首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 15 毫秒
1.
目的:研究腹型肥胖对急性冠脉综合征(ACS)患者冠状动脉病变严重程度的影响。方法:选择2012年4月至2013年4月在我院接受治疗的ACS患者120例,根据腰围身高比(RWH)将患者分为无腹型肥胖者60例(对照组,RWH0.5)及腹型肥胖者60例(观察组,RWH0.5)。测量所有患者的基本参数,计算RWH,利用冠脉造影判断冠脉病变的支数和程度,根据Gensini评分法对冠脉造影结果进行评价,分析冠脉病变范围、Gensini积分和RWH的相关性。结果:观察组的收缩压(SBP)、空腹血糖(FPG)、总胆固醇(TC)、甘油三酯(TG)、低密度脂蛋白(LDL-C)及Gensini积分水平均显著高于对照组,差异均有统计学意义(均P0.05)。观察组的高密度脂蛋白(HDL-C)水平显著低于对照组,差异有统计学意义(P0.05)。双支病变的RWH及Gensini积分水平显著高于单支病变,三支病变的RWH及Gensini积分水平显著高于单支病变及双支病变,差异均有统计学意义(均P0.05)。根据Spearman法分析相关性可知,冠脉病变范围、Gensini积分和RWH均呈正相关(r=0.635,0.739;P=0.000,0.000)。结论:ACS患者RWH水平增高与冠脉病变的严重程度关系密切,有效控制腹型肥胖对于降低心血管类疾病发病率以及降低冠脉病变的程度具有重要意义。  相似文献   

2.
Preoperative coronary arteriograms were correlated, in a group of 50 patients, with left internal mammary angiograms obtained from 11 to 32 months, with a mean of 17 months, after mammary artery implantation. In all patients in whom the internal mammary artery was patent and considered functional with good angiographic opacification of the anterior descending coronary artery, the preoperative coronary angiogram showed total or subtotal obstruction of the latter vessel, with indirect evidence of decreased flow and pressure distal to the obstruction. This evidence was provided by the presence of a collateral circulation or, in a few cases of subtotal obstruction, delayed opacification of the vessel distal to the obstruction.In patients in whom the internal mammary artery was patent but showed no anastomotic connection with the anterior descending coronary artery or only opacification of small coronary branches, the degree of coronary obstruction was, in most cases, less than 90% of the lumen of the coronary artery in the absence of any collateral circulation or delayed opacification of the vessel distal to the obstruction.Occlusion of the internal mammary artery was seen as often in the presence of total or subtotal obstructions as with lesser degrees of anterior descending coronary artery obstruction, and is believed unrelated to the degree of pre-existing coronary artery disease.Successful internal mammary artery implantation can be related to specific coronary angiographic patterns recognizable before operation; these may serve as reliable criteria for the selection of patients.  相似文献   

3.
摘要 目的:探究冠状动脉CT血管造影(CTA)联合血清同型半胱氨酸(HCY)、胱抑素C(Cys-C)、载脂蛋白B/载脂蛋白A1(ApoB/ApoA1)比值对2型糖尿病(T2DM)患者合并冠状动脉病变的诊断价值。方法:回顾性选取2018年8月到2021年8月间我院收治的358例T2DM患者,均行常规生化指标、CTA检查、冠状动脉造影(CAG)检查,根据CAG检查结果为金标准将T2DM患者分为未合并冠脉病变组(190例)和合并冠脉病变组(168例),比较两组血清HCY、Cys-C、ApoB/ApoA1比值,分析CTA与CAG诊断冠脉狭窄结果的一致性,应用受试者工作特征(ROC)曲线评估冠状动脉CTA联合血清HCY、Cys-C、ApoB/ApoA1比值对T2DM合并冠状动脉病变的诊断价值。结果:与未合并冠脉病变组比较,合并冠脉病变组血清HCY、Cys-C、ApoB、ApoB/ApoA1比值水平明显更高(P<0.05),ApoA1明显更低(P<0.05)。以CAG为金标准,CTA诊断冠脉狭窄程度与CAG一致性较高(Kappa值0.748)。ROC曲线评估冠状动脉CTA诊断T2DM合并冠脉病变的AUC、灵敏度、特异度、准确度依次为0.802、74.40%、83.71%、79.11%。三项血清指标联合AUC、准确度显著优于单一指标(P<0.05)。冠状动脉CTA联合血清HCY、Cys-C、ApoB/ApoA1比值诊断T2DM合并冠脉病变的价值显著优于各项指标单一诊断或三项血清指标联合诊断(P<0.05)。结论:冠状动脉CTA联合血清HCY、Cys-C、ApoB/ApoA1比值诊断T2DM患者合并冠状动脉病变的价值较高,相较各项指标单一应用而言更具优势。  相似文献   

