急性冠脉综合征与循环补体C3的关系探讨

目的评价各种类型急性冠脉综合征(ACS)患者补体第三组分(C3)激活的情况和补体C3激活与心肌损伤的关系。方法ACS组包括ST段抬高型心肌梗死(STEMI)30例,非ST段抬高型心肌梗死(NSTEMI)24例和不稳定型心绞痛(UA)36例。检测ACS患者和健康人血浆C3、肌红蛋白(Mb)浓度。结果STEMI组和NSTEMI组峰值C3水平高于UA组和正常对照组(P0.05)。UA组C3水平高于正常对照组(P0.05)。ACS患者C3水平在住院的前7d均有明显的变化(P0.05)。ACS患者峰值C3水平与肌红蛋白呈正相关(r=0.897,P0.05)。结论ACS患者血浆C3均明显升高。C3水平与ACS的联系提示补体C3激活与心肌坏死有关。     

碎裂QRS波评估急性冠脉综合征的临床价值

目的通过观察急性冠状动脉综合征(acute coronary syndrome,ACS)患者的心电图碎裂QRS波(Fragmented QRS complex,fQ RS)变化,探讨fQRS评估ST段抬高型心肌梗死(ST elevation myocardial infarction,STEMI)、非ST段抬高型心肌梗死(non ST elevation myocardial infarction,NSTEMI)、不稳定型心绞痛(unstable angina,UA)的临床价值。方法观察ACS患者的心电图fQRS发生率。结果 UA组fQRS发生率明显低于STEMI组、NSTEMI组(均p0.05)。结论 fQRS用于诊断STEMI、NSTEMI有较高的临床价值,fQRS可作为鉴别UA与NSTEMI的指标。     

炎症因子在老年急性冠脉综合征中的作用

目的 探讨血清可溶性E-选择素(solubility E solectin,sEsel)、可溶性血管细胞粘附分子(solubility vascular cell adhesion molecule,sVCAM-1)和超敏C反应蛋白(hish sensitivity C reactive protein,hs-CRP)浓度在老年急性冠脉综合征(acute coronary syndrome,ACS)发病中的作用.方法 选择老年ACS患者共70例为研究对象,其中不稳定型心绞痛(unstable angina,UA)及非ST段抬高性心急梗死(non ST segment elevated myocardial infarction,NSTEMI)组40例,ST段抬高性心肌梗死(ST segment elevated myocardial infarction,STEMI)组30例,另外选择健康体检者36例为对照组.采用酶联免疫吸附测定(ELISA)法检测血清sEsel和sVCAM-1浓度,采用胶乳免疫比浊法检测hs-CRP.结果 NSTEMI/UA组和STEMI组的血清sEsel、sVCAM-1和hs-CRP浓度均明显高于对照组,STEMI组高于NSTEMI/UA组,而NSTEMI和UA亚组间血清sEsel、sVCAM-1和hs-CRP浓度差异无统计学意义(P>0.05).结论 老年ACS发生时具有明显的炎症反应,炎症因子sEsel、sVCAM-1及hs-CRP在老年ACS的发生中起到重要作用.     

