Study on Features of Insulin Resistance in Patients with Coronary Heart Disease

Objective Researching the features of insulin resistance in patients with coronary heart disease (CHD) . Methods The study included 20 healthy subjects (control group), 53 CHD patients without (Group A) and 24 with essential hypertension (Group B) . Oral glucose tolerance test was administered to all subjects. Venous blood samples were taken during fasting and at 30, 60, 120 and 180 min after the glucose load (100g). All samples were assayed for glucose, insulin and C - peptide. Results The glucose, insulin, and C - peptide curves were at a hierarchy of Group B > Group A > the control group. Insulin - sensitivity - index was at an inverse hierarchy (-4. 31±0.55, -4. 05±0.47, - 3. 82±0. 42, respectively) . The ratio of the area under the C - peptide to the insulin was at a hierarchy of control group (3. 84±0. 81)> Group A (2. 84±0. 93)> Group B (2.26±0. 67), P < 0. 01) . As to insulin and C - peptide releasing types, most subjects of the control group had common type, while the predominant response type was pure - high in Group A, delayed - and delayed - high in Group B. Conclusions There are insulin resistance, insulin - C - peptide separation and changes of insulin and C - peptide releasing types in CHD patients. Insulin resistance is more severe when with hypertension. The hyperinsulinemia in CHD might be due to the over - secretion of insulin, also due to slow clearance in the patients accompanied by hypertension.

Effects of Aerobic Exercise Combined with Resistance Training on Patients with Myocardial Ischemia Caused by Coronary Heart Disease

Objective:To explore the clinical effect of long-term aerobic exercise combined with resistance training in patients with myocardial ischemia caused by coronary heart disease and its influence on cardiac function, exercise endurance and quality of life. Methods:100 patients with myocardial ischemia caused by coronary heart disease from January 2017 to January 2019 were randomly divided into control group (n = 50 cases) and observation group (n = 50 cases). The control group was given resistance training, while the observation group was combined with long-term aerobic exercise on the basis of the control group. The two groups were treated for 3 months. The cardiac function, exercise endurance and quality of life were compared between the two groups. Results:The levels of IVST (8.20+1.32) mm, LVDD (46.43+4.13) mm and LVSD (32.59+3.15) mm in the observation group were lower than those in the control group at 3 months after treatment. The level of LVEF (67.49+5.77)% in the observation group was higher than that in the control group at 3 months after treatment. The difference between the two groups was significant (P<0.05). The ET (55.42+2.9) in the observation group was higher than that in the control group (P<0.05). 2) The levels of ng/L and TXB2 (93.23 + 6.26) ng/L were significantly lower than those of the control group, and the difference between the two groups was statistically significant (P<0.05). The 6-minute walking distance (561.25 +43.64) m and the quality of life score (95.31 +6.39) in the observation group were higher than those in the control group 3 months after treatment, and the difference between the two groups was statistically significant (P<0.05). Conclusions:Long-term aerobic exercise combined with resistance training can improve cardiac function, exercise tolerance and quality of life in patients with myocardial ischemia caused by coronary heart disease, which is worthy of popularization and application.

The Study on the Correlation Between Plasma Adiponectin Level and Coronary Heart Disease

Objectives To investigate the relationship between plasma adiponectin level and coronary heart disease （CHD）, and some established cardiovascular risk factors and to probe its probable pathogenesis which adiponectin results in CHD. Methods The levels of plasma adiponectin, fasting plasma insulin （FINS）, C-reactive protein （CRP） and P-selectin were measured by ELISA, plasma ET-1 was measured by radioimmunoassay （RIA） in 75 male patients with CHD and 30 healthy male people. Body mass index （BMI）, waist / hip ratio （WHR） and insulin resistance index （Homa-IR） were calculated respectively. Results （1）The plasma adiponectin levels in CHD group were lower compared with control group[（5.18±2.57）mg / L vs（8.94±2.59）mg / L, P〈 0.001 ], there was no significant difference of plasma adiponectin levels in CHD sub-groups （P 〉 0.05）.（2） Based on multinominal stepwise logistic regression analysis, adiponectin was one of significant and independent risk factors for CHD. （3） Multivariate liner stepwise regression analysis showed that adiponectin had significant correlation with BMI and TG, BMI and TG were independent factors influencing on plasma adiponectin levels. （4） Pearson correlation analysis indicated plasma adiponectin levels were inversely related to FINS levels , Homa-IR, CRP, P-selectin and ET-1. Conclusions （ 1 ）Plasma adiponectin levels are lower in CHD patients compared the control subjects, there are no significant difference of plasma adiponectin levels in patients with SAP, UAP and AMI. （2） Plasma adiponectin levels are relative with CHD. Hypoadiponectinemia is an independent risk factor for CHD. （3）Established cardiovascular risk factors such as BMI and TG have an obvious influence on adiponectin. （4）The probable pathogenesis by which adiponectin involves in CHD is suggested that adiponectin relates to insulin resistance, inflammatory reaction and dysfunction of vessel endothelium.