4.
Coronary angiography allows a direct evaluation of coronary anatomy. The aim of the present investigation was to search for correlations between the magnitude of coronary artery disease, as assessed by angiography, and a number of systemic parameters. A group of 116 patients (80 male, 36 female) with coronary heart disease diagnosed by angiography, aged 62.0±10.5 years, was the subject of an observational study. Correlation and linear regression analysis using coronary artery disease burden (CADB - sum of the percentage of the luminal stenosis encountered in all the lesions of the coronary arterial trees) as dependent variable, and age, sex, plasma calcium, phosphorus, magnesium, glucose, HDL cholesterol, LDL cholesterol, triglycerides, uric acid, estimated glomerular filtration rate and body mass index as independent variables, were carried out. Significant correlation values versus CADB were seen with age (r 0.19, p 0.04), uric acid (r 0.18, p 0.048) and fasting plasma glucose (r 0.33, p<0.001). Linear regression analysis, yielding a global significance level of 0.002, showed a significant value for glucose (p 0.018) and for sex (0.008). In conclusion, among several systemic parameters studied, plasma glucose was found to be correlated to coronary artery atherosclerosis lesions.  相似文献   

5.
目的:冠状动脉钙化在介入治疗中经常能碰到并且能影响治疗的效果。踝臂指数(ABI)是一种简单易行的无创检查,可作为判断下肢周围动脉疾病(PAD)的良好的无创指标,而且可以预测心血管事件。本课题主要探讨踝臂指数(ABI)对冠状动脉钙化病变的预测价值。方法:100例确诊为冠心病的患者,其中男性70例,女性30例,对所有患者测量ABI及常规生化检查,再行血管内超声虚拟组织学(IVUS-VH)测量冠脉钙化,将冠脉钙化分为三组,比较组间ABI差异,再分析ABI与冠状动脉钙化的相关性。结果:按照不同冠脉钙化分组ABI有显著性差异(P<0.05),ABI>1.3与冠状动脉钙化存在相关性。结论:ABI>1.3对冠状动脉钙化病变的严重程度有预测价值;ABI与冠状动脉钙化病变呈相关性,可作为对冠心病患者危险分层评估的一项指标。  相似文献   

6.
目的:观察经桡动脉介入诊治冠心病的安全性和有效性。方法:对1503例患者进行了经桡动脉途径介入诊治,其中包括心绞痛患者1218例,心梗患者268例,二尖瓣和/或动脉瓣手术前对冠状动脉进行解剖学评估17例,观察患者手术安全性、成功率以及与经桡动脉手术相关的并发症发病率。结果:介入治疗成功率为93.1%(1400/1503),手术失败的主要原因为桡动脉穿刺失败(39例),严重桡动脉痉挛(42例),右锁骨下动脉不同程度的弯曲(18例),近端严重狭窄(14例)。术后有14例患者出现严重并发症(瞬时缺血性病变),60例出现有症状的窦性心动过缓,43例出现静脉血栓,77例出现血肿,88例出现桡动脉梗阻。结论:经桡动脉途径是一种安全、有效、患者更容易接受的冠心病介入诊治方法。  相似文献   

7.
Longitudinal stent foreshortening is a known phenomenon, however, the impact of coronary artery curvature on longitudinal stent foreshortening remains unclear. The aim of this study is to determine the impact of coronary artery curvature on the longitudinal stent foreshortening in the real-world scenarios. A total of 86 consecutive patients underwent coronary stent implantation were included in the present study. The degree of coronary artery curvature was defined as the length of the coronary artery curvature divided by the straight length. Longitudinal stent foreshortening was defined as the stent length after implantation divided by the stent length before implantation. The mean longitudinal foreshortening rate of coronary stents was about 94% in curved coronary arteries. Longitudinal stent foreshortening rate was positively correlated with the degree of coronary artery curvature (r = –0.86, P < 0.01). Coronary artery curvature is associated with significant longitudinal foreshortening of coronary stents, thus longitudinal foreshortening should be considered on deciding the stent length in curved coronary artery and a longer stent is usually needed in curved coronary artery.  相似文献   

8.