血清S100B、S100A6、S100P水平升高与急性冠脉综合征的相关性研究

目的:探讨血清终末糖基化产物受体(RAGE)的配基S100B、S100A6、S100P水平与急性冠脉综合征(ACS)相关性。方法:连续收集882例冠状动脉造影患者,检测血清S100B、S100A6、S100P、游离RAGE(sRAGE)、肿瘤坏死因子(TNF)-α水平;根据临床表现及实验室资料,将患者分为对照组(n=251)、稳定型心绞痛(SA)组(n=211)及ACS组(n=420)。结果:ACS组血清S100B、S100A6、S100P和TNF-α水平[(103.73±56.90)ng/L、(5.28±4.15)μg/L、(8.73±7.96)μg/L、(87.82±39.30)ng/L]均显著高于SA组[(81.93±27.65)ng/L、(4.36±2.45)μg/L、(3.41±3.08)μg/L、(71.88±30.70)ng/L]和对照组[(78.00±22.71)ng/L、(3.97±2.57)μg/L、(3.38±2.74)μg/L、(57.07±27.23)ng/L,P0.01];ACS组血清sRAGE水平高于对照组[(724.01±320.37)ng/L对(652.55±351.24)ng/L,P0.01]。进一步将ACS组分为ST段抬高型心肌梗死(STEMI)和不稳定型心绞痛/非ST段抬高型心肌梗死(UA/NSTEMI)2个亚组进行分析,STEMI亚组的S100B、S100A6、S100P水平高于UA/NSTEMI亚组;ACS组血清S100B水平与肌钙蛋白I(cTnI)峰值水平相关(P0.05),血清S100P水平与肌酸激酶同工酶(CK-MB)及cTnI峰值水平均有相关性(P0.01)。多元回归分析发现,S100B、S100A6、S100P和传统危险因素均与ACS发病相关。结论:血清S100B、S100A6、S100P水平与ACS相关,与心肌缺血的损伤程度相关,它们在ACS的病理生理过程中发挥重要作用。     

急性冠脉综合征患者血清缺血修饰白蛋白的检测及意义

检测90例急性冠脉综合证(ACS)患者及35例健康对照组血清缺血修饰白蛋白(IMA)水平,结果ACS患者胸痛发作2h时血清IMA水平明显升高,并达高峰,4h时持续升高,6h时下降至正常范围.胸痛发作2、4h时不稳定型心绞痛(UAP)、非ST段抬高心肌梗死(NSTEMI)、ST段抬高心肌梗死(STEMI)患者血清IMA水平明显高于正常对照组(P<0.05,<0.01);UAP组血清IMA水平明显高于NSTEMI组和STEMI组(P<0.05).认为IMA可作为诊断ACS的早期敏感生化标志物.     

ACS病人成纤维细胞生长因子23与血脂和冠状动脉病变程度的相关性分析

目的:分析急性冠脉综合征(ACS)病人成纤维细胞生长因子23(FGF-23)与血脂水平及冠状动脉病变程度的相关性。方法:选取2022年3月—10月佛山市中医院心血管内科住院及胸痛中心经冠状动脉造影(CAG)检查确诊的ACS病人120例。按照ACS类型分为不稳定型心绞痛(UA)组19例,急性非ST段抬高型心肌梗死(NSTEMI)组47例,急性ST段抬高型心肌梗死(STEMI)组54例。应用酶联免疫吸附法(ELISA)测定病人血清FGF-23水平。采用Gensini评分评价ACS病人冠状动脉病变严重程度。通过Pearson法分析血清FGF-23水平与血脂水平和Gensini评分的相关性,采用多因素Logistic回归分析ACS病人冠状动脉病变程度的危险因素。结果:3组糖尿病史、吸烟史、总胆固醇(TC)、三酰甘油(TG)、低密度脂蛋白胆固醇(LDL-C)、高密度脂蛋白胆固醇(HDL-C)、脂蛋白(a)[Lp(a)]、FGF-23水平比较差异有统计学意义(P<0.01);且STEMI组均高于NSTEMI组与UA组,NSTEMI组高于UA组,差异有统计学意义(P<0.05)。Pear...     

C反应蛋白在急性冠状动脉综合征中的意义

目的　探讨 C反应蛋白 ( CRP)在急性冠状动脉综合征 ( ACS)中的意义。方法　选自住院的病人 2 17例。分为 4组 :1急性心肌梗死 ( AMI)组 5 0例 ;2无 ST段抬高性心肌梗死 ( NSTEMI)组 45例 ;3不稳定型心绞痛 ( UA)组 82例 ;4稳定型心绞痛 ( SA)组40例。应用火箭电泳法测定各组 CRP值 ,分别进行比较。结果　AMI组 CRP浓度 ( 17.62± 8.43 ) mg/L和 NSTEMI组 ( 16.5 3±7.89) mg/L明显高于 UA组 ( 12 .87± 5 .76) mg/L和 SA组 ( 7.94± 3 .76) m g/L ,UA组 CRP浓度明显高于 SA组 ,而 AMI组与NSTEMI组无显著性差异。结论　炎症反应在 ACS的发生中起重要作用 ,CRP水平可作为 ACS严重程度的判断指标之一。     

中医药对急性冠脉综合征C反应蛋白影响的研究进展

急性冠脉综合征(acute coronary syndrome,ACS)涵盖了从不稳定型心绞痛(UA)、急性非ST段抬高型心肌梗死(NSTEMI)到ST段抬高型心肌梗死(STEMI)的一系列临床病理状态.     