ASSOCIATION OF INSULIN RESISTANCE AND C-REACTIVE PROTEIN WITH CORONARY ARTERY DISEASE IN PATIENTS WITH NORMAL GLUCOSE TOLERANCE

Objective To examine insulin resistance and high sensitivity C-reactive protein (hsCRP) association with clinical and angiographic severity of coronary artery disease (CAD) in patients with normal glucose tolerance. Methods In 638 consecutive patients with normal glucose tolerance, 221 had atypical chest pain and normal coronary artery (control group), 279 had stable angina and CAD (SAP group), and 138 suffered acute myocardial infarction (MI group). The degree of CAD was further divided into borderline lesion (lumen diameter narrowing 50%-69%), significant 1-, 2- or 3-vessel disease (luminal diameter narrowing ≥70%). Fasting serum glucose, insulin and hsCRP levels and lipid profiles were measured, and homeostasis model assessment for insulin resistance (HOMA-IR) was calculated. Multivariate analysis was performed to assess risk factors for 3-vessel disease or acute MI. Results Serum hsCRP, lipoprotein (a) levels, and insulin resistance index (IRI) were higher in AMI group than those in SAP and control groups. Serum hsCRP level and IRI were also higher in 3-vessel disease than those in other groups. Multivariate regression analysis revealed that insulin resistance, cigarette smoking, serum hsCRP, and lipoprotein (a) levels were independent risk factors for acute MI. Lipoprotein (a) elevation was an independent risk factor for 3-vessel disease. Conclusion Insulin resistance and high serum hsCRP level were associated with occurrence of acute MI and angiographic severity of coronary disease in patients with normal glucose tolerance.

Nonalcoholic fatty liver disease is associated with coronary artery disease in Koreans

AIM:To investigate whether nonalcoholic fatty liver disease(NAFLD)affects coronary artery disease(CAD)and identify candidate mediators.METHODS:Patients who underwent coronary angiography were consecutively recruited.The patients were classified into four groups by coronary artery stenosis:A,insignificant;B,one-vessel disease;C,two-vessel disease;and D,three-vessel disease.Abdominal ultrasonography was performed to determine the presence of a fatty liver and categorize by grade:0,no evidence;1,mild;2,moderate;and 3,severe.We measured not only known CAD risk factors,but also serum insulin,HOMA-index,adiponectin,interleukin-6,tumor necrosis factor-αand high-sensitivity C-reactive protein levels.RESULTS:Of the 134 patients who met the inclusion criteria,82(61.2%)had ultrasonographically diagnosed NAFLD.Among the 46 patients with CAD,37(80.4%)had evidence of a fatty liver.The two groups(A vs B-D)were significantly different in terms of age,total cholesterol,triglycerides,low-density lipoprotein levels and fatty liver.Coronary artery stenosis was strongly associated with fatty liver in a grade-dependent manner(P=0.025).In binary logistic regression,NAFLD was a significant independent predictor of CAD(P=0.03,OR=1.685;95%CI:1.051-2.702).Among the candidate mediators,the serum adiponectin level showed a trend toward lowering based on CAD progression(P=0.071).CONCLUSION:NAFLD is an independent risk factor for CAD in a grade-dependent manner.Moreover,adiponectin might be related to the pathogenesis of NAFLD.