Background

Little is known about whether atrial fibrillation is a presentation of coronary disease. There is a paucity of knowledge about their causal relationship and also the impact of different antithrombotic strategies on the subsequent presentation of symptomatic coronary disease.

Methods and Results

We studied 7,526 Chinese patients diagnosed with non-valvular atrial fibrillation and no documented history of coronary artery disease. The primary endpoint was the new occurrence of coronary artery disease—either stable coronary artery disease or acute coronary syndrome. After a mean follow-up of 3.2±3.5 years (24,071 patient-years), a primary endpoint occurred in 987 patients (13.1%). The overall annual incidence of coronary artery disease was 4.10%/year. No significant differences in age, sex, and mean CHA2DS2-VASc score were observed between patients with and without the primary endpoint. When stratified according to the antithrombotic strategies applied for stroke prevention, the annual incidence of coronary artery disease was 5.49%/year, 4.45%/year and 2.16%/year respectively in those prescribed no antithrombotic therapy, aspirin, and warfarin. Similar trends were observed in patients with acute coronary syndromes. Diabetes mellitus, smoking history and renal failure requiring dialysis were predictors for primary endpoint in all antithrombotic therapies.

Conclusion

In patients with non-valvular atrial fibrillation, there is a modest association with coronary artery disease. Patients prescribed warfarin had the lowest risk of new onset coronary artery disease.  相似文献   

9.
目的:总结15例冠状动脉支架植入术后行冠状动脉旁路移植术的临床经验。方法:回顾分析行冠状动脉支架植入术后行冠状动脉旁路移植术15例患者的资料,男10例,女5例,平均年龄(61±5)岁。行冠状动脉支架植入术后再行冠状动脉旁路移植术时间间隔(24±4)月,冠状动脉内置入支架3-6枚,左室射血分数为43%-64%,其中50%为3例。全组行体外循环下冠状动脉旁路移植术3例,行非体外循环心脏跳动下冠状动脉旁路移植术12例。结果:全组共行动脉桥吻合13支,静脉桥33支;围术期并发低心排综合征3例,肺部感染4例,胸腔内出血行胸腔闭式引流术2例,本组患者无死亡病例。术后平均住院日(13±4)天。结论:对冠状动脉内支架植入术后再狭窄或(和)冠状动脉再血管化不足的病例进行冠状动脉旁路移植治疗,可使冠状动脉达到充分再血管化,提高冠心病患者生活质量及预后。  相似文献   

10.
目的:探讨颈动脉粥样硬化与血管内皮功能与冠心病患者的相关性。方法:选取114例冠心病患者(54例单支病变和60例多支病变)为观察组和60例健康体检者为对照组,对两组患者动脉粥样硬化及血管内皮功能进行分析。结果:观察组患者TC、TG、HDL及血糖水平均高于对照组,观察组LDL水平显著低于对照组,两组比较差异有统计学意义(P<0.05);观察组患者颈动脉IMT、斑块积分及斑块数明显高于对照组(P<0.05),观察组FMD显著降低(P<0.05),多支病变组病变程度更严重(P<0.05)。结论:颈动脉粥样硬化与血管内皮功能可作为预测冠心病的重要指标,对预防和治疗冠心病具有重要意义。  相似文献   