急性冠状动脉综合征患者血总胆红素、尿酸水平分析

目的:探讨急性冠状动脉综合征(ACS)患者血清总胆红素、尿酸(UA)水平的变化.方法:将238例ACS患者分为ST段抬高急性心肌梗死(STEMI)组,非ST段抬高急性心肌梗死(NSTEMI)组,不稳定型心绞痛(UAP)组,检测血清总胆红素、UA、血糖、血脂等生化指标,部分ACS患者行冠状动脉造影检查.109例冠状动脉造影检查未见冠状动脉明显狭窄者作为对照组.结果:ACS各组患者血清总胆红素、UA、血糖显著高于对照组,差异有统计学意义(P<0.01或P<0.05).STEMI组总胆红素、血糖显著高于NSTEMI组和UAP组患者,差异有统计学意义(P<0.01).1周后复查,ACS各组患者血清总胆红素明显回降,与对照组比较差异无统计学意义(P>0.05).结论:ACS患者血糖、UA升高,提示机体氧化应激加重;同时血清总胆红素升高,显示机体代偿性抗氧化程度加强.随病情逐渐稳定,胆红素回降.UA和胆红素可间接反映ACS机体氧化、抗氧化情况.胆红素对评估病情进程亦有一定帮助.     

缺血性修饰白蛋白在急性冠脉综合征患者中的改变及临床意义

目的观察缺血修饰白蛋白(IMA)在急性冠脉综合征(ACS)患者中的变化及临床意义。方法选择本院166例ACS患者,其中不稳定型心绞痛(UA)68例,ST段抬高急性心肌梗死(STEMI)56例,非ST段抬高心肌梗死(NSTE-MI)42例,在入院后30min内采静脉血检测其IMA水平,并与40例正常对照组进行比较分析。结果 ACS组血清IMA水平显著高于对照组[(69.71±11.56)U/ml vs(42.91±7.54)U/ml,P<0.01],STEMI组均显著高于UA组[(76.27±11.91)U/ml vs(65.05±9.25)U/ml,P<0.01]和NSTEMI组[(76.27±11.91)U/ml vs(68.53±10.56)U/ml,P<0.01],血清IMA水平与年龄无相关性(ACS组r=-0.07,对照组r=-0.11,两组联合r=-0.05;均P>0.05),对照组IMA的阴性率为100%,ACS患者中阳性预测值为100%,阳性率为89.2%,其在UA、STEMI和NSTEMI组中的阳性率分别为97.10%、85.70%和81.00%,本组中阴性预测值为69%。结论血清IMA显著升高对诊断ACS有一定的临床价值。     

CD14+ monocyte levels in subgroups of acute coronary syndromes

OBJECTIVES: We aimed to investigate whether there were any differences in the percentages of CD14(+) monocytes between subgroups of acute coronary syndromes (ACS). CD14(+) is a monocyte surface receptor that plays a role in the innate immune system. CD14(+) monocytes are associated with complications of atherosclerosis. METHODS: In total we enrolled 115 patients with ACS: 24 with unstable angina (UA); 29 with non-ST elevation myocardial infarction (NSTEMI); and 62 with ST elevation myocardial infarction (STEMI). The levels of C-reactive protein and percentage of CD14(+) monocyte were measured on admission. RESULTS: CD14(+) monocyte percentages were observed to be different between groups by analysis of variance test. The percentages of CD14(+) monocyte were 81.24+/-10.04% in the UA group; 89.40+/-5.84% in the NSTEMI group; and 87.22+/-11.75% in the STEMI group (P=0.013). The differences between the UA and the NSTEMI and between the UA and the STEMI groups with Bonferroni posthoc testing were significant (P=0.014 and P=0.049 respectively). Moreover, no significant difference was found between the NSTEMI and STEMI groups (P=1.000). The C-reactive protein levels in the UA group were detected to be significantly low with Bonferroni posthoc testing compared with both the NSTEMI and STEMI groups (for both comparisons, P<0.002). CONCLUSIONS: A significant difference in CD14(+) monocyte percentages between subgroups of ACS was determined. CD14(+) monocyte percentages can be a useful parameter in differentiating between the subgroups of ACS, especially between UA and myocardial infarction.     