利拉鲁肽治疗冠心病合并2型糖尿病患者的临床研究

目的 分析利拉鲁肽治疗冠心病合并2型糖尿病患者的临床效果。方法 102例冠心病合并2型糖尿病患者,应用电脑随机选择方式将患者分为对照组和观察组,每组51例。对照组给予二甲双胍治疗,观察组给予二甲双胍结合利拉鲁肽治疗。对比两组心功能指标(左室射血分数、左室舒张末内径、心排血量以及QT离散度)、血糖指标[空腹血糖(FPG)、餐后2 h血糖(2 h PG)、糖化血红蛋白(HbA1c)]、胰岛素抵抗情况[胰岛β细胞功能指数(HOMA-β)、胰岛素抵抗指数(HOMA-IR)]。结果 治疗后,观察组左室射血分数(56.10±9.06)%、左室舒张末内径(45.80±6.64)mm、心排血量(5.60±1.18)L/min、QT离散度(45.03±6.31)ms优于对照组的(50.50±7.90)%、(50.20±7.07)mm、(4.88±1.01)L/min、(53.77±8.50)ms(P<0.05)。治疗后,观察组2 h PG(7.28±1.30)mmol/L、FPG(6.06±0.27)mmol/L、HbA1c(5.88±0.32)%优于对照组的(8.71±1.20)mmol/L、(7.01±0.76)mmol/L、(6.65±0.52)%(P<0.05)。治疗后,观察组HOMA-β、HOMA-IR优于对照组(P<0.05)。结论 结合冠心病合并2型糖尿病患者实际情况应用二甲双胍结合利拉鲁肽治疗,能够有效改善患者的心功能指标、血糖指标及胰岛素抵抗情况,具有优良的应用前景,在今后的工作过程中能够进一步应用。

CTCA定量参数对冠心病患者短期病死预测价值

目的探讨CT冠状动脉造影(CTCA)定量参数对冠心病患者短期病死预测价值。方法选取2021年3月—2023年3月收治的冠心病200例,比较不同冠状动脉病变程度冠心病患者CTCA定量参数(动脉阻力指数、总斑块负荷和斑块最小密度CT值),分析CTCA定量参数与冠心病患者冠状动脉病变程度相关性,探讨术后1年冠心病患者病死情况,分析CTCA定量参数与冠心病患者短期病死风险关联性,评价CTCA定量参数对冠心病患者短期病死预测价值。结果不同冠状动脉病变程度冠心病患者动脉阻力指数、总斑块负荷逐渐升高,斑块最小密度CT值逐渐降低(P<0.05)。冠心病患者动脉阻力指数、总斑块负荷与疾病类型、病变支数及狭窄程度呈正相关,斑块最小密度CT值与疾病类型、病变支数及狭窄程度呈负相关(P<0.05)。冠心病200例中39例(19.50%)术后1年病死。动脉阻力指数、总斑块负荷和斑块最小密度CT值与冠心病患者短期病死有关(P<0.01)。对冠心病患者短期病死预测的受试者工作特征曲线下面积动脉阻力指数、总斑块负荷和斑块最小密度CT值三者联合明显高于单独预测(P<0.05)。结论CTCA定量参数与冠心病患者冠状动脉病变程度密切相关,且联合各参数预测冠心病患者短期病死价值较高。