11.
目的:探讨血清同型半胱氨酸(Hcy)、高敏C反应蛋白(hs-CRP)及肱踝脉搏波传导速度(baPWV)与冠心病患者冠脉病变程度的相关性。方法:选取2015年6月-2017年10月期间承德医学院附属医院收治的疑似冠心病的患者324例为研究对象,根据冠状动脉造影结果分为冠心病组213例与非冠心病组111例,根据不同冠脉病变程度将冠心病组分为单支病变组87例,双支病变组74例,多支病变组52例,检测并对比所有患者血清Hcy、hs-CRP水平及baPWV值,分析Hcy、hs-CRP水平及baPWV值与冠心病患者冠脉病变程度相关性。结果:冠心病组患者血清Hcy、hs-CRP水平及baPWV值较非冠心病组升高(P0.05)。冠心病组不同冠脉病变程度患者血清Hcy、hs-CRP水平及baPWV值整体比较差异有统计学意义(P0.05),多支病变组与双支病变组患者血清Hcy、hs-CRP水平及baPWV值高于单支病变组,且多支病变组高于双支病变组,差异有统计学意义(P0.05)。经Pearson相关性分析显示,Hcy、hs-CRP及baPWV均与冠心病患者冠脉病变程度呈正相关(P0.05)。结论:冠心病患者血清Hcy、hs-CRP水平及baPWV值高于非冠心病者,且血清Hcy、hs-CRP水平及baPWV值随着冠心病患者冠脉病变程度的加重而升高,与冠脉病变程度呈正相关。  相似文献   

12.
目的观察开胸结扎冠状动脉与闭胸明胶海绵栓塞法制备急性心肌梗死(AMI)动物模型的特点。方法分别经开胸结扎犬冠状动脉左前降支主干及闭胸冠脉栓塞的方法阻断冠脉血流;采用单级肢体导联和胸导联方式,在阻断前后监测心电图波形变化;造模72h后取心肌组织行病理切片染色。结果经心电图和病理验证,两种方法均可成功制备犬心梗模型,开胸冠脉结扎犬死亡率较高,而冠脉栓塞成活率高。结论相较开胸冠脉结扎法,闭胸栓塞法制备心梗模型对动物损伤小,成活率高,具推广价值。  相似文献   

13.
目的:研究血清肌酐(serum creatinine,SCr)与非ST段抬高急性冠脉综合征(non-ST-elevation acute coronary syndrome,NSTE-ACS)患者冠脉病变程度及其预后的关系。方法:对293例患者进行回顾性分析,依据冠脉造影结果分为NSTE-ACS组和非冠心病组。根据Gensini积分系统,评价NSTE-ACS患者冠脉病变程度,并将患者分为轻度病变组、中度病变组和重度病变组。检测患者SCr水平,应用SPSS16.0分析SCr与NSTE-ACS患者冠脉病变程度及其预后关系。结果:(1)与非冠心病组相比,NSTE-ACS患者SCr较高(P0.05);其中,重度冠脉病变NSTE-ACS患者SCr水平尤高(P0.001)。(2)SCr是NSTE-ACS冠脉病变的危险因子;SCr与NSTE-ACS冠脉病变程度呈正相关(r=0.263,P0.000);SCr与NSTE-ACS主要心血管不良事件(Major Adverse Cardiovascular Events,MACE)呈正相关(r=0.183,P0.01)。结论:SCr是NSTE-ACS患者冠脉病变的独立危险因子,且与NSTE-ACS患者预后相关。SCr对于NSTE-ACS的诊疗有潜在临床价值。  相似文献   

14.

Objectives

Patients with coronary ectasia (CE) usually have coexisting coronary stenosis resulting in myoischemia. Coronary collateral plays an important role in protecting myocardium from ischemia and reducing cardiovascular events. However, limited studies investigate the role of CE in coronary collaterals development.

Methods

We evaluated 1020 consecutive patients undergoing coronary angiography and 552 patients with significant coronary artery disease (SCAD), defined as diameter stenosis more than 70%, were finally analyzed. CE is defined as the ectatic diameter 1.5 times larger than adjacent reference segment. Rentrop collateral score was used to classify patients into poor (grades 0 and 1) or good (grades 2 and 3) collateral group.

Results

73 patients (13.2%) had CE lesions which were most located in the right coronary artery (53.4%). Patients with CE had a lower incidence of diabetes (43.8% vs 30.1%, p = 0.03), higher body mass index (25.4±3.5 vs 26.7±4.6, p = 0.027) and poorer coronary collateral (58.2% vs 71.2%, p = 0.040). Patients with poor collateral (n = 331) had a higher incidence of CE (15.7% vs 9.5%, p = 0.040) and fewer diseased vessels numbers (1.96±0.84 vs 2.48±0.69, p<0.001). Multivariate analysis showed diabetes (odd ratio (OR) 0.630, p = 0.026), CE (OR = 0.544, p = 0.048), and number of diseased vessels (OR = 2.488, p<0.001) were significant predictors of coronary collaterals development.