联合检测氨基末端脑钠肽前体和高敏C反应蛋白与冠脉病变程度的相关性研究

目的探讨急性冠脉综合征(ACS)患者冠状动脉粥样硬化程度和血浆氨基末端脑钠肽前体、高敏C反应蛋白水平之间的相关性。方法 ACS患者120例均行冠状动脉造影术,分为不稳定型心绞痛组(UAP组)40例,急性非ST段抬高性心肌梗死组(NSTEMI组)40例与急性ST段抬高性心肌梗死组(STEMI组)40例;同期正常体检者40名作为对照组。冠状动脉病变严重程度用病变血管支数及Gensini评分表示,于入院第2天抽血检测血浆氨基末端脑钠肽前体和高敏C反应蛋白水平,并进行比较。结果 ACS各组血浆氨基末端脑钠肽前体、高敏C反应蛋白水平和Gensini评分显著高于对照组(P<0.01),ACS各组氨基末端脑钠肽前体水平比较差异有统计学意义(P<0.05),Gensini评分各组比较差异无统计学意义;STEMI组高敏C反应蛋白水平高于NSTEMI组和UAP组(P<0.01);NSTEMI组与UAP组高敏C反应蛋白水平比较差异无统计学意义。血浆氨基末端脑钠肽前体、高敏C反应蛋白水平和Gensini评分随病变支数的增加而增加。结论联合检测氨基末端脑钠肽前体和高敏C反应蛋白水平可判断ACS的严重程度,对其诊治及指导早期行有创检查均有重要参考价值。     

肌钙蛋白T与降钙素基因相关肽对急性冠状动脉综合征患者危险分层及预后评估的价值

目的　探讨肌钙蛋白T(cTnT)与降钙素基因相关肽 (CGRP)对急性冠状动脉综合征 (ACS)患者危险分层及预后评估的价值。方法　选择ACS患者 15 8例 ,其中ST段抬高心肌梗死 (STEMI) 72例 ,非ST段抬高心肌梗死(NSTEMI) 2 3例 ,不稳定型心绞痛 (UA) 6 3例 ,入院后立即抽取肘静脉血采用ELISA法测定cTnT和CGRP水平 ,并观察患者住院期间和随访 6个月期间主要心血管事件 (MACE)。结果　NSTEMI组与STEMI组相比 ,cTnT及CGRP水平无显著性差异 ,但NSTEMI组CGRP水平高于STEMI组 ,cTnT水平低于STEMI组。与STEMI组相比 ,UA组患者cTnT水平明显降低 (P <0 .0 5 ) ,而CGRP水平显著增高 (P <0 .0 5 )。陈旧心肌梗死、左心室射血分数、cTnT及CGRP水平是ACS患者MACE发生的独立预测因子。结论　cTnT及CGRP水平在NSTEMI组与STEMI组相似 ,在心绞痛组cTnT亦有轻度增高 ;心肌梗死较心绞痛患者发病时CGRP水平低 ;cTnT及CGRP水平是ACS患者MACE发生的独立预测因子。     

