of the common carotid IMT of the right and left sides was 0.87+/-0.21 mm. All subjects had carotid plaques. TEE detected grades II-IV atherosclerotic plaques in the thoracic aorta in 32 of the 37 (86%) patients. A significant correlation was seen between the extent of coronary artery stenosis and aortic plaques score (r=0.46, p=0.008). Mean carotid IMT was also significantly correlated with coronary artery stenosis extent score (r=0.44, p=0.007). Moreover, a significant correlation was seen between the aortic plaque score and the mean carotid IMT (r=0.39, p=0.02). In conclusion, we found a clear and significant relationship between wall changes in the thoracic aorta, common carotid IMT and the angiographic extent of coronary artery stenosis in patients with severe CAD. These findings indicate a potential of B-mode ultrasonography of the carotid arteries and transesophageal echocardiographic aortic examination in the diagnostic and prognostic evaluation of patients with suspected CAD.     

冠心病患者颈动脉粥样硬化与冠状动脉造影的关系

目的评价颈动脉粥样硬化与冠状动脉性心脏病(冠心病)的关系。方法对冠状动脉造影证实的冠心病患者153例(冠心病组)和非冠心病者(正常组)42例进行双侧颈动脉超声检查,测定血管后壁内膜-中膜厚度(inteima-media thickness,IMT),记录斑块数目,并计算斑块积分,同时冠心病组按血管狭窄累及主要病变血管支数分为单支病变亚组(63例)、双支病变亚组(49例)、3支病变亚组(41例)。结果冠心病组斑块发生率[68%(104/153) vs.11.9%(5/42),P<0.05]、颈动脉IMT[(1.11±0.19)mm vs.(0.82±0.06)mm,P<0.05]、斑块积分[(5.03±3.33)分vs.(1.11±0.75)分,P<0.05]和Gensini评分[(21.7±10.3)分vs.(0.0±0.0)分,P<0.05]比正常组高,差异有统计学意义。冠心病3支病变亚组和双支病变亚组斑块发生率、颈动脉IMT、斑块积分和Gensini评分均比单支病变亚组高,差异有统计学意义(P<0.05)。冠心病、原发性高血压、糖尿病、低密度脂蛋白、吸烟、肥胖与颈动脉IMT呈显著正相关(P<0.05)。结...     

Decreased carotid intima-media thickness in patients with coronary artery ectasia compared with patients with coronary artery disease

BACKGROUND: Although atherosclerosis is supposed to be responsible for more than 50% of coronary artery ectasia, the precise pathology of coronary artery ectasia is not clearly understood. A histopathological examination of ectatic segments has revealed mainly destruction of the media layer of the artery. In the present study, we assessed carotid intima-media thickness and common carotid artery diameter in patients with and without coronary artery ectasia. MATERIALS AND METHODS: Thirty-five consecutive patients with coronary artery ectasia and coronary artery disease and 35 age and sex-matched patients with coronary artery disease alone were included in the study. The common carotid artery was studied as the longitudinal plane within 10 mm from the bifurcation of the common carotid artery. The intima-media thickness was measured in the far wall at end-diastole from the B-mode screen to a point within the 10-mm segment proximal to the bifurcation by one investigator blinded to clinical data. RESULTS: No significant differences with respect to age, body mass index, hypertension, diabetes mellitus, hypercholesterolemia and smoking habits were observed between the two groups studied. Intima-media thickness of the common carotid artery of the patients with coronary artery ectasia was significantly lower than that of the patients with coronary artery disease alone (0.71 +/- 0.13 vs. 0.77 +/- 0.09 mm, respectively, P = 0.04). CONCLUSION: Decreased intima-media thickness of the carotid artery in patients with coronary artery ectasia and coronary artery disease may have pathogenic mechanisms different from coronary artery disease per se.     

颈动脉粥样硬化对冠状动脉病变的预测分析

目的探讨颈动脉粥样硬化对冠状动脉病变的预测价值.方法对191例确诊为冠心病的患者及175例正常对照者行颈动脉超声检查,依冠状动脉造影结果分为对照组与冠心病单支病变组、双支病变组及多支病变组,比较各组间颈动脉内膜-中膜厚度及粥样硬化程度;并根据颈动脉粥样硬化的程度预测冠心病的发生、发展情况.结果对照组与冠心病各组在左侧内膜-中膜厚度、斑块发生率和狭窄率上存在差并(P＜0.05),而且冠状动脉病变支数越多颈动脉粥样硬化的程度也越重.以颈动脉斑块分级计分大于1、2和3分为标准预测冠心病的阳性预测值分别是68.5%、73.2%和74.6%.结论以上提示颈动脉粥样硬化是冠状动脉粥样硬化有价值的预测因素,通过颈动脉粥样硬化程度可预测冠状动脉病变的存在及其严重程度.     