Conclusion

The presence of CE was associated with poorer coronary collateral development in patients with SCAD.  相似文献   

15.
目的:总结15例冠状动脉支架植入术后行冠状动脉旁路移植术的临床经验。方法:回顾分析行冠状动脉支架植入术后行冠状动脉旁路移植术15例患者的资料,男10例,女5例,平均年龄(61±5)岁。行冠状动脉支架植入术后再行冠状动脉旁路移植术时间间隔(24±4)月,冠状动脉内置入支架3-6枚,左室射血分数为43%-64%,其中〈50%为3例。全组行体外循环下冠状动脉旁路移植术3例,行非体外循环心脏跳动下冠状动脉旁路移植术12例。结果:全组共行动脉桥吻合13支,静脉桥33支;围术期并发低心排综合征3例,肺部感染4例,胸腔内出血行胸腔闭式引流术2例,本组患者无死亡病例。术后平均住院日(13±4)天。结论:对冠状动脉内支架植入术后再狭窄或(和)冠状动脉再血管化不足的病例进行冠状动脉旁路移植治疗,可使冠状动脉达到充分再血管化,提高冠心病患者生活质量及预后。  相似文献   

16.
目的:研究不同糖代谢冠心病患者的糖化血红蛋白(HbA1c)水平与和冠状动脉病变的关系。方法:选取2013 年5 月到2014 年5 月我院收治的冠心病患者100 例,分为糖代谢正常组、异常组和糖尿病组。分析三组患者的HbA1c 水平、冠状动脉狭窄程度 及冠状动脉病变指数之间的关系和冠状动脉病变的危险因素。结果:三组患者的冠状动脉狭窄程度、冠状动脉病变支数、空腹血 糖(FPG)、餐后2 小时血糖(2hPG)、HbA1c 和三酰甘油(TG)水平比较,差异具有统计学意义(P<0.05);HbA1c 水平与冠状动脉狭 窄程度呈正相关(P<0.05);Logistic 结果显示年龄、性别、高血压、HbA1c、FPG、总胆固醇(TG)和高密度脂蛋白胆固醇(HDL-C)是 冠状动脉病变的危险因素(P<0.05)。结论:HbA1c 水平和冠状动脉病变具有相关性,是影响冠状动脉病变的重要危险因素。  相似文献   

17.
目的:探讨冠心病患者血清白介素18(Interleukin-18,IL-18)、白细胞分化抗原40配体(CD40L)、及高敏C反应蛋白(hs-CRP)水平在经皮冠状动脉介入术治疗前后的变化和意义。方法:选择经冠状动脉造影确诊的冠心病患者85例,根据病变程度分为单支病变组(n=32)、双支病变组(n=28)和多支病变组(n=25),采用双抗体夹心ELISA法测定PCI术前术后血清IL-18、CD40L和hs-CRP水平。结果:血清IL-18水平测定结果:多支病变组高于双支病变组,双支病变组高于单支病变组;支架置入术后显著高于术前,差异均有统计学意义(P<0.01)。血清CD40L水平测定结果:多支病变组高于双支病变组和单支病变组,差异均有统计学意义(P<0.01),双支病变组与单支病变组间差异无统计学意义(P>0.05);支架置入术后较术前显著升高,差异有统计学意义(P<0.01)。血清hs-CRP水平测定结果:多支病变组高于双支病变组,双支病变组高于单支病变组;支架置入术后显著高于术前,差异均有统计学意义(P<0.01)。结论:冠心病患者血清IL-18、CD40L和hs-CRP与冠脉病变程度密切相关,介入治疗可使冠心病患者血清IL-18、CD40L和hs-CRP水平升高,监测血清中IL-18、CD40L和hs-CRP水平变化可了解治疗效果和炎症程度。  相似文献   