泰安地区冠心病患者CYP2C19、ABCB1、PON1基因型分布与氯吡格雷抵抗风险的相关性

[目的]研究泰安地区冠心病患者CYP2C19、ABCB1、PON1基因型分布特点及与氯吡格雷抵抗风险的相关性。[方法]选取2019年1月—2020年3月在泰安市中心医院住院且服用氯吡格雷治疗的冠心病患者594例,运用荧光染色原位杂交技术检测CYP2C19*2(rs4244285)、CYP2C19*3(rs4986893)、CYP2C19*17(rs12248560)、ABCB1(rs1045642)、PON1(rs662)基因型。[结果]泰安地区冠心病患者CYP2C19*2、CYP2C19*3、CYP2C19*17基因型主要是野生纯合型(GG),其中CYP2C19*2 GG基因型频率为48.0%,CYP2C19*3 GG基因型频率为89.6%,CYP2C19*17 CC基因型频率为97.0%;ABCB1基因型主要是突变杂合型(CT),基因型频率为46.8%;PON1基因型主要是突变杂合型(AG),基因型频率为47.1%。CYP2C19*2、CYP2C19*3、CYP2C19*17、ABCB1、PON1基因型分布、等位基因分布在男性患者与女性患者中的分布差异无统计学意义(P>0.05)。泰安地区冠心病患者CYP2C19等位基因频率及代谢型分布存在显著的地区差异。在纳入研究的594名患者中,综合评价患者氯吡格雷抵抗风险度≥2的患者有287例,约占患者总数的48.3%,表明48.3%的患者常规剂量服用氯吡格雷后存在氯吡格雷抵抗。其中在风险度≥2的287例患者中,有46例CYP2C19代谢类型为正常代谢型,约占患者总数的7.7%。[结论]泰安地区冠心病患者CYP2C19*2、CYP2C19*3、CYP2C19*17、ABCB1、PON1基因型存在多态性,ABCB1、PON1基因多态性会对约7.7%的患者用药指导结果有影响。

NIDDM患者微量白蛋白尿与冠心病的关系

１０９例年龄≤６０岁的ＮＩＤＤＭ患者，其中４０例并有微量白蛋白尿或早期蛋白尿，６９例正常白蛋白尿，分析比较两组心血管疾病危险因素与心脏受损情况，结果发现微量白蛋白尿组与正常白蛋白尿组相比，缺血性心电图异常发生率较高（２５％比１５．９％），超声心动图左室舒张末期内径较大（４．８６±０．５４ｃｍ比４．６９±０．５５ｃｍ，Ｐ＜０．０５），表明微量白蛋白尿组有心脏受损较多的倾向，提示微量白蛋白尿是ＮＩＤＤＭ患者发生缺血性心脏病的危险信号。

冠心病、NIDDM、高血压和尿毒症患者血脂质变化特点及意义

目的 观察冠心病、非胰岛素依赖性糖尿病 (NIDDM)、高血压和尿毒症患者的血脂质变化特点及其意义。方法 总胆固醇 (TC)测定采用CHOD PAP法 ,总甘油三酯 (TG)测定采用GPO POD法 ,高密度脂蛋白 (HDL)及高密度脂蛋白 2 (HDL2 )测定采用聚二乙醇 2 0 0 0法。结果 4种疾病患者血清的HDL2 都有十分明显的降低 ;冠心病、NIDDM、尿毒症患者HDL均降低明显 ;冠心病、NIDDM患者的TG明显升高 ;冠心病患者的TC显著升高、尿毒症患者的TC显著降低。结论 4种疾病患者存在不同程度脂质代谢紊乱 ,TC、TG、HDL、HDL2 在

NIDDM 患者并发冠心病的危险因素分析

目的初步探讨非胰岛素依赖性糖尿病（ＮＩＤＤＭ）患者并发冠心病的危险因素。方法将６５例ＮＩＤＤＭ患者分为无慢性并发症组和并发冠心病组，每组病人根据糖化血红蛋白水平又分为血糖控制较好组和血糖控制较差组，并设立正常对照组。分析各组病人ＨｂＡ１ｃ、血脂及血胰岛素水平及其与合并冠心病的关系。结果各糖尿病组患者普遍存在着脂代谢紊乱和高胰岛素血症，且以并发冠心病组最为明显。脂代谢紊乱主要表现为血甘油三酯、总胆固醇、低密度脂蛋白胆固醇和载脂蛋白Ｂ１００的升高，高密度脂蛋白胆固醇和载脂蛋白Ａ１的降低。血糖的控制有助于上述有关指标的改善。结论ＮＩＤＤＭ患者普遍存在着脂代谢紊乱和高胰岛素血症，此为ＮＩＤＤＭ患者并发冠心病的危险因素。