血清新碟呤与急性冠脉综合征患者冠脉病变程度的相关性

目的:分析血清新碟呤(neopterin,Npt)对评估急性冠脉综合征(ACS)冠状动脉病变的临床价值。方法:经冠状动脉造影(CAG)确诊的126例ACS患者,依据临床类型分为:ST段抬高型心肌梗死(STEMI)组45例,非ST段抬高型心肌梗死(NSTEMI)组40例,不稳定型心绞痛(UAP)组41例。采用ELISA法测定并比较各组血清Npt、白细胞介素-8(IL-8)及超敏C反应蛋白(hs-CRP)水平,分析其与冠状动脉病变类型及斑块类型的关系。结果:血清Npt浓度在STEMI组中高于NSTEMI及UAP组(P<0.05),而IL-8及hs-CRP在3组中无显著差异。血清Npt浓度在冠脉复杂病变中显著高于冠脉简单病变与冠脉临界病变(P<0.05),而IL 8及hs CRP在3种病变中无显著差异。Ⅱ型、Ⅲ型斑块患者中血清Npt浓度高于Ⅰ型斑块患者(P<0.05),而IL-8及hs-CRP在3种斑块类型中无显著差异。结论:血清Npt与冠脉综合征患者冠脉病变程度相关,可能成为有效评估ACS患者冠脉病变程度的一个指标。     

白细胞介素-1β和10的全身水平与冠状动脉粥样硬化病变局部水平的关系及其临床意义

目的 观察冠心病患者促炎因子白细胞介素(IL)-1β和抑炎因子IL-10的全身水平与病变局部水平的关系.方法 入选慢性稳定性心绞痛(SA)、不稳定性心绞痛/非ST段抬高型心肌梗死(UA/NSTEMI)、ST段抬高型心肌梗死(STEMI)和拟诊冠心病但冠状动脉造影正常者(对照组)各30例.在所有患者(n=120)的主动脉根部(代表全身水平)、冠状动脉疾病患者(n=90)的冠状动脉病变以远和14例STEMI患者的冠状静脉窦取血,采用ELISA法检测IL-1β和II-10水平,并比较IL-1 β和IL-10全身水平和病变局部水平.结果 对照组、SA、UA/NSTEMI和STEMI组全身IL-1 β水平分别为lg-1(0.97±0.42)、lg-1(0.98±0.43)、lg-11.21±0.42)和lg-1(1.30±0.43)ng/L,UA/NSTEMI和STEMI组均明显高于对照组(P＜0.05,P＜0.01);IL-10水平分别为lg-1(0.77±0.29)、lg-1(0.73±0.45)、lg-1(0.75±0.35)和lg-1(1.14±0.36)ng/L,STEMI组IL-10水平高于对照组(P＜0.01).SA组粥样硬化病变以远IL-1β和IL-10水平分别为lg-1(0.98±0.41)和lg-1(0.67±0.47)ng/L,与全身水平比较差异无统计学意义;UA/NSTEMI组粥样硬化病变以远IL-1 β和IL-10水平分别为lg-1(1.22±0.48)和lg-1(0.89±0.46)ng/L,IL-10血浆浓度高于全身水平(P=0.024),IL-1β水平差异无统计学意义;STEMI组罪犯病变以远IL-1β和IL-10水平分别为lg-1(1.45±0.45)和lg-1(1.35±0.31)ng/L,均高于全身水平(P均＜0.01).左冠状动脉急性闭塞的STEMI患者的全身、冠状动脉内病变以远和冠状静脉窦的IL-1β水平分别为lg-1(1.47±0.37)、lg-1(1.65±0.34)和lg-1(1.53±0.35)ng/L,IL-10水平分别为lg-1(1.06±0.48)、lg-1(1.34±0.39)和lg-1(1.34±0.23)ng/L.冠状静脉窦IL-1β水平显著低于罪犯病变以远水平(P＜0.05),而IL-10水平差异无统计学意义.结论 促炎因子IL-1β和抑炎因子IL-10的全身水平可能不能完全真实反映动脉粥样硬化病变局部的炎症活动程度.