18.
目的:探讨冠心病患者血清白介素18(Interleukin-18,IL-18)、白细胞分化抗原40配体(CD40L)、及高敏C反应蛋白(hs-CRP)水平在经皮冠状动脉介入术治疗前后的变化和意义。方法:选择经冠状动脉造影确诊的冠心病患者85例,根据病变程度分为单支病变组(n=32)、双支病变组(n=28)和多支病变组(n=25),采用双抗体夹心ELISA法测定PCI术前术后血清IL-18、CD40L和hs-CRP水平。结果:血清IL-18水平测定结果:多支病变组高于双支病变组,双支病变组高于单支病变组;支架置入术后显著高于术前,差异均有统计学意义(P〈0.01)。血清CD40L水平测定结果:多支病变组高于双支病变组和单支病变组,差异均有统计学意义(P〈0.01),双支病变组与单支病变组间差异无统计学意义(P〉0.05);支架置入术后较术前显著升高,差异有统计学意义(P〈0.01)。血清hs-CRP水平测定结果:多支病变组高于双支病变组,双支病变组高于单支病变组;支架置入术后显著高于术前,差异均有统计学意义(P〈0.01)。结论:冠心病患者血清IL-18、CD40L和hs-CRP与冠脉病变程度密切相关,介入治疗可使冠心病患者血清IL-18、CD40L和hs-CRP水平升高,监测血清中IL-18、CD40L和hs-CRP水平变化可了解治疗效果和炎症程度。  相似文献   

19.
Transthoracic Doppler echocardiography (TTDE) is a clinically useful, noninvasive tool for studying coronary artery flow velocity and coronary flow reserve (CFR) in humans. Reduced CFR is accompanied by marked intramyocardial and pericoronary fibrosis and is used as an indication of the severity of dysfunction. This study explores, step-by-step, the real-time changes measured in the coronary flow velocity, CFR and systolic to diastolic peak velocity (S/D) ratio in the setting of an aortic banding model in mice. By using a Doppler transthoracic imaging technique that yields reproducible and reliable data, the method assesses changes in flow in the septal coronary artery (SCA), for a period of over two weeks in mice, that previously either underwent aortic banding or thoracotomy. During imaging, hyperemia in all mice was induced by isoflurane, an anesthetic that increased coronary flow velocity when compared with resting flow. All images were acquired by a single imager. Two ratios, (1) CFR, the ratio between hyperemic and baseline flow velocities, and (2) systolic (S) to diastolic (D) flow were determined, using a proprietary software and by two independent observers. Importantly, the observed changes in coronary flow preceded LV dysfunction as evidenced by normal LV mass and fractional shortening (FS). The method was benchmarked against the current gold standard of coronary assessment, histopathology. The latter technique showed clear pathologic changes in the coronary artery in the form of peri-coronary fibrosis that correlated to the flow changes as assessed by echocardiography. The study underscores the value of using a non-invasive technique to monitor coronary circulation in mouse hearts. The method minimizes redundant use of research animals and demonstrates that advanced ultrasound-based indices, such as CFR and S/D ratios, can serve as viable diagnostic tools in a variety of investigational protocols including drug studies and the study of genetically modified strains.  相似文献   

20.
目的:研究臂踝脉搏波传导速度(baPWV)在冠心病患者中的诊断价值,并观察臂踝脉搏波传导速度改变(baPWV%)对冠状动脉狭窄程度评估的作用,为临床诊疗提供依据。方法:选取2013年7月-2015年9月我院预行冠状动脉造影患者463例,根据冠状动脉造影情况将入选者分为冠心病组(n=262)和非冠心病组(n=201),冠心病组根据SYNTAX评分将患者分为轻、中、重度组,所有入选者均行baPWV和baPWV%检查,并分析其与SYNTAX评分的相关性。结果:冠心病组baPWV和baPWV%均显著高于非冠心病组,比较差异具有统计学意义(P0.05);重度组baPWV和baPWV%显著高于中度组和轻度组,中度组baPWV和baPWV%显著高于轻度组,比较差异具有统计学意义(P0.05);相关性分析显示:baPWV%与SYNTAX评分呈正相关关系(P0.05)。结论:baPWV和baPWV%对冠心病具有一定诊断价值,且baPWV%与SYNTAX评分呈正相关关系。  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号