甘油三酯-葡萄糖指数对行介入治疗的缺血性心力衰竭合并2型糖尿病患者的预后价值

目的:在以往的研究中,甘油三酯-葡萄糖(triglyceride-glucose,TyG)指数已被证明与心血管疾病的预后密切相关。然而,TyG指数对接受PCI治疗的缺血性心力衰竭(heart failure,HF)合并2型糖尿病(type 2 diabetes mellitus,T2DM)患者预后的影响仍不明确。方法:回顾性纳入792例缺血性HF合并T2DM患者,并根据TyG指数的四分位数将其分为四组。主要终点是主要不良心血管事件(major adverse cardiovascular events,MACE),包括全因死亡、非致死性心肌梗死(myocardial infarction,MI)和任意血运重建。通过Kaplan-Meier生存分析评估四组间终点的发生率。使用多因素Cox回归模型分析TyG指数与终点的独立相关性。此外,进行了限制性立方样条(restricted cubic spline,RCS)分析,以检验TyG指数与MACE之间的非线性关系。结果:随着基线TyG水平增加,MACE的发生率显著增加(P<0.001)。Kaplan-Meier曲线同样表明:随着基线TyG水平增加,MACE的发生率显著增加(Log-rank P <0.001)。多因素Cox回归分析模型表明,随着基线TyG水平的增加,患者MACE(组1作为参考;组2 HR=1.24,95%CI:0.84~1.83,P=0.279;组3 HR=2.13,95%CI:0.1.47~3.08,P <0.001;组4 HR=2.55,95%CI:1.76~3.68,P <0.001)的发生风险显著增加。RCS曲线表明,TyG指数与MACE结局之间呈线性关系,MACE发生风险随着TyG水平的升高而升高(非线性P>0.05)。结论:在缺血性HF合并T2DM行PCI术的患者中,随着TyG水平升高,MACE发生率显著升高,二者呈线性关系。TyG指数同时也是该人群MACE的独立预测因素。本研究结果仍需在前瞻性研究中得到进一步证实。

NIDDM患者冠心病与胰岛素抵抗之间关系的探讨

目的:探讨NIDDM病人冠心病与胰岛素抵抗之间的关系。方法:通过比较男性NIDDM合并CHD者与未合并CHD者的血糖、血胰岛素水平、胰岛素敏感指数(ISI)、血脂、细胞内Ca^(2+)和Mg^(2+)浓度,并对上述诸因素与CHD的关系进行多因素Logistic逐步回归分析。结果:NIDDM合并CHD者的体重指数(BMI)、甘油三酯(TG)、低密度脂蛋白(LDL)、空腹胰岛素浓度、ISI、Ca^(2+)、Mg^(2+)较未合并CHD组有统计学差异,ISI差异最为显著(P<0.001),同时发现,ISI与CHD发病呈显著负相关(OR=0.019,P=0.002)。结论:胰岛素抵抗(IR)可能是NIDDM合并CHD病人TG、LDL、Ca^(2+)浓度升高和HDL、细胞内Mg^(2+)浓度下降的重要原因之一。CHD是否继发于IR,以及是否可通过有效手段改善IR来降低CHD的发生,有待进一步探讨。

冠状动脉慢性完全闭塞病变侧支循环的建立与胰岛素抵抗的相关性

目的探讨糖尿病对冠状动脉慢性完全闭塞(CTO)冠心病患者侧支循环建立影响的调节机制。方法87例经冠脉造影确诊至少1支血管为CTO的冠心病患者,根据Cohen-Rentrop分级标准将侧支循环建立水平分为2组,0~1级为侧支循环水平低患者42例,2~3级为侧支循环水平高患者45例,根据是否合并糖尿病分别比较胰岛素抵抗(IR)水平。应用数学模型稳态模式评估法计算IR指数(HOMA-IR)。22例患者介入术中获得侧支循环及外周血标本,采用非靶向代谢组学比较侧支循环与外周血代谢物差异。结果两组在NT-proBNP(P<0.05)和LVEF(P<0.01)方面比较差异有统计学意义。在非糖尿病CTO患者中,侧支循环水平0~1级组胰岛素抵抗水平高于2~3级组(P<0.01)。CTO伴糖尿病与CTO非糖尿病患者相比,侧支循环及外周血中存在明显差异性代谢物,在侧支循环中,上调代谢物63种,下调48种;外周血中,上调代谢物23种,下调14种。侧支循环中差异性代谢物显著相关的富集通路为芳香化合物降解,脂肪酸生物合成,类固醇降解通路;在外周血中差异代谢物富集通路为戊糖磷酸代谢,细菌趋化性,己内酰胺降解,甘油磷脂代谢,赖氨酸降解通路。结论CTO非糖尿病患者中侧支循环建立水平较低者存在明显的胰岛素抵抗。芳香化合物的降解,脂肪酸生物合成,类固醇降解通路与侧支循环形成密切相关。