Abstract：

Objective To compare the systemic and local near atherosclerosis lesion levels of proinflammatory factor interleukin-1β (IL-1β) and anti-inflammatory factor IL-10 in patients with coronary artery disease (CAD). Methods Plasma samples were collected from 30 individuals without angiographical coronary artery stenosis (control group), 90 patients with CAD (stable angina pectoris, SA, n = 30,unstable angina pectoris/non-ST-segment elevation myocardial infarction, UA/NSTEMI, n = 30 and ST-segment elevation myocardial infarction, STEMI, n = 30). During diagnostic coronary angiography or interventional procedures, systemic samples were obtained from aorta root in all patients (n = 120), local samples from distal of the coronary lesion in patients with CAD (n = 90), and samples from coronary sinus of 14 patients with STEMI. IL-1β and IL-10 were determined by ELISA method. Results The result showed systemic levels of IL-1β were lg-1 (0. 97 ±0. 42), lg-1 (0. 98 ±0. 43), lg-1 ( 1.21 ±0. 42), lg-1 ( 1.30 ±0. 43)ng/L in the control, SA,UA/NSTEMI and STEMI groups, were significantly higher in UA/NSTEMI and STEMI groups compared with the control group (P ＜ 0. 05, P ＜0. 01 ); systemic IL-10 levels were lg-1 (0. 77 ± 0. 29), lg - 1 (0. 73 ± 0. 45 ), lg- 1 (0. 75 ± 0. 35 ), lg- 1 ( 1.14 ± 0. 36) ng/L in the four groups and was significantly higher in STEMI group than the control group ( P ＜ 0. 01 ). The local concentration of IL-1β and IL-10 were similar as the systemic levels in SA group [lg-1 (0.98 ±0.41 ), lg-1 (0.67 ±0.47)ng/L], local IL-1β [lg-1 ( 1.22 ±0. 48) ng/L] was similar while local IL-10 [lg-1 (0. 89 ±0. 46) ng/L]was significantly higher than the systemic levels in UA/NSTEMI group. The local levels of IL-1β and IL-10 [lg-1 ( 1.45 ±0. 45), lg-1 ( 1.35 ±0. 31 ) ng/L] were both significantly higher than the systemic levels in STEMI group ( all P ＜ 0. 01 ). The IL-1β levels of systemic, local and coronary sinus in STEMI patients with acute totally occluded left coronary artery [lg-1 ( 1.47 ± 0. 37 ), lg- 1 ( 1.65 ± 0. 34), lg- 1 ( 1.53 ± 0. 35 )ng/L] and the IL-10 levels [lg-1 ( 1.06 ± 0. 48 ), lg- 1 ( 1.34 ± 0. 39 ), lg-1 ( 1.34 ± 0. 23 ) ng/L] were similar. The level of IL-1β in coronary sinus was significantly lower than in culprit lesion (P＜0. 05) while IL-10 levels were similar at these two sites ( P ＞ 0. 05 ). Conclusion The systemic level of pro-inflammatory marker IL-I β and anti-inflammatory marker IL-10 could not rehably reflect the local inflammatory status near the atherosclerosis plaque locations.     

Association between paraoxonase 1 activity and severity of coronary artery disease in patients with acute coronary syndromes

OBJECTIVE: We sought to investigate serum paraoxonase/arylesterase activities in patients with acute coronary syndromes (ACS) and their correlations with the severity and extent of coronary artery disease (CAD). METHODS AND RESULTS: Three groups of patients were investigated: 89 patients with ACS, 54 patients with normal coronary angiograms (no-CAD group), and 27 healthy comparison subjects. ACS patients were divided into three groups according to their clinical presentation: unstable angina pectoris (UAP, Braunwald III-B, n = 31), non-ST elevation myocardial infarction (NSTEMI) (n = 27), and ST-elevation myocardial infarction (STEMI) (n = 31). Serum paraoxonase/arylesterase activities were measured spectrophotometrically. Angiographic CAD extent was expressed both by the number of vessels diseased and by the Gensini scoring system. Results showed that serum paraoxonase/ arylesterase activities and the paraoxonase/high density lipoprotein-cholesterol (HDL-C) ratio were significantly lower in the STEMI, NSTEMI, UAP groups than in no-CAD and control groups. Serum paraoxonase/arylesterase activities and paraoxonase/HDL-C ratio were reduced in patients with 2-vessel disease (VD) and 3-VD compared to the I-VD and no-CAD group (P < 0.001). In patients with ACS, the Gensini score correlated inversely with serum paraoxonase (r = -0.419, P < 0.001), arylesterase (r = -0.492, P < 0.0001), and the paraoxonase/HDL-C ratio (r = -0.377, P < 0.001). Serum arylesterase (r = 0.161, P = 0.03) and paraoxonase (r = 0.135, P = 0.002) activities were positively correlated with HDL-C levels. Serum arylesterase activity (P < 0.0001), gender (P = 0.0037), diabetes mellitus (P = 0.005) and LDL-C levels (P = 0.03) were independent predictors of CAD presence. CONCLUSIONS: Serum paraoxonase/arylesterase activities are reduced in ACS patients and inversely correlated with the severity of CAD.     