高频超声评价颈动脉粥样硬化与冠状动脉病变的关系

目的利用高频超声检测颈动脉内中膜厚度(IMT)、斑块形成情况,并与冠状动脉(冠脉)病变程度的关系进行分析。方法应用ASPEN彩色多普勒超声诊断仪,对428例健康人(对照组)及89例冠心病患者(冠心病组)进行颈动脉IMT、斑块形成的检测。冠心病组患者以冠脉病变支数分为3个亚组。结果冠心病组患者颈动脉IMT为(1.19±0.14)mm,而对照组为(0.92±0.13)mm,(P<0.01);IMT增厚检出率及斑块形成检出率冠心病组为43.21%、74.65%,而对照组为14.49%、34.35%,(P<0.01)。1支冠脉病变组IMT为(1.00±0.014)mm,斑块形成检出率为42.86%;2支冠脉病变组IMT为(1.15±0.018)mm,斑块形成检出率为65.52%;3支及以上冠脉病变组IMT为(1.31±0.018)mm,斑块形成检出率为74.49%,(P<0.01)。结论颈动脉IMT增厚、斑块形成对冠心病具有预测价值;颈动脉IMT增厚、斑块形成与冠脉病变严重程度呈正相关。     

雌激素对绝经期冠心病妇女颈动脉粥样硬化斑块的影响

目的 :观察绝经期冠心病妇女雌激素水平和颈动脉粥样硬化斑块的关系。方法 :采用彩色多普勒超声检测绝经期冠心病患者 5 0例和绝经期非冠心病患者 15例的颈动脉壁斑块、内中膜厚度及血流参数 ,并将冠心病患者随机分为雌激素治疗组和对照组。结果 :绝经期冠心病患者颈动脉壁的斑块显著大于绝经期非冠心病患者 ,其颈动脉内中膜的厚度也显著超过绝经期非冠心病患者 ;应用雌激素治疗后 ,雌激素治疗组的斑块记分和内中膜厚度均有所减小 ;血流参数在对照组和治疗组之间无显著差异。结论 :雌激素对绝经期冠心病患者的颈动脉粥样硬化有消退作用。     

脉压差对高血压病患者颈动脉粥样硬化的作用

目的 :高血压病是冠状动脉粥样硬化的危险因素 ,人们普遍关心收缩压与舒张压和动脉粥样硬化与冠心病的关系 ,而对于脉压尚未进行广泛的研究。方法 :本文通过多普勒超声检查高血压病患者颈动脉粥样硬化的方法 ,观察了 64例高血压病患者脉压差与颈动脉粥样硬化斑块的发生率及内中膜厚度的相互关系。结果 :脉压差高的患者其颈动脉粥样硬化斑块的发生率及内中膜厚度也高 (P <0 0 5 ,P <0 0 1)。结论 :脉压差与颈动脉粥样硬化斑块和内中膜厚度相关 ,脉压差可能参与动脉粥样硬化的形成和发展。     

Carotid and femoral atherosclerotic lesions in patients with coronary heart disease confirmed by angiography

INTRODUCTION: Clinically evident atherosclerosis is preceded by preclinical changes in the arterial wall. These changes are characterised by increased thickness of the intima-media complex (IMT). AIMS: A complex ultrasound assessment of the peripheral vessels as well as an attempt to find ultrasound parameters correlating with the burden of atherosclerotic lesions of the coronary arteries. METHODS: 231 patients who underwent both coronary angiography and ultrasound examination of the following arteries: common carotid artery (CCA), carotid bulb and common femoral artery (CFA) were enrolled. The IMT value, presence of plaque and Doppler blood flow parameters were evaluated. Selected clinical and biochemical risk factors of atherosclerosis were assessed. Two groups of patients were analysed: 200 patients with coronary artery disease confirmed by angiography (study group), and 31 patients with normal coronary arteries (control group). RESULTS: Significantly higher values of the IMT in the peripheral arteries were observed in patients with coronary artery lesions than in those without (CCA - 0.91 vs 0.61 mm, carotid bulb -- 1.31 vs 0.67 mm, CFA -- 1.38 vs 0.63 respectively, p<0.0001). Atherosclerotic plaques were present only in patients with coronary artery disease. Additionally, IMT values of the CCA, carotid bulb and CFA were significantly higher in patients with severe coronary artery disease (three vessel disease) than in patients with lesions in one or two coronary arteries. CONCLUSIONS: Patients with coronary lesions present with increased IMT values and higher plaque occurrence. Complex ultrasound evaluation of different peripheral arteries (CCA, carotid bulb and CFA) may be used as part of the cardiovascular risk stratification.     