NIDDM和IGT患者血浆胰岛素水平及其相关疾病的研究

目的探讨血浆胰岛素水平与高血糖、高血压、高脂血症、肥胖及冠心病等疾病的关系。方法按空腹血浆胰岛素测定值高低分二组，比较二组间有关指标的差异。结果高胰岛素血症组收缩压、舒张压、甘油三脂、体重指数、腰臀比例均明显高于对照组（Ｐ＜０．０５～Ｐ＜０．００１）。结论高胰岛素血症组冠心病危险因素明显增高。

肝脂肪变性指数与2型糖尿病合并冠心病的关联性研究

目的探讨肝脂肪变性指数(HSI)与2型糖尿病(T2DM)合并冠心病(CHD)的关系。方法选取2017年1月至2022年12月在武汉市第三医院心血管内科住院行冠状动脉造影(CAG)的248例T2DM患者作为研究对象,收集所有研究对象性别、年龄、身高、体质量、体质量指数(BMI)及生化检查指标,根据公式计算得到HSI,根据CAG结果将所有研究对象分为CHD组(82例)和非CHD组(166例),采用二元Logistic回归分析T2DM患者发生CHD的危险因素,采用受试者工作特征(ROC)曲线评估HSI对T2DM患者发生CHD的预测价值。结果CHD组和非CHD组BMI、总胆固醇、低密度脂蛋白胆固醇、血浆清蛋白(ALB)、球蛋白(AGB)、尿酸、糖化血红蛋白、HSI比较,差异均有统计学意义(P<0.05)。二元Logistic回归分析结果显示,ALB<40.90 g/L,AGB>25.65 g/L和HSI>39.94是T2DM患者发生CHD的独立危险因素(P<0.05)。ROC曲线分析结果显示,HSI预测T2DM患者发生CHD的曲线下面积为0.556,约登指数为0.117,灵敏度为38.8%,特异度为72.9%。结论高水平HSI是T2DM患者发生CHD的危险因素,HSI对T2DM患者发生CHD有一定的预测价值。

冠脉介入治疗联合抗阻训练对冠心病心绞痛患者心肺功能及运动耐力的影响

目的:探讨冠心病心绞痛(CHDAP)患者采用冠脉介入治疗联合抗阻训练对心肺功能及运动耐力的影响。方法:选取2021年3月—2022年10月锡林郭勒盟中心医院收治的共计94例CHDAP患者,以随机数字表法分成研究组(n=47)与对照组(n=47)。对照组给予冠脉介入治疗联合常规康复训练,研究组给予冠脉介入治疗联合抗阻训练。比较两组心肺功能、心绞痛发作情况、运动耐力及不良事件。结果:干预后,两组峰值分钟通气量(VEpeak)、峰值摄氧量(VO_(2)peak)、峰值脉氧饱和度(SpO_(2)peak)及氧脉搏(O_(2)pulse)均较干预前提高,研究组较对照组均更高,差异均有统计学意义(P<0.05)。干预后,两组心绞痛发作次数较干预前均减少,持续时间均缩短,研究组发作次数较对照组少,持续时间短,差异均有统计学意义(P<0.05)。干预后,两组6分钟步行试验(6MWT)、代谢当量(METs)均优于干预前,研究组较对照组均更优,差异均有统计学意义(P<0.05)。研究组主要不良心血管事件(MACE)发生率(6.38%)较对照组(21.28%)低,差异有统计学意义(P<0.05)。结论:冠脉介入治疗联合抗阻训练应用于CHDAP患者中,能够改善心肺功能,缓解心绞痛发作情况,提高运动耐力,降低MACE发生率。