通过ROC曲线评估联合检测TnI、hs-CRP和NT-proBNP对老年急性冠状动脉综合征的诊断价值

目的:通过ROC曲线探讨肌钙蛋白I(TnI)、超敏C反应蛋白(hs-CRP)和N末端脑利钠肽前体(NT-proBNP)联合检测在老年急性冠状动脉(冠脉)综合征(ACS)临床诊断中的应用价值。方法:收集不稳定型心绞痛(UA组,60例)、非ST段抬高型心肌梗死(NSTEMI组,61例)、ST段抬高性心肌梗死(STEMI组,59例)患者及健康者(对照组,60例)血清样本,用化学发光免疫法检测TnI,电化学发光免疫法检测NT-proBNP,速率散射免疫比浊法测定hs-CRP;绘制ROC曲线并建立Logistic回归模型,分析各指标单独和联合检测在UA、NSTEMI及STEMI诊断中的作用。结果:除UA组TnI外,ACS 3个组中血清TnI、hs-CRP与NT-proBNP值显著高于对照组(P<0.05);与单独检测相比,3项指标联合检测时,UA组、NSTEMI组和STEMI组ROC曲线下面积(AUC)[(0.858±0.051)、(0.988±0.013)和(0.998±0.004)]最大,灵敏度(57.8%、95.9%和99.1%)和特异度(94.7%、100.0%和100.0%)也最好。结论:联合检测TnI、hs-CRP和NT-proBNP有助于老年ACS中UA的诊断,对NSTEMI与STEMI的灵敏度和特异度也能达到最优化,但对区分NSTEMI和STEMI效果不明显。     

急性冠脉综合征患者血清OPG、sRANKL、OPG/sRANKL比值与冠状动脉粥样硬化斑块稳定程度的相关性

目的:探讨急性冠脉综合征（ACS）患者血清骨保护素（osteoprotegerin,OPG）及其配体（souble-RANKL,sRANKL）和OPG/sRANKL比值与冠状动脉粥样硬化稳定程度的相关性。方法: 纳入研究者分成3组:ACS患者（335例）、稳定型心绞痛（SAP）患者（120例）与正常对照组（120例）。其中ACS组又分为不稳定心绞痛（UAP组）134例,非ST段抬高型心肌梗死（NSTEMI组）80例以及ST段抬高型心肌梗死（STEMI）组121例3组。通过ELISA检测其血清OPG和sRANKL水平,并将二者血清水平及比值（OPG/sRANKL）与ACS冠状动脉粥样硬化斑块稳定程度进行比较分析。结果: ACS、SAP及对照组3组间血清OPG、sRANKL、OPG/sRANKL比值均有显著差异（均P<0.01）。 ACS组内3组血清OPG、sRANKL、OPG/sRANKL比值也均有显著差异（均P<0.05）,其中STEMI组与UAP组有显著差异（P<0.05）,UAP组与NSTEMI组、NSTEMI与STEMI组间无显著差异。 冠脉Gensini积分与血清OPG水平呈正相关（r=0.252,P<0.01）,与OPG/sRANKL呈正相关（r=0.284,P<0.01）,与血清sRANKL水平呈负相关（r=-0.235,P<0.05）。结论: 血清OPG、sRANKL、OPG/sRANK比值与ACS病情及冠状动脉粥样硬化斑块稳定程度有关联。     