糖代谢异常和糖尿病患者颈动脉粥样硬化的观察

目的:探讨糖尿病、糖代谢异常患者颈动脉粥样硬化的情况。方法:通过多普勒超声检查颈动脉粥样硬化的方法,观察了糖尿病、糖代谢异常患者颈动脉粥样硬化斑块的发生率及内中膜厚度,并与正常对照组进行比较。结果:糖尿病、糖代谢异常的患者与正常对照组相比其颈动脉粥样硬化斑块的发生率及内中膜厚度显著增加(P<0.01)。结论:糖尿病、糖代谢异常与颈动脉粥样硬化相互关联。     

Carotid intima-media thickness and brachial-ankle pulse wave velocity in patients with and without coronary artery disease

BACKGROUND: Carotid intima-media thickness and pulse wave velocity are non-invasive markers of atherosclerosis and have been shown to reliably predict presence and extent of atherosclerotic vascular disease. However, studies examining their association with each other have shown inconsistent results. Hence it was sought to assess correlation between carotid intima-media thickness and pulse wave velocity in patients with and without coronary artery disease. METHODS AND RESULTS: Sixty-four patients with angiographically proven coronary artery disease and 84 age-matched individuals without coronary artery disease but having one or more conventional cardiovascular risk factors were included in the study. Individuals with established cerebrovascular disease and peripheral vascular disease were excluded from the study. Carotid intima-media thickness of far wall was measured at three predefined sites (distal common carotid, carotid bifurcation and proximal internal carotid artery) on each side. Brachial-ankle pulse wave velocity was measured non-invasively using VP 1000 (Colin Corporation) automated ABI/ PWV analyzer. There was no significant difference in gender and presence of cardiovascular risk factors in the two groups. Mean and maximum carotid intima-media thickness and brachial-ankle pulse wave velocity were all significantly higher in coronary artery disease patients as compared to patients without coronary artery disease (0.842 v. ( 0.657 mm, p <0.0001; 1.076 v. 0.795 mm, p <0.0001; 1708.63 v. 1547.26 cm/s, p <0.0004 respectively). There was a significant correlation between brachial-ankle pulse wave velocity and both mean and maximum carotid intima-media thickness in patients with coronary artery disease (r = 0.47, p <0.0001 and r=0.41, p < 0.0008 respectively) but not in individuals without coronary artery disease (r=0.01 and -0.1 respectively). CONCLUSIONS: Presence of significant correlation between carotid intima-media thickness and brachial-ankle pulse wave velocity in patients with coronary artery disease but absence of the same in individuals without major atherosclerotic vascular disease suggests that the correlation between carotid intima-media thickness and brachial-ankle pulse wave velocity becomes stronger with increasing extent of atherosclerosis.     

Cardiac valvular calcification as a marker of atherosclerosis and arterial calcification in end-stage renal disease

BACKGROUND: Patients with end-stage renal disease (ESRD) are at increased risk for tissue calcifications as a result of deranged mineral metabolism. We tested the hypothesis that valvular calcification is a marker of atherosclerosis in patients with ESRD. METHODS: Echocardiography was performed in 92 patients undergoing peritoneal dialysis with no background atherosclerotic vascular complications to detect valvular calcification. We used B-mode ultrasonography to determine carotid artery intima-media thickness and the presence of plaque and calcification. RESULTS: Compared with patients without valvular calcification (n=66), those with valvular calcification (n=26) had higher C-reactive protein levels (P=.01) and greater mean +/- SE carotid intima-media thickness (1.12 +/- 0.06 vs 0.88 +/- 0.04 mm; P=.003). Carotid artery calcification was present unilaterally and bilaterally in 4 patients (15%) and 17 patients (65%) with valvular calcification vs 11 (17%) and 14 (21%) without, respectively (P<.001). Carotid artery plaque was present unilaterally and bilaterally in 11 patients (12%) and 16 patients (65%) with valvular calcification vs 3 (17%) and 17 (24%) without, respectively (P=.001). Using multiple logistic regression analysis, every 1-mm increase in carotid intima-media thickness was independently associated with a 6.51-fold (95% confidence interval, 1.58-26.73; P=.009) increased risk of valvular calcification, and calcification and plaque in the carotid arteries were associated with a 7.18-fold (95% confidence interval, 2.39-21.51; P<.001) and a 5.00-fold (95% confidence interval, 1.77-14.13; P=.002) increased risk of valvular calcification, respectively. CONCLUSION: The associations among valvular calcification, inflammation, carotid atherosclerosis, and arterial calcification suggest that valvular calcification is a marker of atherosclerosis and arterial calcification in patients with ESRD.     