冠心宁片对冠心病血瘀证氯吡格雷抵抗的调节作用分析

目的分析冠心宁片对冠心病重度血瘀证患者经皮冠状动脉介入术(PCI)后氯吡格雷抵抗的调节作用。方法选取某医院2022年7月-2023年7月收治的冠心病重度血瘀证经皮冠状动脉介入术后伴氯吡格雷抵抗的患者,分为对照组(n=47)与观察组(n=47)。对照组给予阿司匹林+氯吡格雷治疗,观察组给予阿司匹林+氯吡格雷+冠心宁片治疗。观察并记录两组患者的治疗效果、血液流变学指标、血小板抑制率、残余血小板纤维蛋白凝块强度及不良反应发生情况,并进行统计学分析。结果观察组治疗总有效率显著高于对照组(χ^(2)=4.374,P<0.05)。治疗后,观察组全血黏度相比对照组显著降低(P<0.05)。治疗后,观察组血小板抑制率显著高于对照组,而残余血小板纤维蛋白凝块强度显著低于对照组(P<0.05)。观察组不良反应总发生率低于对照组(χ^(2)=3.887,P<0.05)。结论冠心宁片治疗冠心病重度血瘀证患者经皮冠状动脉介入术后氯吡格雷抵抗效果肯定,临床症状改善明显,有效调节氯吡格雷抵抗,值得临床推广。

冠心病介入治疗后医院感染患者病原菌分布及耐药性

目的:分析冠心病介入治疗后医院感染患者病原菌分布及耐药性。方法:选取2020年5月至2023年5月该院收治的600例冠心病介入治疗患者进行前瞻性研究。统计冠心病介入治疗患者医院感染发生率,采集患者感染部位分泌物,并分析病原菌分布和耐药性。结果:600例冠心病介入治疗患者中,发生医院感染51例,医院感染发生率8.5%(51/600),感染部位包括呼吸道(41.18%)、泌尿系统(25.49%)、穿刺部位(13.73%)、胃肠道(11.76%)、皮肤组织(3.92%)等;51例发生医院感染患者感染部位分泌物中检出79株病原菌,包括革兰阳性杆菌41株(51.90%),其中金黄色葡萄球菌检出率最高(34.18%);革兰阴性杆菌38株(48.10%),其中大肠埃希菌检出率最高(29.11%);金黄色葡萄球菌对青霉素的耐药性为90%以上,对红霉素的耐药性为70%以上;大肠埃希菌对克林霉素的耐药性为100.00%,对红霉素的耐药性为80%以上,对青霉素的耐药性为70%以上。结论:金黄色葡萄球菌、大肠埃希菌为冠心病介入治疗后医院感染患者常见病原菌,其耐药性均较高。

NIDDM患者血浆纤溶酶原激活物抑制剂-1(PAI-1)与并发冠心病关系的探讨

为明确血浆纤溶酶原激活物抑制剂－１（ＰＡＩ－１）在ＮＩＤＤＭ发生冠心病中所起的作用，并分析其影响因素。将６０例ＮＩＤＤＭ患者分为冠心病（ＣＡＤ）组和非ＣＡＤ组，用底物发光法检测血浆ＰＡＩ－１及组织型纤溶酶原（ｔ－ＰＡ），同时检测血糖、血胰岛素、血脂等指标。结果表明：ＣＡＤ组血浆ＰＡＩ－１活性水平明显高于非ＣＡＤ组，分别为１０．０６±２．５与８．０８±２．６２，单位Ａｕ／ｍｌ，Ｐ＜０．０１。两组ｔ－ＰＡ相似。在ＣＡＤ组，血浆ＰＡＩ－１活性与空腹胰岛素、胰岛素敏感指数均相关，相关系数分别为０．２４（Ｐ＜０．０５）与－０．３（Ｐ＜０．０１），且与甘油三酯呈正相关（ｒ＝０．２４，Ｐ＜０．０５），和ＡｐｏＢ正相关（ｒ＝０．５１，Ｐ＜０．０５）。血浆ＰＡＩ－１活性水平的升高与ＮＩＤ－ＤＭ发生ＣＡＤ危险性存在相关。胰岛素抵抗状态、高胰岛素血症、高ＴＧ水平都可刺激血浆ＰＡＩ－１活性的升高，而高血糖对其无直接的作用。ＡｐｏＢ参与ＰＡＩ－１活性改变这一过程，并在ＣＡＤ发生中可能介导其它脂质异常刺激ＰＡＩ－１升高的作用。