急性冠状动脉综合征患者N末端B型钠尿肽前体和肌钙蛋白Ⅰ水平与冠状动脉病变的关系

目的探讨急性冠状动脉综合征患者血清N末端B型钠尿肽前体(NT-proBNP)和肌钙蛋白I(cTnI)含量与冠状动脉病变程度的关系。方法选择急性冠状动脉综合征患者98例,分为急性ST段抬高心肌梗死(STEMI)组46例,急性非ST段抬高心肌梗死(NSTEMI)组16例,不稳定性心绞痛(UAP)组36例,均于入院时或发病24 h内测定患者血清NT-proBNP、cTnI含量,冠状动脉造影了解冠状动脉病变情况,并行心脏彩色多普勒超声检测,以评估患者的心功能。结果与UAP组比较,STEMI组和NSTEMI组NT-proBNP明显升高;与NSTEMI组比较,STEMI组cTnI明显升高(P<0.05)。NT-proBNP与冠状动脉病变积分呈正相关(r=0.156,P<0.05),与LVEF呈负相关(r=-0.196,P<0.01);cTnI与冠状动脉病变积分呈正相关(r=0.247,P<0.01)。结论急性冠状动脉综合征患者NT-proBNP与cTnI无关,但两者均可反映冠状动脉病变的严重程度。NT-proBNP的高低能反映患者的心功能状态,cTnI则与心功能无关。     

急性冠状动脉综合征患者血运重建的预后

目的 入选2003年7月1日至2005年9月30日在我院接受血运重建治疗的6005例患者,1年后对患者进了解接受血运重建治疗的急性冠状动脉综合征患者的近期和长期预后.方法 行电话或门诊随访.比较ST段抬高心肌梗死(STEMI)、非ST段抬高急性心肌梗死(NSTEMI)和不稳定性心绞痛患者的临床和预后[不良心脑血管事件(MACCE)包括伞因死亡、非致死性心肌梗死、非致死性卒中和再次血运重建]情况.结果 共4865例患者,其中STEMI患者955例,NSTEMI患者263例,不稳定性心绞痛患者3647例,3组患者的院内和18个月生存率(分别为96%、98%和98%)差异无统计学意义,不稳定性心绞痛患者18个月MACCE发生率较低(STEMI,NSTEMI和不稳定性心绞痛3组无事件生存率分别为86%、86%和89%).结论 接受血运重建的STEMI、NSTEMI和不稳定性心绞痛患者临床情况有所差异,但是近期和长期病死率相似,不稳定性心绞痛患者的长期MACCE发生率低.

Abstract：

Objective To evaluate short-term and long-term prognosis of revascularization in patients with acute coronary syndrome. Methods A total of 6005 patients who received coronary revascularization in our institution between July 2003 and September 2005 were enrolled. The patients were followed up in clinic or by telephone after discharge between September 2006 and November 2006. The clinical and prognosis data of all-cause mortality, neo-myocardial infarction, nonfatal stroke, and rerevascularization of ST-segment elevation myocardial infarction ( STEMI ) , non ST-segment elevation myocardial infarction ( NSTEMI) and major adverse cardiovascular and cerebrovascular events ( MACCE) were analyzed. Results Among 4865 acute coronary syndrome patients, 955 cases were STEMI; 263 cases were NSTEMI; and 3647 cases were unstable angina ( UA) pectoris. There were no significant difference for in-hospital mortality and late mortality ( 18 month survival 96% , 98% and 98% ) between patients with STEMI, NSTEMI and UA. Patients with UA had lower MACCE rate (18 month non-MACCE survival of STEMI, NSTEMI and UA group were 86% , 86% , and 89% respectively). Conclusions Despite different clinical characteristics, patients with STEMI, NSTEMI and UA undergoing revascularization had similar short-term and long-term mortality. Patients with UA had lower MACCE rate.