通心络胶囊联合辛伐他汀对颈动脉粥样斑块形成的干预作用研究

目的 观察通心络胶囊联合辛伐他汀对颈动脉粥样斑块形成的干预作用.方法 选择116例门诊颈动脉粥样斑块患者并随机分为3组.通心络胶囊组(39例)在常规治疗的基础上加通心络胶囊2粒,每日3次1辛伐他汀组(39例)在常规治疗基础上加辛伐他汀40 mg,每晚1次;联合治疗组(38例)在常规治疗基础上,应用通心络胶囊2粒,每日3次,辛伐他汀40 mg,每晚1次.患者均连续服药6个月,并均于服药前和服药后第6个月接受颈动脉超声检查,现察比较各组患者用药前后颈动脉粥样斑块的变化.结果 3组患者用药后颈动脉粥样硬化斑块明显减轻甚或消退.用药前后通心络胶囊组与辛伐他汀组之间无统计学意义(P＞0.05),但用药后与通心络胶囊组和辛伐他汀组相比,联合治疗组患者颈动脉粥样硬化斑块减轻更明显(P＜0.05).各组均未见明显的不良反应.结论 通心络胶囊和辛伐他汀对颈动脉粥样硬化斑块有明显的抑制作用,两药联合效果更佳,且患者无明显的不良反应.     

超声技术综合评价颈动脉粥样硬化与冠心病病变程度的相关性研究

目的 应用超声技术综合评价颈动脉粥样硬化与冠状动脉粥样硬化性心脏病(冠心病)病变程度的相关性.方法 选取颈动脉斑块患者268例,根据其是否患有冠心病,分为冠心病组和非冠心病组,其中冠心病组患者147例,非冠心病组患者121例.超声测量颈动脉内中膜厚度(IMT)、利用血管斑块定量分析(VPQ)软件自动获取颈动脉斑块的相关...     

颈动脉多普勒超声与心绞痛患者冠状动脉病变的关系

目的采用彩色多普勒超声仪分析心绞痛患者颈动脉病变,探讨其在冠状动脉病变中的临床诊断价值。方法选择因心绞痛行冠状动脉造影的住院患者328例,根据冠状动脉造影结果分为4组:对照组(80例)、单支病变组(102例)、2支病变组(62例)和多支病变组(84例)。用彩色多普勒超声仪测量颈总动脉内膜中层厚度(intimamediathickness,IMT)及颈动脉分叉处IMT,记录颈动脉斑块的位置、数量。结果与对照组比较,2支病变组分叉处IMT和斑块积分明显增高,多支病变组颈总动脉IMT、分叉处IMT和斑块积分明显增高,差异有统计学意义(P0.05,P0.01)。与对照组比较,多支病变组颈总动脉IMT增厚比例明显增高,差异有统计学意义(P0.05);与单支病变组比较,多支病变组颈总动脉IMT增厚比例明显增高,差异有统计学意义(P0.05)。糖尿病是冠状动脉病变的主要危险因素(OR=2.8,95% CI:1.18～6.63)。结论颈动脉粥样硬化与冠状动脉病变有相关性,采用彩色多普勒超声分析颈动脉病变情况,对冠心病患者具有较好的筛查及预测价值。     

Association of carotid artery intima-media thickness with complex aortic atherosclerosis in patients with recent stroke

This study was undertaken to determine whether carotid intima-media thickness can predict complex aortic atherosclerosis. A retrospective review was conducted of 64 consecutive patients who underwent transesophageal echocardiography and carotid ultrasonography for evaluation of recent ischemic stroke at MCP Hahnemann University, Medical College of Pennsylvania Hospital between January 1, 1999, and December 31, 1999. The mean age was 65+/-14 years and 59% of the patients were women. Thirty-nine patients (61%) had carotid atherosclerosis (defined as an intima-media thickness > or =1 mm) and seven patients (11%) had complex aortic atherosclerosis (defined as the presence of protruding atheroma > or =4 mm thick, mobile atherosclerotic debris, or plaque ulceration in any aortic segment by transesophageal echocardiography). Compared to patients without complex aortic atherosclerosis, patients with complex aortic atherosclerosis were more likely to have hypercholesterolemia (19% vs 57%, p = 0.05) and a carotid intima-media thickness of 2 mm or greater (35% vs 86%, p = 0.02). A carotid intima-media thickness of 2 mm or more had 86% sensitivity, 65% specificity, 23% positive predictive value, 97% negative predictive value, 2.5 positive likelihood ratio, and 0.22 negative likelihood ratio for the diagnosis of complex aortic atherosclerosis. Carotid intimamedia thickness measurement can be used to noninvasively estimate the probability of complex aortic atherosclerosis. A carotid intima-media thickness less than 2 mm makes complex aortic atherosclerosis very unlikely.     

冠状动脉粥样硬化性心脏病患者颈总动脉中内膜厚度与冠状动脉病变的关系

目的 探讨冠状动脉粥样硬化性心脏病（冠心病）患者颈总动脉中内膜厚度与冠状动脉狭窄程度与狭窄范围的关系.方法 将211例怀疑冠心病的患者,根据冠状动脉造影结果,依有无狭窄及狭窄程度分为3组：A组（60例）为轻度狭窄组,狭窄程度＜50％;B组（97例）为中重度病变组,狭窄程度＞50％;对照组为54例冠状动脉造影阴性者.157例冠状动脉狭窄患者又依狭窄程度分为单支病变亚组（49例）、双支病变亚组（37例）、三支病变亚组（71例）.采用彩色多普勒声像仪测取颈总动脉中内膜厚度,并比较分析各组颈总动脉中内膜厚度.结果 对照组、A组、B组比较,颈动脉总中内膜厚度依次增高,对照组、A组、B组两两比较差异有统计学意义[（0.812 5±0.118 6）mm vs.（0.893 6±0.133 1）mm vs.（1.038 9±0.141 1）mm,P＜0.05].在以病变范围为基础的分组中,各亚组与对照组比较,颈动脉中内膜明显增厚,且两两比较差异有统计学意义（P＜0.05）;单支病变亚组与双支病变亚组比较,差异有统计学意义[（0.920 4±0.141 5）mm vs.（0.990 6±0.144 3）mm,P＜0.05],但双支病变组与三支病变组比较,差异无统计学意义[（0.990 6±0.144 3）mm vs.（1.031 7±0.149 6）mm,P＞0.05].结论 颈总动脉中内膜厚度能很好地反映冠状动脉狭窄程度,但无法很好地反映病变范围.     

锡伯族和汉族冠心病患者颈动脉粥样硬化及冠状动脉病变对比分析

目的 对比分析锡伯族、汉族冠心病患者颈动脉粥样硬化及冠状动脉病变情况.方法 对经冠状动脉造影明确的48例锡伯族、57例汉族冠心病患者和50例正常对照者均行颈动脉超声检查,比较各组间颈动脉内膜中膜厚度、斑块的发生率及冠状动脉病变的Gensini积分.结果 锡伯族、汉族冠心病患者内膜中膜厚度及颈动脉斑块的发生率均高于正常对照者(1.1±0.3 mm和1.0±0.1 mm比0.6±0.2 mm、88.3%和77.2%比38.0%,P<0.05),但锡伯族与汉族间比较没有统计学差异(P>0.05);锡伯族患者冠状动脉病变支数少于汉族(1.82±0.24比2.54±0.31, P<0.05),冠状动脉病变的Gensini积分也明显低于汉族(8.23±1.35比15.84±2.68,P<0.05),且冠状动脉病变支数越多,锡伯族、汉族冠心病患者颈动脉粥样硬化程度越重.结论 锡伯族和汉族冠心病患者颈动脉粥样硬化情况均重于正常对照者,但锡伯族和汉族间比较没有统计学意义;锡伯族和汉族冠心病患者冠状动脉病变存在差异,且锡伯族冠心病患者冠状动脉病变严重程度低于汉族;通过颈动脉内膜中膜厚度的程度可预测冠状动脉病变的存在及严重程度.